■ 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 — 130 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)SPCX 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 ≈ 66.1% · 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
0.78
-0.24
130
0.0204
0.07
-0.24
-0.23
0.73
-0.27
132
0.0225
0.07
-0.27
-0.27
0.68
-0.29
134
0.0244
0.08
-0.29
-0.32
0.66
-0.30
135
0.0251
0.08
-0.30
-0.35
0.63
-0.31
136
0.0257
0.08
-0.31
-0.37
0.60
-0.31
137
0.0262
0.09
-0.32
-0.40
0.57
-0.32
138
0.0266
0.09
-0.32
-0.43
0.52
-0.33
140
0.0269
0.09
-0.33
-0.48
0.49
-0.33
141
0.0268
0.09
-0.33
-0.51
0.47
-0.33
142
0.0267
0.09
-0.33
-0.53
0.44
-0.33
143
0.0264
0.09
-0.33
-0.56
0.42
-0.32
144
0.0260
0.09
-0.33
-0.58
0.39
-0.32
145
0.0255
0.09
-0.32
-0.61
0.37
-0.32
146
0.0250
0.08
-0.32
-0.63
0.35
-0.31
147
0.0243
0.08
-0.31
-0.66
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 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.