■ 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 — 132 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)FXB open contracts per strike for Fri, Sep 18.
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 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 5.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.93
-0.01
123
0.0284
0.06
-0.01
-0.08
0.91
-0.01
124
0.0351
0.07
-0.01
-0.10
0.90
-0.01
125
0.0443
0.08
-0.01
-0.12
0.87
-0.01
126
0.0574
0.09
-0.01
-0.14
0.84
-0.01
127
0.0770
0.10
-0.01
-0.17
0.79
-0.01
128
0.1071
0.12
-0.01
-0.23
0.70
-0.01
129
0.1522
0.14
-0.01
-0.33
0.54
-0.01
130
0.1934
0.16
-0.01
-0.49
0.36
-0.01
131
0.1680
0.15
-0.01
-0.67
0.25
-0.01
132
0.1199
0.13
-0.01
-0.78
0.19
-0.01
133
0.0864
0.11
-0.01
-0.84
0.15
-0.01
134
0.0647
0.10
-0.01
-0.88
0.12
-0.01
135
0.0502
0.09
-0.01
-0.90
0.10
-0.01
136
0.0401
0.08
-0.01
-0.92
0.08
-0.01
138
0.0273
0.06
-0.01
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 20 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.