■ 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 — 104 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)FXF 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 ≈ 8.6% · 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
101
0.0248
0.05
-0.01
-0.08
0.91
-0.01
102
0.0301
0.06
-0.01
-0.09
0.90
-0.01
103
0.0373
0.06
-0.01
-0.10
0.88
-0.01
104
0.0472
0.07
-0.01
-0.13
0.85
-0.01
105
0.0613
0.08
-0.01
-0.15
0.81
-0.01
106
0.0823
0.09
-0.01
-0.20
0.75
-0.01
107
0.1136
0.11
-0.01
-0.27
0.64
-0.01
108
0.1539
0.13
-0.01
-0.40
0.48
-0.01
109
0.1679
0.13
-0.02
-0.58
0.34
-0.01
110
0.1358
0.12
-0.02
-0.74
0.25
-0.01
111
0.1015
0.11
-0.02
-0.82
0.20
-0.01
112
0.0773
0.10
-0.02
-0.87
0.17
-0.01
113
0.0606
0.09
-0.02
-0.90
0.14
-0.01
114
0.0488
0.08
-0.02
-0.92
0.12
-0.01
115
0.0403
0.07
-0.02
-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 25 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.