■ 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 — 37 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)CPER 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 ≈ 27.0% · 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
0.93
-0.01
33
0.0231
0.02
-0.01
-0.07
0.91
-0.01
34
0.0299
0.03
-0.01
-0.09
0.88
-0.01
35
0.0386
0.03
-0.01
-0.12
0.84
-0.01
36
0.0492
0.04
-0.01
-0.16
0.79
-0.01
37
0.0612
0.05
-0.01
-0.21
0.72
-0.01
38
0.0732
0.06
-0.01
-0.28
0.65
-0.01
39
0.0827
0.06
-0.01
-0.36
0.56
-0.01
40
0.0873
0.06
-0.01
-0.45
0.47
-0.01
41
0.0865
0.07
-0.02
-0.54
0.40
-0.01
42
0.0813
0.06
-0.01
-0.62
0.33
-0.01
43
0.0737
0.06
-0.01
-0.69
0.27
-0.01
44
0.0653
0.05
-0.01
-0.75
0.23
-0.01
45
0.0570
0.05
-0.01
-0.80
0.10
-0.01
50
0.0278
0.03
-0.01
-0.93
0.05
-0.01
55
0.0144
0.02
-0.01
-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 23 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.