■ 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 — 305 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)DAVE 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 ≈ 58.4% · 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
0.78
-0.32
300
0.0058
0.26
-0.32
-0.22
0.74
-0.34
305
0.0063
0.27
-0.34
-0.26
0.71
-0.35
310
0.0068
0.29
-0.36
-0.29
0.68
-0.37
315
0.0072
0.31
-0.38
-0.33
0.64
-0.39
320
0.0076
0.32
-0.39
-0.36
0.60
-0.40
325
0.0079
0.33
-0.40
-0.40
0.56
-0.40
330
0.0080
0.34
-0.41
-0.44
0.52
-0.41
335
0.0081
0.34
-0.41
-0.48
0.48
-0.41
340
0.0081
0.34
-0.41
-0.53
0.37
-0.39
355
0.0075
0.32
-0.39
-0.64
0.33
-0.38
360
0.0072
0.31
-0.38
-0.67
0.30
-0.37
365
0.0069
0.30
-0.37
-0.70
0.28
-0.35
370
0.0065
0.28
-0.35
-0.73
0.25
-0.34
375
0.0061
0.27
-0.34
-0.75
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 25 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.