3M Co. options tape
Read from CBOE's delayed chain on 23 September 2026, with 3M Co. at $169.30: open interest within 90 days was 31,057 call and 15,829 put contracts, a put/call ratio of 0.51; the day's volume was 2,824 calls and 1,480 puts (0.52). The most call open interest sits at the $175.00 strike (7,432 contracts) and the most put open interest at $160.00 (4,047). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 2.3% of spot. For 16 October 2026, implied volatility was 26.9% at the put 5% below spot and 22.9% at the call 5% above, +4.0 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $175.00 | 7,432 |
| Puts | $160.00 | 4,047 |
The strike with the most open interest on each side, across expiries within 90 days.
Open interest built since 22 September 2026
| Contract | Open interest now | Change |
|---|---|---|
| 20 November 2026 call at $185.00 | 4,120 | +403 |
| 20 November 2026 call at $175.00 | 5,743 | +361 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for MMM, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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