■ 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 — 17.5 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)SOFI open contracts per strike for Fri, Aug 28.
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, Aug 28
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 28
— call IV— put IVATM ≈ 65.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 28
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, Aug 28
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.90
-0.01
13
0.0478
0.01
-0.01
-0.10
0.88
-0.01
13.5
0.0593
0.01
-0.01
-0.13
0.84
-0.01
14
0.0717
0.01
-0.01
-0.16
0.80
-0.01
14.5
0.0845
0.01
-0.01
-0.20
0.75
-0.02
15
0.0970
0.02
-0.02
-0.25
0.69
-0.02
15.5
0.1081
0.02
-0.02
-0.31
0.64
-0.02
16
0.1169
0.02
-0.02
-0.37
0.57
-0.02
16.5
0.1228
0.02
-0.02
-0.43
0.51
-0.02
17
0.1254
0.02
-0.02
-0.49
0.45
-0.02
17.5
0.1246
0.02
-0.02
-0.55
0.39
-0.02
18
0.1208
0.02
-0.02
-0.61
0.34
-0.02
18.5
0.1147
0.02
-0.02
-0.66
0.29
-0.02
19
0.1069
0.02
-0.02
-0.71
0.25
-0.02
19.5
0.0981
0.02
-0.02
-0.76
0.21
-0.01
20
0.0888
0.01
-0.01
-0.79
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 30 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.