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 — 350 — is the max pain price.
Open interest by strike · Fri, Dec 17
■ calls (up)■ puts (down)NVMI open contracts per strike for Fri, Dec 17.
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 17
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 17
— call IV— put IVATM ≈ 57.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 17
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 17
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.01
165
0.0008
0.51
-0.04
-0.08
0.88
-0.03
190
0.0010
0.67
-0.05
-0.12
0.86
-0.03
200
0.0011
0.73
-0.05
-0.14
0.85
-0.04
210
0.0012
0.79
-0.05
-0.16
0.83
-0.04
220
0.0013
0.85
-0.06
-0.17
0.79
-0.05
240
0.0014
0.95
-0.07
-0.21
0.78
-0.05
250
0.0015
1.00
-0.07
-0.23
0.62
-0.08
330
0.0020
1.27
-0.08
-0.40
0.59
-0.08
350
0.0020
1.30
-0.09
-0.44
0.47
-0.08
420
0.0021
1.33
-0.09
-0.57
0.40
-0.08
470
0.0020
1.29
-0.08
-0.66
0.38
-0.08
480
0.0020
1.27
-0.08
-0.67
0.37
-0.08
490
0.0020
1.26
-0.08
-0.69
0.36
-0.08
500
0.0020
1.25
-0.07
-0.70
0.34
-0.08
510
0.0019
1.23
-0.07
-0.72
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 18 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.