01 · Week in review
Macro · Crypto · OptionsThe week in markets.
Smile rotation is the fitted IV change at +0.15 log-moneyness minus the change at −0.15, in volatility points. A positive reading indicates a relative shift toward the call side.
These dated entries organise news across the calendar week. Related daily report links do not identify the stored reports reused in the weekly analysis; those inputs are listed separately.
Bitcoin two-week RR25 rose 3.22 volatility points to 1.61 volatility points, shifting from put-rich to call-rich pricing and registering as a notable historical move. Front-end ATM IV increased 1.92 points over the week, while long-dated ATM IV was broadly unchanged. The two-week ATM IV rise was 2.54 points to 36.73%.
Weekend begins without market catalyst
No qualifying macro or Bitcoin-specific event was retained for this diary date.
No linked source retained for this diary entry.
Sunday carries no retained context
The diary contains no qualifying macro or crypto catalyst for this date.
No linked source retained for this diary entry.
Monday adds no qualifying catalyst
No retained event offers relevant context for Bitcoin options during this date.
No linked source retained for this diary entry.
Midweek context remains unavailable
No qualifying event was selected to explain the observed weekly surface change.
No linked source retained for this diary entry.
No catalyst enters the weekly diary
The retained record contains no event meeting relevance requirements for this date.
No linked source retained for this diary entry.
Thursday yields no selected context
No evidence-backed event was included as options-market context for this date. No additional qualifying evidence was identified for that session.
No linked source retained for this diary entry.
Week closes without retained news
No qualifying event was retained through the report cutoff on this date.
No linked source retained for this diary entry.
02 · Options market read
What the volatility surface did.
5 of 6 headline tenors were comparable at both endpoints. The largest ATM IV move was 2W at +2.54 volatility points, to 36.73%.
Derived directly from structured Derivasys surface data03 · Catalyst check
29 Aug 2026, 18:43 UTC to 05 Sept 2026, 18:43 UTCNews context unavailable.
News context unavailable because source coverage was incomplete.
04 · Detailed surface analysis
What changed across the BTC volatility surface.
Front-end ATM IV increased, averaging +1.92 volatility points to 36.22% across 1W, 2W and 1M.
Six-month ATM IV was broadly unchanged at 40.15% (-0.01 volatility points); 1Y was unavailable.
RR25 moved towards calls, averaging +2.21 volatility points to 0.80 volatility points across the five available headline tenors.
BF25 was broadly unchanged, averaging +0.05 volatility points to 2.13 volatility points across the five available headline tenors.
The largest standard-tenor ATM IV move was +2.54 volatility points at 2W, to 36.73%.
Weekly universe roll: added 6SEP26, 7SEP26, 8SEP26, 9SEP26; removed 1SEP26, 2SEP26, 30AUG26, 31AUG26, 4SEP26. Listed-expiry changes use contracts present at both endpoints.