■ 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 — 510 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)NOC 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 ≈ 33.2% · 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
1.00
-0.01
445
0.0006
0.00
-0.01
-0.00
0.99
-0.03
450
0.0016
0.01
-0.03
-0.01
0.98
-0.07
455
0.0037
0.02
-0.08
-0.02
0.95
-0.18
460
0.0075
0.04
-0.18
-0.05
0.90
-0.35
465
0.0132
0.08
-0.35
-0.10
0.82
-0.58
470
0.0201
0.12
-0.59
-0.18
0.70
-0.81
475
0.0265
0.15
-0.82
-0.30
0.56
-0.94
480
0.0302
0.17
-0.95
-0.45
0.41
-0.91
485
0.0297
0.17
-0.93
-0.60
0.27
-0.74
490
0.0253
0.14
-0.75
-0.74
0.16
-0.51
495
0.0187
0.11
-0.51
-0.85
0.09
-0.30
500
0.0120
0.07
-0.29
-0.93
0.04
-0.15
505
0.0068
0.04
-0.15
-0.97
0.02
-0.06
510
0.0034
0.02
-0.09
-0.99
0.01
-0.02
515
0.0015
0.01
-0.08
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 49 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.