■ 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 — 17 — is the max pain price.
Open interest by strike · Fri, Jul 31
■ calls (up)■ puts (down)SOFI open contracts per strike for Fri, Jul 31.
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, Jul 31
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jul 31
— call IV— put IVATM ≈ 137.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jul 31
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, Jul 31
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.97
-0.02
13
0.0274
0.00
-0.02
-0.03
0.95
-0.03
13.5
0.0435
0.00
-0.03
-0.05
0.93
-0.04
14
0.0655
0.00
-0.04
-0.07
0.88
-0.07
14.5
0.0930
0.00
-0.07
-0.12
0.82
-0.09
15
0.1236
0.00
-0.09
-0.18
0.75
-0.12
15.5
0.1532
0.01
-0.12
-0.25
0.66
-0.14
16
0.1768
0.01
-0.14
-0.34
0.57
-0.15
16.5
0.1906
0.01
-0.15
-0.43
0.47
-0.15
17
0.1927
0.01
-0.15
-0.53
0.38
-0.14
17.5
0.1840
0.01
-0.14
-0.62
0.30
-0.13
18
0.1668
0.01
-0.13
-0.70
0.23
-0.11
18.5
0.1447
0.01
-0.11
-0.77
0.17
-0.09
19
0.1208
0.00
-0.09
-0.83
0.13
-0.07
19.5
0.0975
0.00
-0.07
-0.88
0.09
-0.05
20
0.0766
0.00
-0.05
-0.91
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 32 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 history
History starts accruing now: first snapshot taken 2026-07-28. We chart only days we actually observed — check back as the record builds. The measured hit-rate across all tickers lives on the accuracy ledger.
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.