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 — 54 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)AMDL 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 ≈ 109.9% · 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
0.73
-0.07
46
0.0138
0.07
-0.07
-0.27
0.69
-0.07
48
0.0146
0.07
-0.07
-0.30
0.66
-0.08
50
0.0153
0.08
-0.08
-0.33
0.64
-0.08
51
0.0156
0.08
-0.08
-0.35
0.63
-0.08
52
0.0159
0.08
-0.08
-0.37
0.61
-0.08
53
0.0162
0.08
-0.08
-0.38
0.59
-0.08
54
0.0164
0.08
-0.08
-0.40
0.58
-0.08
55
0.0166
0.08
-0.08
-0.42
0.56
-0.08
56
0.0167
0.08
-0.08
-0.43
0.53
-0.08
58
0.0169
0.09
-0.08
-0.47
0.51
-0.08
59
0.0170
0.09
-0.08
-0.48
0.50
-0.08
60
0.0170
0.09
-0.08
-0.50
0.47
-0.08
62
0.0170
0.09
-0.08
-0.53
0.45
-0.08
63
0.0169
0.08
-0.08
-0.54
0.44
-0.08
64
0.0168
0.08
-0.08
-0.56
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.