From ba0daf52084c71661ada724debd74f4c8a3934be Mon Sep 17 00:00:00 2001
From: dirtydishes <dishes@dpdrm.com>
Date: Mon, 4 May 2026 03:29:38 -0400
Subject: [PATCH] Implement server-backed live history

---
 .env.example                                 |   1 +
 README.md                                    |   6 +-
 apps/web/app/globals.css                     |  24 +++
 apps/web/app/terminal.tsx                    | 209 +++++++++++++++++++
 packages/storage/src/clickhouse.ts           |  16 ++
 packages/storage/tests/equity-quotes.test.ts |  32 +++
 packages/types/src/live.ts                   |   6 +-
 services/api/src/index.ts                    |  14 +-
 services/api/src/live.ts                     |  54 ++---
 services/api/tests/live.test.ts              |  84 +++++++-
 10 files changed, 402 insertions(+), 44 deletions(-)

diff --git a/.env.example b/.env.example
index f86691a..8a9ead7 100644
--- a/.env.example
+++ b/.env.example
@@ -92,6 +92,7 @@ REPLAY_LOG_EVERY=1000
 LIVE_LIMIT_OPTIONS=10000
 LIVE_LIMIT_NBBO=10000
 LIVE_LIMIT_EQUITIES=10000
+LIVE_LIMIT_EQUITY_QUOTES=10000
 LIVE_LIMIT_EQUITY_JOINS=10000
 LIVE_LIMIT_FLOW=10000
 LIVE_LIMIT_CLASSIFIER_HITS=10000
diff --git a/README.md b/README.md
index f07916b..b5720fa 100644
--- a/README.md
+++ b/README.md
@@ -261,6 +261,7 @@ Default `smart-money` policy rejects lower-information prints and keeps high-con
 | `LIVE_LIMIT_OPTIONS` | `10000` | In-memory/Redis live cache depth for options channel (clamped `1..100000`). |
 | `LIVE_LIMIT_NBBO` | `10000` | Live cache depth for options NBBO channel (clamped `1..100000`). |
 | `LIVE_LIMIT_EQUITIES` | `10000` | Live cache depth for equities channel (clamped `1..100000`). |
+| `LIVE_LIMIT_EQUITY_QUOTES` | `10000` | Live cache depth for equity quotes channel (clamped `1..100000`). |
 | `LIVE_LIMIT_EQUITY_JOINS` | `10000` | Live cache depth for equity join channel (clamped `1..100000`). |
 | `LIVE_LIMIT_FLOW` | `10000` | Live cache depth for flow packet channel (clamped `1..100000`). |
 | `LIVE_LIMIT_CLASSIFIER_HITS` | `10000` | Live cache depth for classifier hits channel (clamped `1..100000`). |
@@ -303,7 +304,10 @@ Default `smart-money` policy rejects lower-information prints and keeps high-con
   - `view=raw` — audit/debug path that preserves every stored print.
 - The default Tape page options/packets posture is now stock-only, hides `B` / `BB`, keeps calls and puts visible, and applies in-memory min-notional controls immediately.
 - Live retention uses a two-tier model:
-  - API/Redis maintain a bounded hot cache per live generic channel.
+  - ClickHouse is durable server history; Redis is a bounded hot cache per live generic channel.
+  - `LIVE_LIMIT_*` controls initial snapshot/hot-cache depth, not total persisted history.
+  - Browser state is only a rendering window and UI preferences, not a market-data database.
+  - Devices connected to the same API hydrate from the same server-seen history.
   - UI keeps a bounded hot window for rendering performance around the signal view rather than raw noise.
   - Options prints can use a deeper dedicated cap via `NEXT_PUBLIC_LIVE_HOT_WINDOW_OPTIONS` without raising every other feed.
   - Alert/drawer evidence is pinned and hydrated by id/trace so details remain inspectable after hot-window eviction.
diff --git a/apps/web/app/globals.css b/apps/web/app/globals.css
index 8e2cfca..1dfa32d 100644
--- a/apps/web/app/globals.css
+++ b/apps/web/app/globals.css
@@ -783,6 +783,30 @@ h3 {
   white-space: nowrap;
 }
 
