STM call volume above normal and directionally bullish
STM saw outsized, call-skewed options activity on 2026-06-02, with 2,353 total contracts and a put/call ratio of 0.04.
STM recorded heavy, directionally bullish options flow on 2026-06-02: total option volume was 2,353 — 2,268 calls versus 85 puts (put/call ratio 0.04) — and total premium reached 2,041,145.1. Implied volatility is elevated (average IV 84.54%; 30-day IV 79.58%) and the 30-day expected move is ±7.77% (expected upper 85.29, lower 72.99; expected_move_price 6.15). Notable active contracts were June 18 calls at the 70 strike (846 contracts, total premium 904,793) and 80 strike (698 contracts, total premium 350,495), plus a 70 strike Oct 16 call (201 contracts, total premium 384,910). Equity was at 79.33, up 10.31 (14.94%) on volume 3,965,324. Earnings date: 2026-07-23. Public headlines that day referenced rising data‑center revenue and a potential fab expansion.