■ 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 — 25 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)GEN 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
0.94
-0.00
21
0.0220
0.01
-0.01
-0.06
0.92
-0.01
22
0.0294
0.02
-0.01
-0.08
0.89
-0.01
23
0.0394
0.02
-0.01
-0.11
0.86
-0.01
24
0.0526
0.03
-0.01
-0.15
0.80
-0.01
25
0.0694
0.03
-0.01
-0.20
0.73
-0.01
26
0.0888
0.04
-0.01
-0.28
0.63
-0.01
27
0.1072
0.04
-0.01
-0.37
0.52
-0.01
28
0.1191
0.04
-0.01
-0.49
0.40
-0.01
29
0.1193
0.04
-0.01
-0.61
0.29
-0.01
30
0.1074
0.04
-0.01
-0.73
0.20
-0.01
31
0.0882
0.03
-0.01
-0.83
0.14
-0.01
32
0.0677
0.03
-0.01
-0.90
0.09
-0.00
33
0.0496
0.02
-0.01
-0.96
0.06
-0.00
34
0.0354
0.01
-0.00
-0.99
0.04
-0.00
35
0.0248
0.01
-0.00
-1.00
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.