■ 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 — 290 — is the max pain price.
Open interest by strike · Fri, Sep 25
■ calls (up)■ puts (down)DAVE open contracts per strike for Fri, Sep 25.
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 25
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 25
— call IV— put IVATM ≈ 60.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 25
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 25
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.83
-0.22
280
0.0037
0.27
-0.22
-0.17
0.81
-0.23
285
0.0040
0.29
-0.24
-0.19
0.79
-0.25
290
0.0043
0.31
-0.25
-0.21
0.77
-0.26
295
0.0046
0.33
-0.27
-0.23
0.74
-0.28
300
0.0049
0.35
-0.28
-0.26
0.71
-0.29
305
0.0052
0.37
-0.29
-0.29
0.69
-0.30
310
0.0055
0.38
-0.30
-0.32
0.50
-0.34
340
0.0062
0.43
-0.34
-0.50
0.47
-0.34
345
0.0062
0.43
-0.34
-0.53
0.44
-0.33
350
0.0061
0.42
-0.34
-0.56
0.42
-0.33
355
0.0060
0.42
-0.33
-0.59
0.39
-0.33
360
0.0059
0.41
-0.33
-0.61
0.36
-0.32
365
0.0058
0.40
-0.32
-0.64
0.34
-0.31
370
0.0056
0.39
-0.31
-0.67
0.31
-0.30
375
0.0054
0.38
-0.31
-0.69
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.