■ 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 — 260 — is the max pain price.
Open interest by strike · Fri, Oct 2
■ calls (up)■ puts (down)TXN open contracts per strike for Fri, Oct 2.
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, Oct 2
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 2
— call IV— put IVATM ≈ 37.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 2
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, Oct 2
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-0.09
230
0.0064
0.18
-0.10
-0.13
0.83
-0.11
235
0.0077
0.21
-0.11
-0.17
0.79
-0.12
240
0.0089
0.24
-0.13
-0.21
0.74
-0.14
245
0.0101
0.27
-0.14
-0.27
0.68
-0.15
250
0.0111
0.30
-0.16
-0.32
0.62
-0.16
255
0.0119
0.32
-0.17
-0.38
0.56
-0.17
260
0.0124
0.33
-0.17
-0.44
0.50
-0.17
265
0.0126
0.33
-0.17
-0.51
0.44
-0.17
270
0.0124
0.33
-0.17
-0.57
0.38
-0.16
275
0.0120
0.32
-0.16
-0.63
0.32
-0.15
280
0.0114
0.30
-0.15
-0.69
0.27
-0.14
285
0.0105
0.28
-0.14
-0.74
0.23
-0.13
290
0.0095
0.25
-0.13
-0.78
0.19
-0.11
295
0.0085
0.23
-0.12
-0.82
0.15
-0.10
300
0.0074
0.20
-0.10
-0.86
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 46 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.