Options market record
UMC options flowcalls and puts bought each day.
On Oct 5, 2026, traders bought 32.92K UMC call contracts ($16.5M) and 1.22K put contracts ($154.6K). Calls were — and puts were — their respective 20-day medians. The underlying closed at $24.02 and 30-day implied volatility was 62.5%. On the call-buy top 10 on 6 of 473 trading days since Nov 11, 2024.
Each point is one trading day since Nov 11, 2024. Latest rankings
Daily contracts bought
Call contracts: min 0, max 92.16K, latest 32.92K. Put contracts: min 0, max 18.79K, latest 1.22K.
30-day implied volatility
30-day IV: min 11.8%, max 173.4%, latest 62.5%.
Days in a top-10 list
Ranked by contracts bought today compared with the stock's own median over the previous 20 trading days.
| Date | Call-buy rank | Put-buy rank | Call vs normal | Put vs normal |
|---|---|---|---|---|
| Sep 9, 2026 | 9 | — | 5.0× | — |
| Aug 11, 2026 | 1 | — | 28.3× | — |
| Jul 16, 2026 | 1 | — | 24.9× | 2.1× |
| Jul 7, 2026 | 3 | — | 16.0× | — |
| Jun 18, 2026 | 3 | — | 22.1× | — |
| May 5, 2026 | 4 | — | 10.9× | — |
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