PSX· Phillips 66
Open interest · contracts by strike
Spot
255.7
Max Pain
240
Call OI
5,869
Put OI
2,719
P/C ratio
0.46
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 240
Spot 255.7
292.5
290
130
287.5
285
287
282.5
280
496
277.5
275
141
272.5
270
859
267.5
92
265
135
262.5
260
139
1,023
Call OI
257.5
138
255
46
173
252.5
70
42
250
94
389
247.5
74
43
245
342
242.5
84
50
240
1,036
625
Put OI
237.5
87
235
170
232.5
230
227
503
227.5
225
86
222.5
220
193
640
217.5
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
PSX 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.