■ 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 — 4.5 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)STLA 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 ≈ 40.6% · 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
0.99
-0.00
2
0.0151
0.00
-0.00
-0.02
0.98
-0.00
2.5
0.0258
0.00
-0.00
-0.03
0.96
-0.00
3
0.0431
0.00
-0.00
-0.04
0.94
-0.00
3.5
0.0725
0.00
-0.00
-0.06
0.91
-0.00
4
0.1256
0.00
-0.00
-0.09
0.86
-0.00
4.5
0.2313
0.00
-0.00
-0.15
0.73
-0.00
5
0.4656
0.01
-0.00
-0.27
0.44
-0.00
5.5
0.6915
0.01
-0.00
-0.57
0.24
-0.00
6
0.4195
0.01
-0.00
-0.78
0.16
-0.00
6.5
0.2615
0.00
-0.00
-0.86
0.12
-0.00
7
0.1833
0.00
-0.00
-0.90
0.10
-0.00
7.5
0.1390
0.00
-0.00
-0.92
0.07
-0.00
9
0.0787
0.00
-0.00
-0.95
0.06
-0.00
10
0.0609
0.00
-0.00
-0.96
0.05
-0.00
10.5
0.0547
0.00
-0.00
-0.96
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 16 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.