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 — 250 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)WAB open contracts per strike for Fri, Jan 15.
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, Jan 15
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jan 15
— call IV— put IVATM ≈ 23.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jan 15
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, Jan 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.95
-0.03
220
0.0021
0.16
-0.03
-0.05
0.93
-0.04
230
0.0029
0.20
-0.04
-0.07
0.90
-0.04
240
0.0040
0.26
-0.04
-0.10
0.85
-0.05
250
0.0053
0.33
-0.05
-0.15
0.80
-0.06
260
0.0070
0.40
-0.06
-0.20
0.72
-0.07
270
0.0089
0.48
-0.07
-0.28
0.63
-0.07
280
0.0106
0.54
-0.08
-0.38
0.52
-0.07
290
0.0117
0.57
-0.08
-0.50
0.40
-0.07
300
0.0117
0.55
-0.07
-0.62
0.29
-0.06
310
0.0106
0.49
-0.07
-0.74
0.20
-0.05
320
0.0087
0.41
-0.06
-0.84
0.14
-0.04
330
0.0067
0.32
-0.05
-0.91
0.09
-0.03
340
0.0050
0.24
-0.04
-0.97
0.06
-0.02
350
0.0036
0.18
-0.01
-0.99
0.04
-0.02
360
0.0026
0.14
—
-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 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.