+.load-older {
+  display: flex;
+  flex: 0 0 auto;
+  align-items: center;
+  justify-content: center;
+  gap: 10px;
+  padding: 4px 0 0;
+  font-size: 0.76rem;
+  color: var(--muted);
+}
+
+.load-older button {
+  min-width: 112px;
+  white-space: nowrap;
+}
+
+.load-older span {
+  max-width: 260px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  color: var(--danger);
+}
+
 .missed-count {
   width: 86px;
   font-size: 0.72rem;
diff --git a/apps/web/app/terminal.tsx b/apps/web/app/terminal.tsx
index 9f56047..d720116 100644
--- a/apps/web/app/terminal.tsx
+++ b/apps/web/app/terminal.tsx
@@ -23,6 +23,7 @@ import type {
   EquityCandle,
   EquityPrint,
   EquityPrintJoin,
+  EquityQuote,
   FlowPacket,
   InferredDarkEvent,
   LiveServerMessage,
@@ -2173,9 +2174,15 @@ type LiveSessionState = {
   connectedAt: number | null;
   lastUpdate: number | null;
   lastEventByChannel: Partial<Record<LiveSubscription["channel"], number>>;
+  manifest: LiveSubscription[];
+  historyCursors: Partial<Record<string, Cursor | null>>;
+  historyLoading: Partial<Record<string, boolean>>;
+  historyErrors: Partial<Record<string, string | null>>;
+  loadOlder: (channel: LiveSubscription["channel"]) => Promise<void>;
   options: OptionPrint[];
   nbbo: OptionNBBO[];
   equities: EquityPrint[];
+  equityQuotes: EquityQuote[];
   equityJoins: EquityPrintJoin[];
   flow: FlowPacket[];
   classifierHits: ClassifierHitEvent[];
@@ -2185,6 +2192,46 @@ type LiveSessionState = {
   chartOverlay: EquityPrint[];
 };
 
+type LiveHistoryResponse<T> = {
+  data: T[];
+  next_before: Cursor | null;
+};
+
+const LIVE_HISTORY_ENDPOINTS: Partial<Record<LiveSubscription["channel"], string>> = {
+  options: "/history/options",
+  nbbo: "/history/nbbo",
+  equities: "/history/equities",
+  "equity-quotes": "/history/equity-quotes",
+  "equity-joins": "/history/equity-joins",
+  flow: "/history/flow",
+  "classifier-hits": "/history/classifier-hits",
+  alerts: "/history/alerts",
+  "inferred-dark": "/history/inferred-dark"
+};
+
+const appendOptionFlowFilters = (params: URLSearchParams, filters: OptionFlowFilters | undefined): void => {
+  if (!filters) {
+    return;
+  }
+  if (filters.view) {
+    params.set("view", filters.view);
+  }
+  if (filters.securityTypes?.length === 1) {
+    params.set("security", filters.securityTypes[0]);
+  } else if (filters.securityTypes && filters.securityTypes.length > 1) {
+    params.set("security", "all");
+  }
+  if (filters.nbboSides?.length) {
+    params.set("side", filters.nbboSides.join(","));
+  }
+  if (filters.optionTypes?.length) {
+    params.set("type", filters.optionTypes.join(","));
+  }
+  if (typeof filters.minNotional === "number") {
+    params.set("min_notional", String(filters.minNotional));
+  }
+};
+
 const dedupeLiveSubscriptions = (subscriptions: LiveSubscription[]): LiveSubscription[] => {
   const seen = new Set<string>();
   return subscriptions.filter((subscription) => {
@@ -2266,9 +2313,13 @@ const useLiveSession = (
   const [lastEventByChannel, setLastEventByChannel] = useState<
     Partial<Record<LiveSubscription["channel"], number>>
   >({});
+  const [historyCursors, setHistoryCursors] = useState<Partial<Record<string, Cursor | null>>>({});
+  const [historyLoading, setHistoryLoading] = useState<Partial<Record<string, boolean>>>({});
+  const [historyErrors, setHistoryErrors] = useState<Partial<Record<string, string | null>>>({});
   const [options, setOptions] = useState<OptionPrint[]>([]);
   const [nbbo, setNbbo] = useState<OptionNBBO[]>([]);
   const [equities, setEquities] = useState<EquityPrint[]>([]);
+  const [equityQuotes, setEquityQuotes] = useState<EquityQuote[]>([]);
   const [equityJoins, setEquityJoins] = useState<EquityPrintJoin[]>([]);
   const [flow, setFlow] = useState<FlowPacket[]>([]);
   const [classifierHits, setClassifierHits] = useState<ClassifierHitEvent[]>([]);
@@ -2291,9 +2342,13 @@ const useLiveSession = (
       setConnectedAt(null);
       setLastUpdate(null);
       setLastEventByChannel({});
+      setHistoryCursors({});
+      setHistoryLoading({});
+      setHistoryErrors({});
       setOptions([]);
       setNbbo([]);
       setEquities([]);
+      setEquityQuotes([]);
       setEquityJoins([]);
       setFlow([]);
       setClassifierHits([]);
@@ -2347,6 +2402,7 @@ const useLiveSession = (
 
       const subscription = message.op === "snapshot" ? message.snapshot.subscription : message.subscription;
       const items = message.op === "snapshot" ? message.snapshot.items : [message.item];
+      const subscriptionKey = getLiveSubscriptionKey(subscription);
       const updateAt = Date.now();
 
       const mergeItems = <T extends SortableItem>(
@@ -2380,6 +2436,9 @@ const useLiveSession = (
         case "equities":
           mergeItems(setEquities, items as EquityPrint[]);
           break;
+        case "equity-quotes":
+          mergeItems(setEquityQuotes, items as EquityQuote[]);
+          break;
         case "equity-joins":
           mergeItems(setEquityJoins, items as EquityPrintJoin[]);
           break;
@@ -2403,6 +2462,17 @@ const useLiveSession = (
           break;
       }
 
