🚨 Alert #155 Fri Jul-17 17:30:13
Meta Platforms confirmed it is developing a cloud computing service called Meta Compute, causing its stock to surge 15% as it prepares to compete with Amazon, Microsoft, and Alphabet.
🎯 Tickers & verdicts
🧭 Decisions
| strategy | ticker | action | side | rationale |
|---|---|---|---|---|
| S1 | META | ○ skip | — | verdict PRICED — Δ prev close -3.14% · Δ 30m +1.71% · px 643.69 (prev 664.54) → close +0.52% |
| S2 | - | ○ skip | — | no counterparty in universe |
| S3 | AMZN | ● enter | ▼ short | verdict FRESH, direction bearish -> sell AMZN (product: Meta Platforms confirmed it is developing a cloud computing service called Meta Compute, causing its stock to surge 15% as it prepares to compete with Amazon, Microsoft, and Alphabet.) |
| S4 | META | ○ skip | — | overnight drift: buy META at close, exit next close (product: Meta Platforms confirmed it is developing a cloud computing service called Meta Compute, causing its stock to surge 15% as it prepares to compete with Amazon, Microsoft, and Alphabet.) [skipped at close: duplicate — already holding S4 buy META exiting 2026-07-20] |
📈 Trades
| strategy | ticker | side | qty | entry | exit | P&L $ | status |
|---|---|---|---|---|---|---|---|
| S3 | AMZN | ▼ short | 4 | 248.11 | 247.79 | +1.28 | closed |
Retrospectives
| ticker | mfe | mae | reflection |
|---|---|---|---|
| AMZN S3 | +0.59% | -0.47% | Entry vs. outcome: The thesis was second-order — bearish AMZN based on a competitor's announcement — and the market barely cared: price moved less than ±0.6% while open and the +$1.28 P&L is pure noise, not a validated edge. The "FRESH" verdict fired on a headline whose actual impact on AMZN was speculative (a rival announcing a product years from revenue is not a sell signal for a cloud incumbent), so the trade was effectively a coin flip that landed flat. Improvement: Tighten the entry rule so second-order/competitor news requires a higher bar than FRESH alone — e.g., only trade the indirectly-affected ticker if it shows a confirming price/volume reaction (say, ≥1% move in the thesis direction within the first 30 minutes); otherwise trade the directly-named ticker (META) or skip. Alternatively, add a minimum expected-move threshold to the verdict so trades with sub-1% realized ranges like this one never get opened. |
📖 Glossary
- S1 primary — trades the alert's primary ticker in the direction the article itself indicates; exits at the same day's close.
- S2 counterparty — trades the inferred counterparty ticker (weakest signal, LLM-inferred sympathy); exits at the same day's close.
- S3 peer — trades an inferred peer ticker (also LLM-inferred sympathy); exits at the same day's close.
- S4 overnight — holds the primary ticker from today's close to the NEXT day's close.
- Verdicts are decided top-to-bottom, first match wins; REPRICING is also the fallback when nothing else matches (2026-08-08 #220).
- UNKNOWN — a needed price input (move since close or move in the last 30m) is missing.
- PRICED — |move since previous close| ≥ 2.0%: already reflected in price.
- REPRICING — |move in the last 30m| ≥ 0.5%: the tape is actively moving on it. Also covers a quieter move — |move since previous close| in [1.0, 2.0) with a quiet last-30m tape: still developing, not yet priced.
- FRESH — |move since previous close| < 1.0%: a genuinely new move.
- materiality — how market-moving the story was judged, 0-100 — alerts require materiality ≥ 60.