■ 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 — 360 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)TLN 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 ≈ 46.0% · 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
-0.23
280
0.0056
0.06
-0.23
-0.07
0.91
-0.26
282.5
0.0065
0.07
-0.26
-0.09
0.86
-0.37
290
0.0098
0.10
-0.37
-0.14
0.83
-0.41
292.5
0.0110
0.11
-0.41
-0.17
0.73
-0.53
300
0.0146
0.14
-0.53
-0.27
0.66
-0.59
305
0.0167
0.16
-0.60
-0.35
0.61
-0.62
307.5
0.0175
0.17
-0.62
-0.39
0.57
-0.63
310
0.0180
0.17
-0.64
-0.43
0.39
-0.61
320
0.0176
0.17
-0.61
-0.61
0.31
-0.56
325
0.0161
0.15
-0.56
-0.70
0.27
-0.53
327.5
0.0151
0.14
-0.53
-0.73
0.24
-0.49
330
0.0140
0.14
-0.49
-0.77
0.14
-0.34
340
0.0096
0.09
-0.34
-0.87
0.07
-0.22
350
0.0059
0.06
-0.22
-0.93
0.04
-0.13
360
0.0035
0.04
-0.13
-0.97
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.