■ 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 — 8.5 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)BB 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 ≈ 49.8% · 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
1.00
—
5
0.0020
—
0.00
-0.00
1.00
—
5.5
0.0044
0.00
0.00
-0.00
1.00
0.00
6
0.0102
0.00
-0.00
-0.00
0.99
-0.00
6.5
0.0259
0.00
-0.00
-0.01
0.97
-0.00
7
0.0709
0.00
-0.00
-0.03
0.92
-0.01
7.5
0.1917
0.00
-0.01
-0.08
0.77
-0.01
8
0.4098
0.00
-0.01
-0.23
0.52
-0.01
8.5
0.5317
0.01
-0.01
-0.48
0.29
-0.01
9
0.4298
0.01
-0.01
-0.72
0.14
-0.01
9.5
0.2680
0.00
-0.01
-0.86
0.07
-0.01
10
0.1498
0.00
-0.01
-0.94
0.04
-0.00
10.5
0.0805
0.00
-0.00
-0.97
0.02
-0.00
11
0.0429
0.00
-0.00
-0.99
0.01
-0.00
11.5
0.0230
0.00
-0.00
-1.00
0.01
-0.00
12
0.0124
0.00
-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 26 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.