01 · Daily briefing
Macro · Crypto · OptionsThe day in markets.
Hormuz tensions supply the day’s broader context
Al Jazeera reported fears of renewed US-Iran fighting after President Trump rejected a deal, a broader risk development.
Macro
Al Jazeera reported that Strait of Hormuz tensions lingered amid fears of renewed US-Iran fighting.
Crypto
No qualifying crypto event was retained for this report window.
Links identify the underlying reporting for retained events; entries without a retained link are marked.
02 · Options market read
What the volatility surface did.
3 of 6 headline tenors were comparable at both endpoints. The largest ATM IV move was 1W at +1.99 volatility points, to 56.12%.
RV observation windows
The 24-hour, seven-day and 30-day RV windows are assessed independently using observed one-minute index returns, annualised on a 365-day basis. Recorded minimums: at least 99.5% coverage over 24 hours, 99.5% coverage over seven days, 99.5% coverage over 30 days, with no gap longer than 60 minutes. Returns spanning gaps are excluded, not interpolated; unavailable windows remain unreported. The exact 24-hour spot return requires prices at both endpoints.
03 · Catalyst check
26 Sept 2026, 19:05 UTC to 27 Sept 2026, 19:05 UTCRelevant context found; no confirmed catalyst
Relevant market event
1 relevant event was retained for the comparison window.
News is presented as contextual association unless the structured evidence supports a stronger relationship.
04 · Detailed analysis
What changed across the SOL volatility surface.
At the 19:05 UTC cutoff, 1W ATM IV was 56.12%, 6.10 volatility points below seven-day realised volatility of 62.22%; 24-hour realised volatility was 46.61% and 30-day realised volatility was 56.96%.
Front-end ATM IV increased, averaging +1.18 volatility points to 55.52% across 1W, 2W and 1M.
Long-dated ATM IV is unavailable because comparable observations were not present at both snapshots.
RR25 moved towards calls, averaging +1.05 volatility points to 3.00 volatility points across the three available headline tenors.
BF25 increased, averaging +0.33 volatility points to 3.38 volatility points across the three available headline tenors.
The largest standard-tenor ATM IV move was +1.99 volatility points at 1W, to 56.12%.
Universe roll: added 29SEP26; removed 27SEP26. Comparisons use common expiries only.