Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 135 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)MSTR open contracts per strike for Fri, Nov 20.
Open-interest change · 2026-10-23 → 2026-10-26
Net contracts opened (up, green) or closed (down, red) per strike since the previous snapshot: where the walls are building and where they’re unwinding. Only strikes observed on both days are compared; 4 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 200 +809 · 150 +334 · 100 +264 · 160 +230
Volume by strike · Fri, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 74.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.73
-0.19
128
0.0120
0.12
-0.19
-0.27
0.71
-0.19
129
0.0123
0.12
-0.20
-0.29
0.70
-0.20
130
0.0126
0.13
-0.20
-0.30
0.69
-0.20
131
0.0128
0.13
-0.20
-0.31
0.66
-0.21
133
0.0133
0.13
-0.21
-0.34
0.63
-0.21
135
0.0138
0.14
-0.21
-0.37
0.57
-0.22
139
0.0144
0.14
-0.22
-0.43
0.56
-0.22
140
0.0145
0.14
-0.22
-0.44
0.49
-0.22
145
0.0147
0.14
-0.23
-0.52
0.47
-0.22
146
0.0147
0.14
-0.22
-0.53
0.46
-0.22
147
0.0147
0.14
-0.22
-0.54
0.43
-0.22
149
0.0145
0.14
-0.22
-0.57
0.42
-0.22
150
0.0144
0.14
-0.22
-0.58
0.38
-0.21
152.5
0.0141
0.14
-0.21
-0.62
0.35
-0.21
155
0.0137
0.14
-0.21
-0.65
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain history — nearest expiry vs price
— max pain (nearest expiry)- - delayed closeOne point per snapshot day since 2026-07-28; unobserved days are gaps, not guesses.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.