Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 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 — 1675 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)ASML 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 ≈ 42.1% · 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
0.69
-1.26
1530
0.0020
1.49
-1.29
-0.32
0.67
-1.29
1540
0.0020
1.53
-1.31
-0.34
0.65
-1.32
1550
0.0021
1.57
-1.34
-0.36
0.63
-1.34
1560
0.0021
1.60
-1.36
-0.38
0.60
-1.36
1570
0.0022
1.62
-1.38
-0.40
0.58
-1.38
1580
0.0022
1.64
-1.39
-0.42
0.56
-1.39
1590
0.0022
1.66
-1.40
-0.45
0.54
-1.39
1600
0.0022
1.67
-1.41
-0.47
0.49
-1.39
1620
0.0023
1.68
-1.41
-0.51
0.47
-1.38
1630
0.0023
1.67
-1.40
-0.54
0.45
-1.37
1640
0.0022
1.66
-1.39
-0.56
0.42
-1.36
1650
0.0022
1.65
-1.37
-0.58
0.40
-1.34
1660
0.0022
1.63
-1.35
-0.60
0.38
-1.32
1670
0.0022
1.60
-1.33
-0.63
0.37
-1.30
1675
0.0022
1.59
-1.32
-0.64
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.