■ 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 — 530 — is the max pain price.
Open interest by strike · Mon, Nov 2
■ calls (up)■ puts (down)MSFT open contracts per strike for Mon, Nov 2.
Open-interest change · 2026-10-28 → 2026-10-29
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; 7 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 545 +1K · 530 +903 · 550 +732 · 475 +577
Volume by strike · Mon, Nov 2
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Nov 2
— call IV— put IVATM ≈ 24.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Nov 2
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 · Mon, Nov 2
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.89
-0.31
512.5
0.0123
0.10
-0.32
-0.11
0.86
-0.38
515
0.0150
0.13
-0.38
-0.14
0.82
-0.45
517.5
0.0179
0.15
-0.46
-0.18
0.78
-0.53
520
0.0209
0.17
-0.53
-0.22
0.72
-0.60
522.5
0.0236
0.19
-0.61
-0.28
0.66
-0.67
525
0.0259
0.21
-0.67
-0.34
0.59
-0.71
527.5
0.0274
0.22
-0.72
-0.41
0.52
-0.73
530
0.0282
0.22
-0.74
-0.48
0.45
-0.73
532.5
0.0281
0.22
-0.73
-0.55
0.38
-0.69
535
0.0272
0.21
-0.69
-0.62
0.32
-0.64
537.5
0.0256
0.20
-0.63
-0.68
0.26
-0.56
540
0.0232
0.18
-0.56
-0.75
0.20
-0.48
542.5
0.0204
0.16
-0.47
-0.80
0.15
-0.39
545
0.0173
0.14
-0.39
-0.85
0.12
-0.32
547.5
0.0142
0.11
-0.31
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 52 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.