■ 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 — 44 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)BN 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 ≈ 27.3% · 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
0.90
-0.01
35
0.0266
0.03
-0.01
-0.11
0.88
-0.01
36
0.0324
0.04
-0.01
-0.13
0.85
-0.01
37
0.0396
0.04
-0.01
-0.16
0.82
-0.01
38
0.0484
0.05
-0.01
-0.19
0.78
-0.01
39
0.0588
0.05
-0.01
-0.24
0.72
-0.01
40
0.0707
0.06
-0.01
-0.30
0.65
-0.01
41
0.0828
0.06
-0.01
-0.37
0.56
-0.01
42
0.0926
0.07
-0.01
-0.46
0.47
-0.01
43
0.0967
0.07
-0.01
-0.56
0.38
-0.01
44
0.0930
0.06
-0.01
-0.67
0.30
-0.01
45
0.0833
0.06
-0.01
-0.75
0.23
-0.01
46
0.0713
0.05
-0.01
-0.82
0.18
-0.01
47
0.0596
0.05
-0.01
-0.88
0.15
-0.01
48
0.0496
0.04
-0.01
-0.92
0.12
-0.01
49
0.0413
0.04
-0.01
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.