■ 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 — 350 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)MAR open contracts per strike for Fri, Sep 11.
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 11
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 11
— call IV— put IVATM ≈ 24.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 11
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 11
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.08
320
0.0053
0.14
-0.09
-0.08
0.90
-0.09
325
0.0066
0.17
-0.09
-0.10
0.87
-0.10
330
0.0083
0.20
-0.11
-0.13
0.83
-0.12
335
0.0104
0.24
-0.12
-0.17
0.78
-0.14
340
0.0127
0.28
-0.14
-0.23
0.71
-0.15
345
0.0149
0.32
-0.16
-0.29
0.63
-0.17
350
0.0168
0.35
-0.17
-0.37
0.54
-0.17
355
0.0180
0.37
-0.18
-0.46
0.45
-0.17
360
0.0183
0.37
-0.17
-0.55
0.36
-0.16
365
0.0176
0.35
-0.16
-0.65
0.21
-0.12
375
0.0136
0.27
-0.12
-0.81
0.15
-0.10
380
0.0111
0.23
-0.10
-0.86
0.12
-0.09
385
0.0089
0.19
-0.09
-0.90
0.10
-0.08
390
0.0072
0.17
-0.08
-0.92
0.09
-0.08
395
0.0060
0.15
-0.08
-0.93
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.