UMC · Options

United Microelectronics Corporation (NEW) Common Stock (UMC) options chain & liquidity

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

$23.19

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

Update time unavailable

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2026-10-16ATM IV 55.6%10 DTE · ATM strike $23.00 · No stored earnings markerUpdate time unavailable

Event / reference markers

Earnings expiry 2026-11-20: 45

Exact data table

Volatility term structure · full stored dataset, independent of graph range/toggles
ATM IV (%)	Context	Updated
55.6%	10 DTE · ATM strike $23.00 · No stored earnings marker	Update time unavailable
59.85%	45 DTE · ATM strike $23.00 · Contains earnings	Update time unavailable
56.75%	101 DTE · ATM strike $23.00 · No stored earnings marker	Update time unavailable

Liquidity classification: ACCEPTABLE
Median bid-ask width: 25.1%
25-delta put IV: 56.7%
25-delta call IV: 58.6%
Downside skew: -3.1%

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Data provenance

Figures are from published, reviewed research as of Oct 6, 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.