diff --git a/workers/outcomeAutonomyWorker.js b/workers/outcomeAutonomyWorker.js
index c01c2de..88c2e0b 100644
--- a/workers/outcomeAutonomyWorker.js
+++ b/workers/outcomeAutonomyWorker.js
@@ -20,6 +20,21 @@ function httpGet(url) {
 }
 
 const MAX_OUTCOME_ATTEMPTS = 5;
+// req.setTimeout only covers socket inactivity. A response that opens and then
+// stalls, or a socket that never emits anything at all, leaves the promise
+// pending forever and the whole loop with it. This worker sat "Up 3 days" and
+// silent while predictions it could resolve in 400ms went unscored, which is the
+// third time an unbounded await in a long lived loop has quietly stopped a
+// worker. This is the bound that cannot be skipped.
+const HISTORY_HARD_TIMEOUT = 30000;
+
+function withTimeout(promise, ms, label) {
+  let timer;
+  const expired = new Promise((_, reject) => {
+    timer = setTimeout(() => reject(new Error(`${label} exceeded ${ms}ms`)), ms);
+  });
+  return Promise.race([promise, expired]).finally(() => clearTimeout(timer));
+}
 // how far past the horizon we keep trying before accepting there is no data
 const UNRESOLVABLE_GRACE_DAYS = 3;
 
@@ -62,10 +77,20 @@ async function resolveAutonomyOutcomes({ intelligencePath, workerId = `outcome-$
       // strictly before today, so the exit session has closed and published
       return horizonDate < today;
     }).slice(0, 25);
+
+    if (predictions.length) {
+      console.log(`[autonomy-outcome] ${workerId} scoring ${predictions.length} matured predictions`
+        + ` (${candidates.length} candidates)`);
+    }
     for (const prediction of predictions) {
       try {
-        if (!cache.has(prediction.instrument)) cache.set(prediction.instrument, await history(prediction.instrument));
-        if (!cache.has('SPY')) cache.set('SPY', await history('SPY'));
+        if (!cache.has(prediction.instrument)) {
+          cache.set(prediction.instrument, await withTimeout(history(prediction.instrument),
+            HISTORY_HARD_TIMEOUT, `market data for ${prediction.instrument}`));
+        }
+        if (!cache.has('SPY')) {
+          cache.set('SPY', await withTimeout(history('SPY'), HISTORY_HARD_TIMEOUT, 'market data for SPY'));
+        }
         const result = calculateOutcome(prediction, cache.get(prediction.instrument), cache.get('SPY'));
         if (!result) {
           // A null here almost always means the exit bar has not published yet, not