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 — 195 — is the max pain price.
Open interest by strike · Fri, Apr 16
■ calls (up)■ puts (down)RSG 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 ≈ 19.5% · 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
0.94
-0.01
185
0.0025
0.19
-0.01
-0.06
0.93
-0.01
190
0.0030
0.21
-0.02
-0.07
0.92
-0.01
195
0.0036
0.25
-0.02
-0.08
0.90
-0.02
200
0.0044
0.29
-0.02
-0.10
0.85
-0.02
210
0.0062
0.38
-0.03
-0.15
0.79
-0.03
220
0.0084
0.48
-0.03
-0.22
0.69
-0.03
230
0.0106
0.58
-0.03
-0.32
0.58
-0.04
240
0.0123
0.65
-0.04
-0.44
0.46
-0.04
250
0.0126
0.66
-0.04
-0.57
0.34
-0.03
260
0.0116
0.61
-0.04
-0.70
0.25
-0.03
270
0.0098
0.53
-0.04
-0.81
0.19
-0.03
280
0.0079
0.45
-0.04
-0.90
0.10
-0.02
300
0.0049
0.31
-0.01
-0.99
0.08
-0.02
310
0.0038
0.25
-0.01
-1.00
0.06
-0.01
320
0.0031
0.21
-0.01
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 24 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.