BRK-B· Berkshire Hathaway
Open interest · contracts by strike
Spot
515
Max Pain
487.5
Call OI
12,832
Put OI
14,900
P/C ratio
1.16
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 487.5
Spot 515
590
580
404
570
964
560
1,067
550
2,385
540
1,992
530
2,759
Call OI
522.5
517.5
590
512.5
522
507.5
223
446
502.5
302
497.5
274
492.5
215
487.5
411
Max pain
482.5
477.5
470
3,477
318
460
2,929
689
450
5,156
241
Put OI
440
1,703
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.
History
BRK-B open interest, night by night.
Total call and put contracts held on each recorded session — the level the strike profile above is a snapshot of.
10 Jun → 14 Sep
OI totals over time
Contracts outstanding, summed over the whole captured chain — every listed expiry and strike, wider than the strike band and single expiry shown in the profile above.
call OI, contractsput OI, contracts
One reading per session, captured nightly after the close, 10 Jun → 14 Sep, over CBOE delayed (~15-min) chains, computed across the full listed chain. Gaps are weekends, holidays and sessions a capture missed; any reading can be absent on a session that was captured, and the series is broken rather than drawn through it.