01 · Market read
The day across the three live Derivasys markets.
SOL’s one-week ATM IV fell 5.14 volatility points, far more than BTC’s 0.12-point decline, creating a 5.02-point dispersion across the major coins.
This is a comparison, not a pooled surface: each asset keeps its own forwards, expiries, SVI fit and realised-volatility history.
02 · Macro and crypto diary
Major-coin volatility diverges as SOL leads decline
SOL’s one-week ATM IV fell 5.14 volatility points, against a 0.12-point fall in BTC one-week ATM IV, leaving a 5.02-point cross-asset change dispersion. SOL remained the one-week ATM IV leader at 61.17%, versus BTC at 33.41%, while ETH held the steepest one-year-minus-one-week ATM IV slope.
1 September 2026
SOL drives major-coin volatility dispersion
SOL one-week ATM IV fell 5.14 volatility points versus BTC one-week ATM IV down 0.12 points.
Macro: Macro and regulatory reporting was retained across the major-coin window.
Crypto: Bitcoin market reporting and an SEC-rule discussion were retained.
Completed-session cross-asset context
Crypto volatility against VIX and SPX.
The benchmark comparison is separately timestamped to the latest completed US session; it does not replace the intraday crypto surface cutoffs above.
| Asset | 30d ATM IV | VIX spread | IV / VIX | 20d crypto RV | 20-session SPX RV | RV spread percentile | 30-session correlation |
|---|---|---|---|---|---|---|---|
| BTC | +35.25% | +20.33 vol pts | +2.36× | +43.77% | +9.47% | 74.1 percentile | +0.101 |
| ETH | +49.55% | +34.63 vol pts | +3.32× | +59.50% | +9.47% | 46.2 percentile | -0.003 |
| SOL | +64.53% | +49.61 vol pts | +4.33× | +69.51% | +9.47% | 47.2 percentile | +0.198 |
As of 31 Aug 2026, 20:00 UTC. Crypto RV uses calendar days and sqrt(365); SPX RV uses US sessions and sqrt(252).
03 · Cross-asset scorecard
Implied volatility, realised volatility and skew.
04 · Term structures
ATM implied volatility across common standard tenors.
| Asset | 1W ATM / Δ | 1M ATM / Δ | 3M ATM / Δ | 6M ATM / Δ | 1Y ATM / Δ |
|---|---|---|---|---|---|
| BTC | 33.41% / -0.12 | 35.95% / +1.00 | 38.20% / +0.30 | 40.02% / +0.03 | 42.04% / -0.21 |
| ETH | 44.83% / -1.03 | 49.02% / -0.48 | 51.10% / -0.29 | 53.70% / -0.24 | 55.78% / -0.29 |
| SOL | 61.17% / -5.14 | 59.95% / -4.00 | 57.98% / -2.51 | 57.49% / -2.12 | 57.24% / -1.93 |
05 · Underlying reports
The full surface evidence remains asset-specific.
BTC smile rotation leads a firmer month
BTC one-month ATM IV rose 1.00 volatility points to 35.95%, while the nearest eligible BTC forward fell 1.35%.
Read the BTC reportETH forward falls as front volatility eases
ETH one-week ATM IV fell 1.03 volatility points to 44.83% as the nearest eligible ETH forward fell 1.52%.
Read the ETH reportSOL one-week volatility drops as curve normalises
SOL one-week ATM IV fell 5.14 volatility points to 61.17%, setting the principal surface move as the curve became less inverted.
Read the SOL report06 · Methodology and provenance
A derived publication with no duplicated market data.
The report is assembled at request time from the immutable BTC, ETH and SOL daily-report artifacts for the same UTC report date. It is omitted unless all three exist. Cross-asset averages are descriptive and equal-weighted; no attempt is made to combine distinct volatility surfaces into a single fit.