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 · Wed, Mar 31
■ calls (up)■ puts (down)TLT open contracts per strike for Wed, Mar 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 · Wed, Mar 31
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Mar 31
— call IV— put IVATM ≈ 13.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Mar 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 · Wed, Mar 31
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.85
-0.01
74
0.0320
0.13
-0.01
-0.16
0.82
-0.01
75
0.0361
0.14
-0.01
-0.20
0.78
-0.01
76
0.0404
0.16
-0.01
-0.23
0.74
-0.01
77
0.0445
0.17
-0.01
-0.28
0.69
-0.01
78
0.0482
0.19
-0.01
-0.32
0.64
-0.01
79
0.0514
0.20
-0.01
-0.37
0.59
-0.01
80
0.0537
0.20
-0.01
-0.43
0.54
-0.01
81
0.0550
0.21
-0.01
-0.48
0.48
-0.01
82
0.0552
0.21
-0.01
-0.54
0.43
-0.01
83
0.0543
0.21
-0.01
-0.59
0.38
-0.01
84
0.0524
0.20
-0.01
-0.64
0.33
-0.01
85
0.0497
0.19
-0.01
-0.69
0.29
-0.01
86
0.0464
0.18
-0.01
-0.74
0.25
-0.01
87
0.0427
0.17
-0.01
-0.78
0.21
-0.01
88
0.0388
0.16
-0.01
-0.81
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 38 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.