MRSH· Marsh McLennan
Open interest · contracts by strike
Spot
176.9
Max Pain
190
Call OI
1,613
Put OI
1,399
P/C ratio
0.87
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 190
Spot 176.9
200
107
708
Call OI
195
279
190
407
343
Max pain
185
438
263
Put OI
180
194
175
44
170
203
165
160
155
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
MRSH 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 → 11 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 → 11 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.