+      if (message.op === "snapshot") {
+        setHistoryCursors((current) => ({
+          ...current,
+          [subscriptionKey]: message.snapshot.next_before
+        }));
+        setHistoryErrors((current) => ({
+          ...current,
+          [subscriptionKey]: null
+        }));
+      }
+
       if (items.length > 0) {
         setLastEventByChannel((current) => ({
           ...current,
@@ -2503,14 +2573,114 @@ const useLiveSession = (
     subscribedMapRef.current = nextMap;
   }, [enabled, manifest]);
 
+  const loadOlder = useCallback(
+    async (channel: LiveSubscription["channel"]) => {
+      const subscription = manifest.find((candidate) => candidate.channel === channel);
+      if (!enabled || !subscription) {
+        return;
+      }
+      const endpoint = LIVE_HISTORY_ENDPOINTS[subscription.channel];
+      if (!endpoint) {
+        return;
+      }
+      const key = getLiveSubscriptionKey(subscription);
+      const cursor = historyCursors[key];
+      if (!cursor || historyLoading[key]) {
+        return;
+      }
+
+      setHistoryLoading((current) => ({ ...current, [key]: true }));
+      setHistoryErrors((current) => ({ ...current, [key]: null }));
+
+      try {
+        const params = new URLSearchParams({
+          before_ts: String(cursor.ts),
+          before_seq: String(cursor.seq),
+          limit: String(subscription.channel === "options" ? 500 : 200)
+        });
+        if (subscription.channel === "options" || subscription.channel === "flow") {
+          appendOptionFlowFilters(params, subscription.filters);
+        }
+        const response = await fetch(buildApiUrl(`${endpoint}?${params.toString()}`));
+        if (!response.ok) {
+          const detail = await readErrorDetail(response);
+          throw new Error(detail || `HTTP ${response.status}`);
+        }
+        const payload = (await response.json()) as LiveHistoryResponse<SortableItem>;
+        const older = payload.data ?? [];
+
+        const mergeOlder = <T extends SortableItem>(
+          setter: Dispatch<SetStateAction<T[]>>,
+          limit: number
+        ) => {
+          setter((prev) =>
+            mergeNewest(older as T[], prev, limit, (evicted) =>
+              incrementRetentionMetric("hotWindowEvictions", evicted)
+            )
+          );
+        };
+
+        switch (subscription.channel) {
+          case "options":
+            mergeOlder(setOptions, LIVE_HOT_WINDOW_OPTIONS);
+            break;
+          case "nbbo":
+            mergeOlder(setNbbo, LIVE_HOT_WINDOW);
+            break;
+          case "equities":
+            mergeOlder(setEquities, LIVE_HOT_WINDOW);
+            break;
+          case "equity-quotes":
+            mergeOlder(setEquityQuotes, LIVE_HOT_WINDOW);
+            break;
+          case "equity-joins":
+            mergeOlder(setEquityJoins, LIVE_HOT_WINDOW);
+            break;
+          case "flow":
+            mergeOlder(setFlow, LIVE_HOT_WINDOW);
+            break;
+          case "classifier-hits":
+            mergeOlder(setClassifierHits, LIVE_HOT_WINDOW);
+            break;
+          case "alerts":
+            mergeOlder(setAlerts, LIVE_HOT_WINDOW);
+            break;
+          case "inferred-dark":
+            mergeOlder(setInferredDark, LIVE_HOT_WINDOW);
+            break;
+        }
+
+        setHistoryCursors((current) => ({
+          ...current,
+          [key]: older.length > 0 ? payload.next_before : null
+        }));
+        setLastUpdate(Date.now());
+      } catch (error) {
+        setHistoryErrors((current) => ({
+          ...current,
+          [key]: error instanceof Error ? error.message : String(error)
+        }));
+      } finally {
+        setHistoryLoading((current) => ({ ...current, [key]: false }));
+      }
+    },
+    [enabled, manifest, historyCursors, historyLoading]
+  );
+
   return {
     status,
     connectedAt,
     lastUpdate,
     lastEventByChannel,
+    manifest,
+    historyCursors,
+    historyLoading,
+    historyErrors,
+    loadOlder,
     options,
     nbbo,
     equities,
+    equityQuotes,
     equityJoins,
     flow,
     classifierHits,
@@ -2582,6 +2752,39 @@ const TapeControls = ({ paused, onTogglePause, isAtTop, missed, onJump }: TapeCo
   );
 };
 
