■ 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 — 280 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)CEG 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 ≈ 39.4% · 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
0.98
-0.02
210
0.0010
0.04
-0.02
-0.02
0.97
-0.04
220
0.0017
0.06
-0.04
-0.03
0.95
-0.06
230
0.0028
0.10
-0.06
-0.05
0.91
-0.08
240
0.0044
0.14
-0.08
-0.09
0.86
-0.11
250
0.0064
0.20
-0.12
-0.15
0.78
-0.15
260
0.0086
0.26
-0.15
-0.23
0.68
-0.18
270
0.0104
0.32
-0.18
-0.33
0.56
-0.19
280
0.0114
0.34
-0.20
-0.44
0.45
-0.20
290
0.0114
0.35
-0.20
-0.56
0.35
-0.19
300
0.0105
0.32
-0.19
-0.66
0.26
-0.17
310
0.0090
0.29
-0.17
-0.75
0.20
-0.14
320
0.0075
0.24
-0.15
-0.82
0.14
-0.12
330
0.0060
0.20
-0.13
-0.87
0.11
-0.10
340
0.0047
0.16
-0.11
-0.91
0.08
-0.08
350
0.0036
0.13
-0.09
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 54 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.