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 — 285 — is the max pain price.
Open interest by strike · Fri, Oct 2
■ calls (up)■ puts (down)TLN 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 ≈ 52.9% · 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
0.83
-0.24
280
0.0063
0.19
-0.24
-0.17
0.80
-0.27
285
0.0072
0.21
-0.27
-0.21
0.76
-0.29
290
0.0080
0.24
-0.30
-0.25
0.71
-0.32
295
0.0088
0.26
-0.32
-0.29
0.67
-0.34
300
0.0095
0.27
-0.34
-0.34
0.62
-0.35
305
0.0100
0.29
-0.35
-0.39
0.56
-0.36
310
0.0104
0.30
-0.36
-0.44
0.51
-0.36
315
0.0105
0.30
-0.37
-0.49
0.46
-0.36
320
0.0105
0.30
-0.36
-0.55
0.41
-0.35
325
0.0103
0.29
-0.36
-0.60
0.36
-0.34
330
0.0099
0.28
-0.34
-0.65
0.32
-0.32
335
0.0094
0.27
-0.33
-0.69
0.28
-0.30
340
0.0088
0.25
-0.31
-0.73
0.24
-0.28
345
0.0081
0.23
-0.29
-0.77
0.20
-0.26
350
0.0074
0.21
-0.27
-0.81
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 43 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.