Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 — 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 — 115 — is the max pain price.
Open interest by strike · Fri, Oct 9
■ calls (up)■ puts (down)NRG open contracts per strike for Fri, Oct 9.
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, Oct 9
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 9
— call IV— put IVATM ≈ 48.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 9
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, Oct 9
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-0.09
105
0.0208
0.10
-0.09
-0.25
0.73
-0.09
106
0.0218
0.10
-0.09
-0.27
0.71
-0.09
107
0.0228
0.11
-0.09
-0.29
0.69
-0.10
108
0.0237
0.11
-0.10
-0.32
0.66
-0.10
109
0.0245
0.12
-0.10
-0.34
0.64
-0.10
110
0.0252
0.12
-0.10
-0.37
0.58
-0.10
112
0.0262
0.12
-0.11
-0.42
0.56
-0.11
113
0.0265
0.13
-0.11
-0.45
0.51
-0.11
115
0.0267
0.13
-0.11
-0.50
0.48
-0.11
116
0.0266
0.13
-0.11
-0.53
0.43
-0.11
118
0.0262
0.12
-0.11
-0.58
0.40
-0.10
119
0.0257
0.12
-0.11
-0.61
0.38
-0.10
120
0.0252
0.12
-0.10
-0.63
0.36
-0.10
121
0.0246
0.12
-0.10
-0.66
0.34
-0.10
122
0.0240
0.12
-0.10
-0.68
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 29 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.