- SYM has moved in the same direction as TSM's earnings reaction in 86% of 14 tracked reports, with a median same-day move of ±3.8% — ×1.3 its normal daily move.
- EarningsWatcher tracks 2 quality-gated sympathy peers for TSM: SYM, SLB.
- When TSM's earnings reaction is positive, SYM's median same-day move is +3.3%; when negative, -4.2%.
All measured sympathy peers for TSM
Every peer below passed the gates — enough events, direction consistency well above a coin flip, and a move meaningfully bigger than its normal day. Nobody else publishes this measurement; it exists because EarningsWatcher computes it from every TSM report, with the peer's own earnings days and heavy market days excluded.
| Peer | Same direction | Typical move | vs normal day | Sympathy score |
|---|---|---|---|---|
| SYM | 86% of 14 | ±3.8% | ×1.3 | ▮▮ |
| SLB | ▮▮% of ▮▮ | ±▮.▮% | ×▮.▮ | ▮▮ |
- the 0–100 sympathy score for each pair (direction consistency + amplification + correlation, discounted for small samples)
- each peer's live ATM straddle with an honest 1-day breakeven — the move it must beat by the reaction-day close
- historical beat rates from real option prices: how often past TSM reports beat that same hurdle
- direction splits, gap-vs-peak timing, and an event-by-event history for every pair
- the week's best pairs delivered as P0/P1/P2 sympathy picks
Why trade the peer instead of TSM itself?
Options on TSM are expensive into the print — the expected move is priced in, and implied volatility collapses the moment results land. SYM has no event that day: its options are priced for a normal session, and measured across our pairs the median change in peer IV through a reporter's print is roughly zero. The sympathy trade turns TSM's report into a position with a normal-day hurdle instead of an event-premium hurdle. New to the concept? Read what a sympathy play is, then see this week's live boardor the TSM implied-move page.
Frequently asked questions
Which stocks move when TSM reports earnings?
Measured over up to ten years of TSM's earnings days, the strongest sympathy peer is SYM: same direction as TSM's reaction in 86% of 14 tracked reports, median same-day move ±3.8%. Other quality-gated peers: SLB — their full statistics are on the member board.
Are stocks like TSM worth watching on its earnings day?
That is exactly what a sympathy play is: TSM's report reprices companies with the same customers and economics, so 'stocks like TSM' often move the same day — without an earnings event of their own. The size is usually smaller than TSM's own move (SYM: ±3.8% vs a normal day ×1.3), but the peer's options carry no event premium, so there is no IV crush to pay.
Is SYM correlated with TSM?
On TSM's earnings days specifically, yes, historically: 86% same-direction over 14 events after excluding SYM's own earnings window and heavy market days. General day-to-day correlation is a different (weaker) question — the earnings-day link is the tradeable one.
What is a sympathy stock?
A sympathy stock moves on another company's news rather than its own — here, SYM reacting to TSM's earnings. EarningsWatcher measures these relationships event by event and gates them for sample size, direction consistency and amplification; see the full guide to sympathy plays.