■ 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 — 9 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)CRMD open contracts per strike for Fri, Dec 18.
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, Dec 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 18
— call IV— put IVATM ≈ 66.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 18
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, Dec 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
1.00
-0.00
1
0.0038
0.00
-0.00
-0.02
0.99
-0.00
2
0.0096
0.00
-0.00
-0.03
0.97
-0.00
3
0.0185
0.01
-0.00
-0.05
0.94
-0.00
4
0.0332
0.01
-0.00
-0.08
0.90
-0.00
5
0.0577
0.01
-0.00
-0.12
0.82
-0.00
6
0.0946
0.01
-0.00
-0.20
0.70
-0.00
7
0.1357
0.02
-0.00
-0.33
0.55
-0.00
8
0.1595
0.02
-0.00
-0.49
0.40
-0.00
9
0.1560
0.02
-0.00
-0.65
0.29
-0.00
10
0.1357
0.01
-0.00
-0.77
0.21
-0.00
11
0.1110
0.01
-0.00
-0.87
0.15
-0.00
12
0.0880
0.01
-0.00
-0.94
0.11
-0.00
13
0.0687
0.01
-0.00
-0.98
0.08
-0.00
14
0.0534
0.01
—
-1.00
0.06
-0.00
15
0.0414
0.01
—
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. 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.