Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 305 — is the max pain price.
Open interest by strike · Fri, Oct 9
■ calls (up)■ puts (down)TLN open contracts per strike for Fri, Oct 9.
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 9
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 9
— call IV— put IVATM ≈ 50.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 9
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 9
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.80
-0.23
280
0.0060
0.24
-0.23
-0.20
0.77
-0.25
285
0.0067
0.26
-0.25
-0.23
0.73
-0.26
290
0.0073
0.28
-0.27
-0.27
0.69
-0.28
295
0.0078
0.30
-0.28
-0.31
0.65
-0.29
300
0.0083
0.32
-0.30
-0.35
0.61
-0.30
305
0.0087
0.33
-0.31
-0.39
0.56
-0.31
310
0.0090
0.34
-0.31
-0.44
0.52
-0.31
315
0.0091
0.35
-0.32
-0.48
0.47
-0.31
320
0.0091
0.34
-0.32
-0.53
0.43
-0.31
325
0.0090
0.34
-0.31
-0.57
0.39
-0.30
330
0.0088
0.33
-0.30
-0.62
0.35
-0.29
335
0.0085
0.32
-0.29
-0.66
0.31
-0.28
340
0.0081
0.31
-0.28
-0.70
0.28
-0.26
345
0.0076
0.29
-0.27
-0.73
0.24
-0.24
350
0.0071
0.27
-0.25
-0.77
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 31 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.