Steel Dynamics Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Steel Dynamics Inc. at $229.99: open interest within 90 days was 4,881 call and 2,991 put contracts, a put/call ratio of 0.61; the day's volume was 167 calls and 97 puts (0.58). The most call open interest sits at the $290.00 strike (1,283 contracts) and the most put open interest at $250.00 (520). The at-the-money straddle for 16 October 2026, 23 days out, was priced at 8.2% of spot. For 16 October 2026, implied volatility was 40.6% at the put 5% below spot and 37.9% at the call 5% above, +2.7 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $290.00 | 1,283 |
| Puts | $250.00 | 520 |
The strike with the most open interest on each side, across expiries within 90 days.
Source
CBOE delayed quotes for STLD, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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