Signal was wrong: the rationale called TSM bullish off a Samsung profit headline, but the stock fell about 2.6% from entry to exit, and the headline itself notes "Chips Retreat," so the bullish read of the article is questionable. Timing wasn't the problem — price was already down 0.81% from prior close at decision time, so the long was buying a dip rather than chasing a move, but the dip kept going. On exit, the trade closed near the worst unrealized (-3.37% vs. the -2.56% realized) and the best available was only +0.46%, so there was essentially nothing to capture; the dominant factor is a wrong directional call on a signal that was weak to begin with.
📖 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 ≥ 70.