■ 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 — 103 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)UPS 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 ≈ 27.8% · 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
0.98
-0.02
99
0.0144
0.00
-0.02
-0.02
0.97
-0.03
100
0.0196
0.01
-0.03
-0.03
0.97
-0.03
101
0.0280
0.01
-0.03
-0.03
0.95
-0.04
102
0.0444
0.01
-0.04
-0.05
0.90
-0.08
103
0.0813
0.01
-0.08
-0.10
0.79
-0.15
104
0.1353
0.02
-0.15
-0.21
0.63
-0.22
105
0.1782
0.03
-0.23
-0.37
0.45
-0.24
106
0.1860
0.03
-0.25
-0.56
0.28
-0.20
107
0.1546
0.03
-0.20
-0.73
0.16
-0.13
108
0.1072
0.02
-0.13
-0.85
0.09
-0.08
109
0.0676
0.01
-0.08
-0.92
0.05
-0.05
110
0.0420
0.01
-0.05
-0.95
0.03
-0.03
111
0.0267
0.01
-0.03
-0.97
0.02
-0.02
112
0.0176
0.00
-0.02
-0.98
0.02
-0.02
113
0.0120
0.00
-0.02
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 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.