■ 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 — 29 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)OKLO 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 ≈ 79.8% · 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
0.96
-0.03
24
0.0340
0.00
-0.03
-0.04
0.95
-0.04
24.5
0.0482
0.00
-0.04
-0.05
0.93
-0.06
25
0.0679
0.00
-0.06
-0.07
0.89
-0.08
25.5
0.0942
0.00
-0.08
-0.11
0.84
-0.11
26
0.1277
0.01
-0.11
-0.16
0.78
-0.14
26.5
0.1664
0.01
-0.14
-0.23
0.69
-0.17
27
0.2048
0.01
-0.17
-0.32
0.58
-0.19
27.5
0.2329
0.01
-0.19
-0.42
0.46
-0.19
28
0.2403
0.01
-0.19
-0.55
0.34
-0.17
28.5
0.2236
0.01
-0.17
-0.66
0.25
-0.14
29
0.1896
0.01
-0.14
-0.76
0.17
-0.10
29.5
0.1496
0.01
-0.10
-0.84
0.12
-0.07
30
0.1127
0.00
-0.07
-0.89
0.08
-0.05
30.5
0.0827
0.00
-0.05
-0.93
0.06
-0.04
31
0.0600
0.00
-0.03
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 56 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.