USO· United States Oil Fund
Open interest · contracts by strike
Spot
156.7
Max Pain
153
Call OI
16,174
Put OI
26,907
P/C ratio
1.66
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 153
Spot 156.7
180
1,476
175
2,455
170
1,645
165
3,395
Call OI
160
1,726
159
158
157.5
508
157
707
156
155
1,006
833
154
153
680
709
Max pain
152.5
152
151
150
949
149
148
635
147
586
146
1,614
145
3,126
144
860
143
142
1,044
476
141
546
140
11,555
Put OI
139
138
137
136
135
844
134
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
USO 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.
11 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, 11 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.