■ 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 — 120 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)NRG open contracts per strike for Fri, Sep 18.
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, Sep 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 43.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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, Sep 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.86
-0.12
106
0.0292
0.04
-0.12
-0.14
0.83
-0.14
107
0.0337
0.04
-0.14
-0.17
0.80
-0.15
108
0.0384
0.04
-0.15
-0.21
0.76
-0.17
109
0.0429
0.05
-0.17
-0.25
0.71
-0.18
110
0.0470
0.05
-0.18
-0.29
0.66
-0.20
111
0.0505
0.06
-0.20
-0.34
0.61
-0.20
112
0.0532
0.06
-0.21
-0.40
0.55
-0.21
113
0.0547
0.06
-0.21
-0.45
0.50
-0.21
114
0.0551
0.06
-0.22
-0.51
0.45
-0.21
115
0.0544
0.06
-0.21
-0.56
0.39
-0.21
116
0.0526
0.06
-0.21
-0.62
0.34
-0.20
117
0.0500
0.06
-0.20
-0.67
0.30
-0.19
118
0.0467
0.06
-0.19
-0.71
0.26
-0.17
119
0.0430
0.05
-0.18
-0.75
0.22
-0.16
120
0.0392
0.05
-0.17
-0.79
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 57 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.