← journal·2026-09-24
Realtime Architecture: Symbol Sharding Before Earnings Floods
Not financial advice. Verify claims independently.
From the RT/SOFT engineering journal:
Micron (MU) reports fiscal Q4 FY2026 on Wednesday, Sep 30, 2026 after the close, with the call at 4:30pm ET. Company guidance from June pointed to revenue of $50B ± $1B and non-GAAP EPS of $31 ± $1; street chatter into the print sits near $50.6–51.1B / $31.3–31.5. The prior quarter (June 24 print) did $41.5B. The tape will obsess over FY27 Q1 guide, HBM/DRAM tightness, and SK Hynix / Samsung read-across.
Why shard
A single hot symbol can monopolize a fan-out worker. Shard by symbol hash (and a manual hot-set for known events) so MU's print cannot stall SPY quotes.
Minimal RFC shape
- Hot-set override list loaded midday
- Per-shard send queues with conflation
- Global heartbeat lane that never shares the MU worker
Document the drawing; then prove it on a Stock Picks-style load test.
Not financial advice. Verify claims independently.
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