■ 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 — 37 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)B open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 44.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-0.01
35
0.0281
0.04
-0.01
-0.13
0.84
-0.01
36
0.0334
0.04
-0.01
-0.16
0.80
-0.02
37
0.0387
0.05
-0.02
-0.20
0.75
-0.02
38
0.0435
0.05
-0.02
-0.25
0.70
-0.02
39
0.0477
0.06
-0.02
-0.30
0.65
-0.02
40
0.0510
0.06
-0.02
-0.35
0.60
-0.02
41
0.0532
0.07
-0.02
-0.41
0.54
-0.02
42
0.0542
0.07
-0.02
-0.46
0.49
-0.02
43
0.0541
0.07
-0.03
-0.51
0.44
-0.02
44
0.0531
0.07
-0.03
-0.56
0.39
-0.02
45
0.0513
0.07
-0.02
-0.61
0.34
-0.02
46
0.0489
0.06
-0.02
-0.66
0.30
-0.02
47
0.0460
0.06
-0.02
-0.70
0.27
-0.02
48
0.0429
0.06
-0.02
-0.74
0.23
-0.02
49
0.0396
0.05
-0.02
-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 35 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.