■ 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 — 945 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)COST open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 24.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.66
-0.26
915
0.0036
1.54
-0.27
-0.35
0.64
-0.26
920
0.0036
1.57
-0.28
-0.37
0.62
-0.27
925
0.0037
1.59
-0.28
-0.39
0.60
-0.27
930
0.0038
1.62
-0.28
-0.41
0.58
-0.27
935
0.0038
1.64
-0.29
-0.43
0.56
-0.28
940
0.0038
1.65
-0.29
-0.45
0.55
-0.28
945
0.0039
1.66
-0.29
-0.47
0.53
-0.28
950
0.0039
1.67
-0.29
-0.49
0.51
-0.28
955
0.0039
1.67
-0.29
-0.51
0.49
-0.28
960
0.0039
1.67
-0.29
-0.53
0.47
-0.28
965
0.0039
1.67
-0.29
-0.55
0.45
-0.28
970
0.0039
1.66
-0.29
-0.57
0.43
-0.27
975
0.0039
1.65
-0.29
-0.59
0.41
-0.27
980
0.0038
1.63
-0.29
-0.61
0.39
-0.27
985
0.0038
1.61
-0.28
-0.63
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.