STM · Options

STMicroelectronics N.V. Common Stock (STM) options chain & liquidity

Term structure, skew and the liquidity of the published chain.

$56.18

Volatility term structureATM IV by stored expiration. Earnings-containing expirations are marked; missing IV stays unavailable. Expiry spacing reflects DTE, not equal calendar spacing.

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2026-10-23ATM IV 51.07%16 DTE · ATM strike $56.00 · No stored earnings markerUpdate time unavailable

Event / reference markers

Earnings expiry 2026-10-30: 23

Exact data table

Volatility term structure · full stored dataset, independent of graph range/toggles
ATM IV (%)	Context	Updated
51.07%	16 DTE · ATM strike $56.00 · No stored earnings marker	Update time unavailable
69.07%	23 DTE · ATM strike $56.00 · Contains earnings	Update time unavailable
66.795%	30 DTE · ATM strike $56.00 · No stored earnings marker	Update time unavailable
71.45%	37 DTE · ATM strike $57.00 · No stored earnings marker	Update time unavailable

Liquidity classification: ACCEPTABLE
Median bid-ask width: 19.5%
25-delta put IV: 66.0%
25-delta call IV: 70.5%
Downside skew: -3.1%

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Data provenance

Figures are from published, reviewed research as of Oct 7, 2026, 4:00 PM EDT. Modelled option premiums use Black-Scholes with the published at-the-money implied volatility and are labelled as modelled, not as live quotes.