■ 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 — 96 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)W open contracts per strike for Fri, Aug 28.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Aug 28
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 28
— call IV— put IVATM ≈ 66.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 28
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, Aug 28
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.95
-0.08
98
0.0217
0.01
-0.08
-0.04
0.93
-0.13
99
0.0310
0.01
-0.13
-0.07
0.90
-0.20
100
0.0429
0.01
-0.20
-0.10
0.85
-0.32
101
0.0571
0.01
-0.32
-0.15
0.79
-0.47
102
0.0728
0.02
-0.47
-0.21
0.71
-0.69
103
0.0888
0.02
-0.69
-0.29
0.62
-0.99
104
0.1022
0.02
-0.99
-0.38
0.52
-1.23
105
0.1084
0.02
-1.23
-0.48
0.41
-1.06
106
0.1043
0.02
-1.06
-0.59
0.32
-0.77
107
0.0925
0.02
-0.77
-0.68
0.24
-0.56
108
0.0780
0.02
-0.56
-0.76
0.18
-0.40
109
0.0637
0.01
-0.41
-0.82
0.14
-0.29
110
0.0508
0.01
-0.29
-0.87
0.10
-0.20
111
0.0397
0.01
-0.21
-0.91
0.07
-0.14
112
0.0304
0.01
-0.15
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 50 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 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.