Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 45 — is the max pain price.
Open interest by strike · Fri, Feb 19
■ calls (up)■ puts (down)CLMT open contracts per strike for Fri, Feb 19.
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, Feb 19
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Feb 19
— call IV— put IVATM ≈ 66.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Feb 19
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, Feb 19
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.80
-0.02
39
0.0145
0.08
-0.02
-0.20
0.78
-0.02
40
0.0153
0.08
-0.02
-0.22
0.76
-0.03
41
0.0160
0.09
-0.03
-0.24
0.74
-0.03
42
0.0167
0.09
-0.03
-0.26
0.72
-0.03
43
0.0174
0.10
-0.03
-0.28
0.70
-0.03
44
0.0180
0.10
-0.03
-0.30
0.68
-0.03
45
0.0185
0.10
-0.03
-0.32
0.58
-0.03
50
0.0202
0.11
-0.03
-0.42
0.48
-0.03
55
0.0205
0.11
-0.03
-0.52
0.40
-0.03
60
0.0197
0.11
-0.03
-0.61
0.33
-0.03
65
0.0182
0.10
-0.03
-0.69
0.27
-0.03
70
0.0164
0.09
-0.03
-0.75
0.22
-0.03
75
0.0146
0.08
-0.03
-0.80
0.18
-0.02
80
0.0127
0.07
-0.02
-0.85
0.14
-0.02
85
0.0111
0.06
-0.02
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 25 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.