Mastercard Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Mastercard Inc. at $556.81: open interest within 90 days was 25,304 call and 29,108 put contracts, a put/call ratio of 1.15; the day's volume was 3,790 calls and 4,300 puts (1.13). The most call open interest sits at the $600.00 strike (3,071 contracts) and the most put open interest at $540.00 (2,861). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 1.7% of spot. For 16 October 2026, implied volatility was 21.6% at the put 5% below spot and 20.9% at the call 5% above, +0.8 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $600.00 | 3,071 |
| Puts | $540.00 | 2,861 |
The strike with the most open interest on each side, across expiries within 90 days.
Strikes where the day's volume was at least twice the open interest
| Contract | Volume | Open interest before | Premium traded |
|---|---|---|---|
| 25 September 2026 call at $567.50 | 332 | 56 | $48,140 |
| 2 October 2026 put at $535.00 | 282 | 93 | $39,480 |
Volume of at least 200 contracts and at least twice the open interest, with at least $25,000 of premium at the mid; contracts expiring the same day are left out. Premium is mid price times volume times 100.
Source
CBOE delayed quotes for MA, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
The same record on your computer
GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.