■ 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 — 155 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)SPCX open contracts per strike for Fri, Oct 23.
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, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 79.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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, Oct 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-0.42
138
0.0204
0.07
-0.42
-0.29
0.69
-0.43
139
0.0212
0.07
-0.43
-0.31
0.67
-0.44
140
0.0219
0.07
-0.44
-0.33
0.65
-0.45
141
0.0226
0.07
-0.45
-0.36
0.62
-0.46
142
0.0232
0.08
-0.46
-0.38
0.60
-0.46
143
0.0237
0.08
-0.47
-0.40
0.57
-0.47
144
0.0242
0.08
-0.47
-0.43
0.55
-0.47
145
0.0246
0.08
-0.47
-0.45
0.53
-0.47
146
0.0249
0.08
-0.47
-0.48
0.50
-0.47
147
0.0250
0.08
-0.47
-0.50
0.47
-0.46
148
0.0251
0.08
-0.47
-0.53
0.45
-0.46
149
0.0251
0.08
-0.46
-0.55
0.42
-0.45
150
0.0250
0.08
-0.45
-0.58
0.36
-0.42
152.5
0.0242
0.08
-0.43
-0.64
0.31
-0.39
155
0.0229
0.07
-0.39
-0.70
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 57 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.