United Microelectronics (New) (UMC) options traded 674 contracts on October 23, 2026 (280 calls and 394 puts, a put/call ratio of 1.41), compared with a 30-day average of 16,818. Options price a move of about ±3.8% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 58.5%
Implied move by the nearest expiration: ±3.8%
Option volume: 674 contracts (280 calls, 394 puts); 30-day average 16,818

Data as of October 23, 2026.

UMC Option Breakdown

A breakdown of key statistics for each option expiration listed for UMC. View implied volatility, volatility skew, volume, open interest, straddle premiums, and liquidity -- including bid/ask spread and NBBO bid/ask sizes. Includes links to the option chain, as well as numerous detailed charts.

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