■ 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 — 362.5 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)TSLA open contracts per strike for Fri, Aug 21.
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 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 21
— call IV— put IVATM ≈ 47.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 21
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 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.10
250
0.0028
0.10
-0.11
-0.06
0.91
-0.14
260
0.0040
0.13
-0.14
-0.09
0.89
-0.16
265
0.0047
0.15
-0.16
-0.11
0.86
-0.18
270
0.0055
0.18
-0.18
-0.14
0.80
-0.23
280
0.0073
0.22
-0.23
-0.21
0.71
-0.27
290
0.0090
0.27
-0.27
-0.29
0.61
-0.30
300
0.0102
0.30
-0.30
-0.39
0.56
-0.31
305
0.0106
0.31
-0.31
-0.44
0.51
-0.31
310
0.0107
0.32
-0.31
-0.50
0.46
-0.31
315
0.0107
0.31
-0.31
-0.55
0.40
-0.30
320
0.0104
0.31
-0.30
-0.60
0.35
-0.29
325
0.0100
0.29
-0.29
-0.65
0.31
-0.27
330
0.0095
0.28
-0.27
-0.70
0.27
-0.25
335
0.0088
0.26
-0.26
-0.74
0.23
-0.23
340
0.0081
0.24
-0.24
-0.78
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.