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 — 103 — is the max pain price.
Open interest by strike · Fri, Apr 16
■ calls (up)■ puts (down)PPH open contracts per strike for Fri, Apr 16.
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, Apr 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Apr 16
— call IV— put IVATM ≈ 22.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Apr 16
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, Apr 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.73
-0.02
107
0.0182
0.26
-0.02
-0.28
0.71
-0.02
108
0.0190
0.27
-0.02
-0.30
0.69
-0.02
109
0.0198
0.28
-0.02
-0.32
0.67
-0.02
110
0.0205
0.28
-0.02
-0.34
0.65
-0.02
111
0.0212
0.29
-0.02
-0.36
0.63
-0.02
112
0.0218
0.30
-0.02
-0.38
0.61
-0.02
113
0.0223
0.30
-0.02
-0.40
0.56
-0.02
115
0.0232
0.31
-0.02
-0.45
0.54
-0.02
116
0.0236
0.31
-0.02
-0.47
0.52
-0.02
117
0.0238
0.31
-0.02
-0.50
0.49
-0.02
118
0.0240
0.31
-0.02
-0.52
0.47
-0.02
119
0.0240
0.31
-0.02
-0.55
0.45
-0.02
120
0.0240
0.31
-0.02
-0.57
0.42
-0.02
121
0.0238
0.31
-0.02
-0.59
0.40
-0.02
122
0.0236
0.30
-0.02
-0.62
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 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.