■ 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 — 255 — is the max pain price.
Open interest by strike · Fri, Sep 25
■ calls (up)■ puts (down)TXN open contracts per strike for Fri, Sep 25.
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 25
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 25
— call IV— put IVATM ≈ 37.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 25
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 25
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.89
-0.09
230
0.0063
0.14
-0.09
-0.11
0.85
-0.11
235
0.0078
0.17
-0.11
-0.15
0.81
-0.13
240
0.0094
0.21
-0.13
-0.19
0.76
-0.15
245
0.0110
0.24
-0.15
-0.25
0.69
-0.16
250
0.0123
0.26
-0.17
-0.31
0.63
-0.18
255
0.0133
0.28
-0.18
-0.37
0.56
-0.18
260
0.0140
0.30
-0.19
-0.44
0.49
-0.19
265
0.0142
0.30
-0.19
-0.52
0.42
-0.18
270
0.0140
0.29
-0.18
-0.58
0.35
-0.17
275
0.0133
0.28
-0.17
-0.65
0.29
-0.16
280
0.0123
0.26
-0.16
-0.71
0.24
-0.14
285
0.0111
0.23
-0.15
-0.77
0.20
-0.13
290
0.0098
0.21
-0.13
-0.81
0.16
-0.11
295
0.0084
0.18
-0.11
-0.85
0.13
-0.10
300
0.0072
0.16
-0.10
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 44 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.