ITW· Illinois Tool Works
Open interest · contracts by strike
Spot
268.2
Max Pain
270
Call OI
3,565
Put OI
487
P/C ratio
0.14
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 270
Spot 268.2
300
413
290
429
280
2,531
Call OI
270
137
Max pain
260
250
240
124
Put OI
230
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
ITW 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.