BLK· BlackRock
Open interest · contracts by strike
Spot
1,065.6
Max Pain
1,100
Call OI
1,931
Put OI
1,843
P/C ratio
0.95
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 1,100
Spot 1,065.6
1,225
1,215
1,205
147
1,195
1,185
1,175
1,167.5
1,162.5
1,157.5
1,150
26
37
1,140
497
Call OI
1,130
77
24
1,120
322
222
Put OI
1,112.5
1,107.5
1,100
277
315
Max pain
1,090
73
1,080
112
143
1,070
85
138
1,060
193
77
1,050
1,040
153
1,030
151
283
1,010
31
995
79
985
970
34
950
35
930
129
910
28
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
BLK 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.