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 — 81 — is the max pain price.
Open interest by strike · Thu, Dec 31
■ calls (up)■ puts (down)TLT open contracts per strike for Thu, Dec 31.
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 · Thu, Dec 31
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Thu, Dec 31
— call IV— put IVATM ≈ 13.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Thu, Dec 31
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 · Thu, Dec 31
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.01
74
0.0268
0.03
-0.01
-0.09
0.93
-0.01
75
0.0371
0.05
-0.01
-0.12
0.89
-0.01
76
0.0479
0.07
-0.01
-0.15
0.84
-0.01
77
0.0587
0.08
-0.01
-0.20
0.78
-0.01
78
0.0693
0.10
-0.01
-0.26
0.70
-0.01
79
0.0792
0.12
-0.01
-0.34
0.62
-0.01
80
0.0865
0.13
-0.01
-0.41
0.53
-0.01
81
0.0896
0.14
-0.01
-0.50
0.44
-0.01
82
0.0877
0.14
-0.01
-0.58
0.36
-0.01
83
0.0818
0.13
-0.01
-0.66
0.29
-0.01
84
0.0730
0.12
-0.01
-0.73
0.23
-0.01
85
0.0630
0.11
-0.01
-0.79
0.18
-0.01
86
0.0531
0.09
-0.01
-0.83
0.14
-0.01
87
0.0438
0.08
-0.01
-0.87
0.11
-0.01
88
0.0358
0.07
-0.01
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 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.