+type LoadOlderControlProps = {
+  channel: LiveSubscription["channel"];
+};
+
+const LoadOlderControl = ({ channel }: LoadOlderControlProps) => {
+  const state = useTerminal();
+  const subscription = state.liveSession.manifest.find((candidate) => candidate.channel === channel);
+  if (state.mode !== "live" || !subscription || !(subscription.channel in LIVE_HISTORY_ENDPOINTS)) {
+    return null;
+  }
+
+  const key = getLiveSubscriptionKey(subscription);
+  const cursor = state.liveSession.historyCursors[key];
+  const loading = Boolean(state.liveSession.historyLoading[key]);
+  const error = state.liveSession.historyErrors[key];
+  if (!cursor && !loading && !error) {
+    return null;
+  }
+
+  return (
+    <div className="load-older">
+      <button
+        type="button"
+        onClick={() => void state.liveSession.loadOlder(channel)}
+        disabled={!cursor || loading}
+      >
+        {loading ? "Loading older" : cursor ? "Load older" : "No more history"}
+      </button>
+      {error ? <span>{error}</span> : null}
+    </div>
+  );
+};
+
 type CandleChartProps = {
   ticker: string;
   intervalMs: number;
@@ -5265,6 +5468,7 @@ const OptionsPane = ({ limit }: OptionsPaneProps) => {
             ) : null}
           </div>
         )}
+        {!limit ? <LoadOlderControl channel="options" /> : null}
       </div>
     </Pane>
   );
@@ -5342,6 +5546,7 @@ const EquitiesPane = ({ limit }: EquitiesPaneProps) => {
             {virtual.bottomSpacerHeight > 0 ? (
               <div style={{ height: `${virtual.bottomSpacerHeight}px` }} aria-hidden />
             ) : null}
+            {!limit ? <LoadOlderControl channel="equities" /> : null}
           </>
         )}
       </div>
@@ -5481,6 +5686,7 @@ const FlowPane = ({ limit, title = "Flow" }: FlowPaneProps) => {
             {virtual.bottomSpacerHeight > 0 ? (
               <div style={{ height: `${virtual.bottomSpacerHeight}px` }} aria-hidden />
             ) : null}
+            {!limit ? <LoadOlderControl channel="flow" /> : null}
           </>
         )}
       </div>
@@ -5576,6 +5782,7 @@ const AlertsPane = ({ limit, withStrip = false, className }: AlertsPaneProps) =>
             {virtual.bottomSpacerHeight > 0 ? (
               <div style={{ height: `${virtual.bottomSpacerHeight}px` }} aria-hidden />
             ) : null}
+            {!limit ? <LoadOlderControl channel="alerts" /> : null}
           </>
         )}
       </div>
@@ -5656,6 +5863,7 @@ const ClassifierPane = ({ limit, className }: ClassifierPaneProps) => {
             {virtual.bottomSpacerHeight > 0 ? (
               <div style={{ height: `${virtual.bottomSpacerHeight}px` }} aria-hidden />
             ) : null}
+            {!limit ? <LoadOlderControl channel="classifier-hits" /> : null}
           </>
         )}
       </div>
@@ -5743,6 +5951,7 @@ const DarkPane = ({ limit, className }: DarkPaneProps) => {
             {virtual.bottomSpacerHeight > 0 ? (
               <div style={{ height: `${virtual.bottomSpacerHeight}px` }} aria-hidden />
             ) : null}
+            {!limit ? <LoadOlderControl channel="inferred-dark" /> : null}
           </>
         )}
       </div>
diff --git a/packages/storage/src/clickhouse.ts b/packages/storage/src/clickhouse.ts
index c53caa4..850b699 100644
--- a/packages/storage/src/clickhouse.ts
+++ b/packages/storage/src/clickhouse.ts
@@ -1264,6 +1264,22 @@ export const fetchEquityPrintsBefore = async (
   return EquityPrintSchema.array().parse(rows.map(normalizeEquityRow));
 };
 
