■ 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 — 32 — is the max pain price.
Open interest by strike · Fri, Sep 4
■ calls (up)■ puts (down)ZSL open contracts per strike for Fri, Sep 4.
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 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 4
— call IV— put IVATM ≈ 95.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 4
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 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.81
-0.04
20
0.0491
0.02
-0.04
-0.20
0.76
-0.04
21
0.0580
0.02
-0.04
-0.25
0.69
-0.04
22
0.0662
0.02
-0.04
-0.31
0.62
-0.05
23
0.0722
0.02
-0.04
-0.38
0.51
-0.05
24.5
0.0753
0.02
-0.05
-0.49
0.47
-0.05
25
0.0746
0.02
-0.05
-0.52
0.40
-0.05
26
0.0713
0.02
-0.04
-0.59
0.34
-0.04
27
0.0662
0.02
-0.04
-0.65
0.32
-0.04
27.5
0.0634
0.02
-0.04
-0.67
0.29
-0.04
28
0.0604
0.02
-0.04
-0.69
0.25
-0.04
29
0.0544
0.02
-0.04
-0.74
0.21
-0.04
30
0.0487
0.02
-0.04
-0.77
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 12 strikes around the money — all 17 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.