■ 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 — 217.5 — is the max pain price.
Open interest by strike · Fri, Sep 4
■ calls (up)■ puts (down)BA open contracts per strike for Fri, Sep 4.
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 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 4
— call IV— put IVATM ≈ 27.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 4
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 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.05
195
0.0086
0.03
-0.05
-0.04
0.94
-0.07
197.5
0.0122
0.04
-0.07
-0.07
0.90
-0.09
200
0.0171
0.06
-0.09
-0.10
0.86
-0.12
202.5
0.0232
0.08
-0.12
-0.14
0.79
-0.15
205
0.0301
0.10
-0.15
-0.21
0.71
-0.18
207.5
0.0365
0.12
-0.18
-0.29
0.61
-0.20
210
0.0410
0.13
-0.20
-0.39
0.51
-0.21
212.5
0.0426
0.13
-0.21
-0.50
0.40
-0.21
215
0.0412
0.13
-0.21
-0.60
0.31
-0.19
217.5
0.0372
0.12
-0.19
-0.70
0.23
-0.16
220
0.0316
0.10
-0.16
-0.79
0.16
-0.13
222.5
0.0253
0.08
-0.13
-0.85
0.11
-0.10
225
0.0192
0.06
-0.10
-0.91
0.07
-0.07
227.5
0.0140
0.05
-0.08
-0.94
0.05
-0.05
230
0.0098
0.03
-0.05
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 48 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.