+export const fetchEquityQuotesBefore = async (
+  client: ClickHouseClient,
+  beforeTs: number,
+  beforeSeq: number,
+  limit: number
+): Promise<EquityQuote[]> => {
+  const safeLimit = clampLimit(limit);
+  const result = await client.query({
+    query: `SELECT * FROM ${EQUITY_QUOTES_TABLE} WHERE ${buildBeforeTupleCondition("ts", "seq", beforeTs, beforeSeq)} ORDER BY ts DESC, seq DESC LIMIT ${safeLimit}`,
+    format: "JSONEachRow"
+  });
+
+  const rows = await result.json<unknown[]>();
+  return EquityQuoteSchema.array().parse(rows.map(normalizeEquityQuoteRow));
+};
+
 export const fetchEquityPrintJoinsBefore = async (
   client: ClickHouseClient,
   beforeTs: number,
diff --git a/packages/storage/tests/equity-quotes.test.ts b/packages/storage/tests/equity-quotes.test.ts
index bc3917e..23a34f0 100644
--- a/packages/storage/tests/equity-quotes.test.ts
+++ b/packages/storage/tests/equity-quotes.test.ts
@@ -4,6 +4,7 @@ import {
   EQUITY_QUOTES_TABLE,
   normalizeEquityQuote
 } from "../src/equity-quotes";
+import { fetchEquityQuotesBefore, type ClickHouseClient } from "../src/clickhouse";
 
 const baseQuote = {
   source_ts: 100,
@@ -27,4 +28,35 @@ describe("equity-quotes storage helpers", () => {
     expect(ddl).toContain(EQUITY_QUOTES_TABLE);
     expect(ddl).toContain("CREATE TABLE IF NOT EXISTS");
   });
+
+  it("fetches older quotes with tuple cursor ordering", async () => {
+    let queryText = "";
+    const client = {
+      query: async ({ query }: { query: string }) => {
+        queryText = query;
+        return {
+          async json<T>() {
+            return [
+              {
+                ...baseQuote,
+                source_ts: 90,
+                ingest_ts: 201,
+                seq: 2,
+                trace_id: "trace-2",
+                ts: 90
+              }
+            ] as T;
+          }
+        };
+      }
+    } as unknown as ClickHouseClient;
+
+    const rows = await fetchEquityQuotesBefore(client, 100, 3, 25);
+
+    expect(rows).toHaveLength(1);
+    expect(rows[0]?.trace_id).toBe("trace-2");
+    expect(queryText).toContain(EQUITY_QUOTES_TABLE);
+    expect(queryText).toContain("WHERE (ts, seq) < (100, 3)");
+    expect(queryText).toContain("ORDER BY ts DESC, seq DESC LIMIT 25");
+  });
 });
diff --git a/packages/types/src/live.ts b/packages/types/src/live.ts
index 3d86883..da86c86 100644
--- a/packages/types/src/live.ts
+++ b/packages/types/src/live.ts
@@ -5,6 +5,7 @@ import {
   EquityCandleSchema,
   EquityPrintJoinSchema,
   EquityPrintSchema,
+  EquityQuoteSchema,
   FlowPacketSchema,
   InferredDarkEventSchema,
   OptionNBBOSchema,
@@ -26,6 +27,7 @@ export const LiveGenericChannelSchema = z.enum([
   "options",
   "nbbo",
   "equities",
+  "equity-quotes",
   "equity-joins",
   "flow",
   "classifier-hits",
@@ -37,6 +39,7 @@ export const LiveChannelSchema = z.enum([
   "options",
   "nbbo",
   "equities",
+  "equity-quotes",
   "equity-joins",
   "flow",
   "classifier-hits",
@@ -59,7 +62,7 @@ export const LiveSubscriptionSchema = z.discriminatedUnion("channel", [
     filters: OptionFlowFiltersSchema.optional()
   }),
   z.object({
-    channel: z.enum(["nbbo", "equities", "equity-joins", "classifier-hits", "alerts", "inferred-dark"])
+    channel: z.enum(["nbbo", "equities", "equity-quotes", "equity-joins", "classifier-hits", "alerts", "inferred-dark"])
   }),
   z.object({
     channel: z.literal("equity-candles"),
@@ -78,6 +81,7 @@ const livePayloadSchemas = {
   options: OptionPrintSchema,
   nbbo: OptionNBBOSchema,
   equities: EquityPrintSchema,
+  "equity-quotes": EquityQuoteSchema,
   "equity-joins": EquityPrintJoinSchema,
   flow: FlowPacketSchema,
   "classifier-hits": ClassifierHitEventSchema,
diff --git a/services/api/src/index.ts b/services/api/src/index.ts
index c8fa667..911c4bf 100644
--- a/services/api/src/index.ts
+++ b/services/api/src/index.ts
@@ -60,6 +60,7 @@ import {
   fetchEquityPrintsBefore,
   fetchEquityPrintsRange,
   fetchEquityPrintJoinsAfter,
+  fetchEquityQuotesBefore,
   fetchEquityQuotesAfter,
   fetchInferredDarkBefore,
   fetchInferredDarkAfter,
@@ -977,19 +978,21 @@ const run = async () => {
   const fanoutLive = async (
     subscription: LiveSubscription,
     item: unknown,
-    ingestChannel: "options" | "nbbo" | "equities" | "equity-candles" | "equity-overlay" | "equity-joins" | "flow" | "classifier-hits" | "alerts" | "inferred-dark"
+    ingestChannel: "options" | "nbbo" | "equities" | "equity-quotes" | "equity-candles" | "equity-overlay" | "equity-joins" | "flow" | "classifier-hits" | "alerts" | "inferred-dark"
   ) => {
+    const watermark = await liveState.ingest(ingestChannel, item);
+
     if (
       (ingestChannel === "options" ||
         ingestChannel === "nbbo" ||
         ingestChannel === "equities" ||
+        ingestChannel === "equity-quotes" ||
         ingestChannel === "flow") &&
       !isLiveItemFresh(ingestChannel, item)
     ) {
       return;
     }
 
