VST· Vistra Corp.
Open interest · contracts by strike
Spot
141.4
Max Pain
150
Call OI
18,611
Put OI
34,643
P/C ratio
1.86
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 150
Spot 141.4
162.5
295
160
968
4,337
Call OI
157.5
155
654
3,151
152.5
426
150
6,731
3,890
Put OI
149
474
148
147
146
304
711
145
4,559
2,229
144
143
142
289
141
140
4,288
1,545
139
138
137
136
135
3,728
532
134
133
132
131
130
4,532
129
128
281
127
126
125
5,466
124
302
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
VST 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.