■ 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 — 22.5 — is the max pain price.
Open interest by strike · Fri, Sep 25
■ calls (up)■ puts (down)CCL open contracts per strike for Fri, Sep 25.
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, Sep 25
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 25
— call IV— put IVATM ≈ 48.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 25
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, Sep 25
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.00
19
0.0152
0.00
-0.00
-0.01
0.99
-0.01
19.5
0.0248
0.00
-0.01
-0.01
0.98
-0.01
20
0.0432
0.00
-0.01
-0.02
0.96
-0.01
20.5
0.0814
0.00
-0.01
-0.04
0.91
-0.03
21
0.1602
0.00
-0.03
-0.09
0.80
-0.05
21.5
0.2821
0.01
-0.05
-0.20
0.63
-0.07
22
0.3912
0.01
-0.07
-0.37
0.43
-0.07
22.5
0.4081
0.01
-0.07
-0.58
0.25
-0.05
23
0.3216
0.01
-0.06
-0.75
0.14
-0.04
23.5
0.2104
0.00
-0.04
-0.87
0.07
-0.02
24
0.1223
0.00
-0.02
-0.94
0.04
-0.01
24.5
0.0678
0.00
-0.01
-0.97
0.02
-0.01
25
0.0402
0.00
-0.01
-0.99
0.01
-0.01
25.5
0.0269
0.00
-0.01
-0.99
0.01
-0.00
26
0.0194
0.00
-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 39 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.