-    const watermark = await liveState.ingest(ingestChannel, item);
     const matchingSubscriptions =
       subscription.channel === "options" || subscription.channel === "flow"
         ? [...subscriptionDefinitions.entries()].filter(([, candidate]) => candidate.channel === subscription.channel)
@@ -1088,6 +1091,7 @@ const run = async () => {
       try {
         const payload = EquityQuoteSchema.parse(equityQuoteSubscription.decode(msg));
         broadcast(equityQuoteSockets, { type: "equity-quote", payload });
+        await fanoutLive({ channel: "equity-quotes" }, payload, "equity-quotes");
         msg.ack();
       } catch (error) {
         logger.error("failed to process equity quote", {
@@ -1380,6 +1384,12 @@ const run = async () => {
         return jsonResponse(buildHistoryResponse(data, (item) => ({ ts: item.ts, seq: item.seq })));
       }
 
+      if (req.method === "GET" && url.pathname === "/history/equity-quotes") {
+        const { beforeTs, beforeSeq, limit } = parseBeforeParams(url);
+        const data = await fetchEquityQuotesBefore(clickhouse, beforeTs, beforeSeq, limit);
+        return jsonResponse(buildHistoryResponse(data, (item) => ({ ts: item.ts, seq: item.seq })));
+      }
+
       if (req.method === "GET" && url.pathname === "/history/equity-joins") {
         const { beforeTs, beforeSeq, limit } = parseBeforeParams(url);
         const data = await fetchEquityPrintJoinsBefore(clickhouse, beforeTs, beforeSeq, limit);
diff --git a/services/api/src/live.ts b/services/api/src/live.ts
index df916fb..f10cb33 100644
--- a/services/api/src/live.ts
+++ b/services/api/src/live.ts
@@ -5,6 +5,7 @@ import {
   fetchRecentEquityCandles,
   fetchRecentEquityPrintJoins,
   fetchRecentEquityPrints,
+  fetchRecentEquityQuotes,
   fetchRecentFlowPackets,
   fetchRecentInferredDark,
   fetchRecentOptionNBBO,
@@ -18,6 +19,7 @@ import {
   EquityCandleSchema,
   EquityPrintJoinSchema,
   EquityPrintSchema,
+  EquityQuoteSchema,
   FeedSnapshot,
   FlowPacketSchema,
   InferredDarkEventSchema,
@@ -44,6 +46,7 @@ const GENERIC_LIMIT_ENV_KEYS: Record<LiveGenericChannel, string> = {
   options: "LIVE_LIMIT_OPTIONS",
   nbbo: "LIVE_LIMIT_NBBO",
   equities: "LIVE_LIMIT_EQUITIES",
+  "equity-quotes": "LIVE_LIMIT_EQUITY_QUOTES",
   "equity-joins": "LIVE_LIMIT_EQUITY_JOINS",
   flow: "LIVE_LIMIT_FLOW",
   "classifier-hits": "LIVE_LIMIT_CLASSIFIER_HITS",
@@ -69,6 +72,7 @@ export const LIVE_FRESHNESS_THRESHOLDS: Partial<Record<LiveGenericChannel, numbe
   options: 15_000,
   nbbo: 15_000,
   equities: 15_000,
+  "equity-quotes": 15_000,
   flow: 30_000
 };
 
