■ 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 — 17 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)ETH open contracts per strike for Fri, Sep 11.
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 11
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 11
— call IV— put IVATM ≈ 40.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 11
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 11
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.81
-0.01
16
0.1041
0.01
-0.01
-0.20
0.70
-0.01
17
0.1626
0.02
-0.01
-0.30
0.62
-0.01
17.5
0.1958
0.02
-0.01
-0.38
0.52
-0.01
18
0.2154
0.02
-0.01
-0.49
0.41
-0.01
18.5
0.2078
0.02
-0.01
-0.59
0.33
-0.01
19
0.1823
0.02
-0.01
-0.68
0.27
-0.01
19.5
0.1539
0.02
-0.01
-0.74
0.19
-0.01
20.5
0.1092
0.01
-0.01
-0.82
0.11
-0.01
22.5
0.0619
0.01
-0.01
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. 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.