Desk Notes: Building a Watchlist That Survives AMC Bursts

From the public realtime drawing set:

AMC bursts fail watchlists in predictable ways:

• Entire list re-renders on each tick
• Stale closures overwrite newer quotes
• Skeleton states flash because suspense boundaries are too coarse

Hardening

1. Per-row subscriptions with stable keys
2. Conflate to animation frames
3. Keep last-good quote on screen during reconnect
4. Prefetch call metadata (4:30pm ET) so the panel is not empty at the open of the call

Rehearse with Micron on the calendar and Stock Picks as the practice venue.

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