@@ -102,6 +106,7 @@ export const resolveGenericLiveLimits = (env: NodeJS.ProcessEnv = process.env):
   options: parseGenericLimit(env, "options", DEFAULT_GENERIC_LIMIT),
   nbbo: parseGenericLimit(env, "nbbo", DEFAULT_GENERIC_LIMIT),
   equities: parseGenericLimit(env, "equities", DEFAULT_GENERIC_LIMIT),
+  "equity-quotes": parseGenericLimit(env, "equity-quotes", DEFAULT_GENERIC_LIMIT),
   "equity-joins": parseGenericLimit(env, "equity-joins", DEFAULT_GENERIC_LIMIT),
   flow: parseGenericLimit(env, "flow", DEFAULT_GENERIC_LIMIT),
   "classifier-hits": parseGenericLimit(env, "classifier-hits", DEFAULT_GENERIC_LIMIT),
@@ -154,6 +159,14 @@ const getGenericConfig = (limits: GenericLiveLimits): {
     cursor: (item) => ({ ts: item.ts, seq: item.seq }),
     fetchRecent: fetchRecentEquityPrints
   },
+  "equity-quotes": {
+    redisKey: "live:equity-quotes",
+    cursorField: "equity-quotes",
+    limit: limits["equity-quotes"],
+    parse: (value) => EquityQuoteSchema.parse(value),
+    cursor: (item) => ({ ts: item.ts, seq: item.seq }),
+    fetchRecent: fetchRecentEquityQuotes
+  },
   "equity-joins": {
     redisKey: "live:equity-joins",
     cursorField: "equity-joins",
@@ -251,6 +264,7 @@ const extractFreshnessTs = (channel: LiveGenericChannel, item: any): number | nu
     case "options":
     case "nbbo":
     case "equities":
+    case "equity-quotes":
       return typeof item.ts === "number" ? item.ts : null;
     case "flow":
       return typeof item.source_ts === "number" ? item.source_ts : null;
@@ -275,19 +289,6 @@ export const isLiveItemFresh = (
   return now - ts <= thresholdMs;
 };
 
-const filterFreshGenericItems = <T>(
-  channel: LiveGenericChannel,
-  items: T[],
-  now = Date.now()
-): T[] => {
-  const thresholdMs = LIVE_FRESHNESS_THRESHOLDS[channel];
-  if (!thresholdMs) {
-    return items;
-  }
-
-  return items.filter((item) => isLiveItemFresh(channel, item, now));
-};
-
 const nextBeforeForItems = <T>(items: T[], cursorOf: (item: T) => Cursor): Cursor | null => {
   const last = items.at(-1);
   return last ? cursorOf(last) : null;
@@ -396,21 +397,17 @@ export class LiveStateManager {
             undefined,
             storageFilters
           );
-          const freshItems = filterFreshGenericItems("options", items);
           return {
             subscription,
-            items: freshItems,
+            items,
             watermark: items[0] ? { ts: items[0].ts, seq: items[0].seq } : null,
-            next_before: nextBeforeForItems(freshItems, (item) => ({ ts: item.ts, seq: item.seq }))
+            next_before: nextBeforeForItems(items, (item) => ({ ts: item.ts, seq: item.seq }))
           };
         }
 
         const config = this.generic.options;
-        const items = filterFreshGenericItems(
-          "options",
-          (this.genericItems.get("options") ?? []).filter((item) =>
-            matchesOptionPrintFilters(item, subscription.filters)
-          )
+        const items = (this.genericItems.get("options") ?? []).filter((item) =>
+          matchesOptionPrintFilters(item, subscription.filters)
         );
         return {
           subscription,
@@ -421,11 +418,8 @@ export class LiveStateManager {
       }
       case "flow": {
         const config = this.generic.flow;
-        const items = filterFreshGenericItems(
-          "flow",
-          (this.genericItems.get("flow") ?? []).filter((item) =>
-            matchesFlowPacketFilters(item, subscription.filters)
-          )
+        const items = (this.genericItems.get("flow") ?? []).filter((item) =>
+          matchesFlowPacketFilters(item, subscription.filters)
         );
         return {
           subscription,
@@ -464,10 +458,7 @@ export class LiveStateManager {
       }
       default: {
         const config = this.generic[subscription.channel];
-        const items = filterFreshGenericItems(
-          subscription.channel,
-          this.genericItems.get(subscription.channel) ?? []
-        );
+        const items = this.genericItems.get(subscription.channel) ?? [];
         return {
           subscription,
           items,
@@ -513,9 +504,6 @@ export class LiveStateManager {
       default: {
         const config = this.generic[channel];
         const parsed = config.parse(item);
-        if (!isLiveItemFresh(channel, parsed)) {
-          return this.genericCursors.get(config.cursorField) ?? null;
-        }
         const items = this.genericItems.get(channel) ?? [];
         const next = normalizeGenericItems(channel, [parsed, ...items], config);
         this.genericItems.set(channel, next);
diff --git a/services/api/tests/live.test.ts b/services/api/tests/live.test.ts
index 21bcd28..41ad732 100644
--- a/services/api/tests/live.test.ts
+++ b/services/api/tests/live.test.ts
@@ -58,6 +58,7 @@ describe("LiveStateManager", () => {
     expect(limits.options).toBe(777);
     expect(limits.nbbo).toBe(100000);
     expect(limits.flow).toBe(10000);
+    expect(limits["equity-quotes"]).toBe(10000);
     expect(limits.alerts).toBe(10000);
   });
 
