■ 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 — 12 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)OMER open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 76.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.01
10
0.0182
0.01
-0.01
-0.08
0.89
-0.01
11
0.0236
0.02
-0.01
-0.10
0.86
-0.01
12
0.0298
0.02
-0.01
-0.14
0.82
-0.01
13
0.0366
0.02
-0.01
-0.18
0.77
-0.01
14
0.0433
0.03
-0.01
-0.23
0.71
-0.01
15
0.0494
0.03
-0.01
-0.28
0.66
-0.01
16
0.0543
0.03
-0.01
-0.34
0.60
-0.01
17
0.0577
0.04
-0.01
-0.40
0.54
-0.01
18
0.0594
0.04
-0.01
-0.46
0.48
-0.01
19
0.0597
0.04
-0.01
-0.51
0.43
-0.01
20
0.0587
0.04
-0.01
-0.56
0.39
-0.01
21
0.0568
0.03
-0.01
-0.61
0.34
-0.01
22
0.0542
0.03
-0.01
-0.66
0.30
-0.01
23
0.0512
0.03
-0.01
-0.70
0.24
-0.01
25
0.0448
0.03
-0.01
-0.76
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 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.