@@ -145,6 +146,7 @@ describe("LiveStateManager", () => {
         options: 10000,
         nbbo: 10000,
         equities: 10000,
+        "equity-quotes": 10000,
         "equity-joins": 10000,
         flow: 2,
         "classifier-hits": 10000,
@@ -277,7 +279,7 @@ describe("LiveStateManager", () => {
     expect(flowSnapshot.items).toHaveLength(1);
   });
 
-  it("suppresses stale items from live snapshots while preserving fresh ones", async () => {
+  it("keeps stale persisted items in live snapshots", async () => {
     const manager = new LiveStateManager(makeClickHouse(), null);
     const now = Date.now();
 
@@ -383,16 +385,20 @@ describe("LiveStateManager", () => {
     ]);
 
     expect((optionsSnapshot.items as Array<{ trace_id: string }>).map((item) => item.trace_id)).toEqual([
-      "opt-fresh"
+      "opt-fresh",
+      "opt-stale"
     ]);
     expect((nbboSnapshot.items as Array<{ trace_id: string }>).map((item) => item.trace_id)).toEqual([
-      "nbbo-fresh"
+      "nbbo-fresh",
+      "nbbo-stale"
     ]);
     expect((equitiesSnapshot.items as Array<{ trace_id: string }>).map((item) => item.trace_id)).toEqual([
-      "eq-fresh"
+      "eq-fresh",
+      "eq-stale"
     ]);
     expect((flowSnapshot.items as Array<{ id: string }>).map((item) => item.id)).toEqual([
-      "flow-fresh"
+      "flow-fresh",
+      "flow-stale"
     ]);
   });
 
@@ -476,7 +482,7 @@ describe("LiveStateManager", () => {
     ]);
   });
 
-  it("rejects stale ingest for freshness-gated channels", async () => {
+  it("stores older valid ingest for freshness-gated channels", async () => {
     const manager = new LiveStateManager(makeClickHouse(), null);
     const now = Date.now();
 
@@ -494,7 +500,71 @@ describe("LiveStateManager", () => {
     });
 
     const snapshot = await manager.getSnapshot({ channel: "equities" });
-    expect(snapshot.items).toHaveLength(0);
+    expect(snapshot.items).toHaveLength(1);
+    expect(snapshot.next_before).toEqual({ ts: now - 60_000, seq: 1 });
+  });
+
+  it("hydrates equity quotes from redis", async () => {
+    const redis = makeRedis();
+    const now = Date.now();
+    await redis.lPush(
+      "live:equity-quotes",
+      JSON.stringify({
+        source_ts: now,
+        ingest_ts: now + 1,
+        seq: 1,
+        trace_id: "quote-1",
+        ts: now,
+        underlying_id: "SPY",
+        bid: 450,
+        ask: 450.01
+      })
+    );
+    await redis.hSet("live:cursors", "equity-quotes", JSON.stringify({ ts: now, seq: 1 }));
+
+    const manager = new LiveStateManager(makeClickHouse(), redis as never);
+    await manager.hydrate();
+    const snapshot = await manager.getSnapshot({ channel: "equity-quotes" });
+
+    expect(snapshot.items).toHaveLength(1);
+    expect(snapshot.watermark).toEqual({ ts: now, seq: 1 });
+    expect(snapshot.next_before).toEqual({ ts: now, seq: 1 });
+  });
+
+  it("hydrates equity quotes from clickhouse when redis is empty and persists hot cache", async () => {
+    const redis = makeRedis();
+    const now = Date.now();
+    const clickhouse = {
+      ...makeClickHouse(),
+      query: async ({ query }: { query: string }) => ({
+        async json<T>() {
+          if (query.includes("equity_quotes")) {
+            return [
+              {
+                source_ts: now,
+                ingest_ts: now + 1,
+                seq: 2,
+                trace_id: "quote-2",
+                ts: now,
+                underlying_id: "SPY",
+                bid: 451,
+                ask: 451.01
+              }
+            ] as T;
+          }
+          return [] as T;
+        }
+      })
+    } as ClickHouseClient;
+
+    const manager = new LiveStateManager(clickhouse, redis as never);
+    await manager.hydrate();
+    const snapshot = await manager.getSnapshot({ channel: "equity-quotes" });
+    const persisted = await redis.lRange("live:equity-quotes", 0, 10);
+
+    expect(snapshot.items).toHaveLength(1);
+    expect(snapshot.watermark).toEqual({ ts: now, seq: 2 });
+    expect(persisted).toHaveLength(1);
   });
 
   it("exposes freshness helper for event fanout gating", () => {