01 · Market read
The day across the three live Derivasys markets.
The main relative-value development was a pronounced narrowing in one-week call-side volatility differences across the three major coins.
This is a comparison, not a pooled surface: each asset keeps its own forwards, expiries, SVI fit and realised-volatility history.
Cross-sectional thesis
Where the complex is diverging.
One-week ATM IV level dispersion is compressing, at +15.67 vol pts; daily one-week ATM IV changes span +1.46 vol pts across the complex.
BTC screens richest and ETH cheapest on one-week implied volatility versus seven-day realised volatility, with a 1.87-point cross-sectional range.
1W ATM IV change
+1.34 points from the group median
1W ATM IV level
-8.42 points from the group median
1W RR25 level
+0.63 points from the group median
Relative-value rankings
Leaders and laggards across the same cutoff.
| Metric | 1st | 2nd | 3rd |
|---|---|---|---|
| 1W ATM IV level | SOL · 50.62 | ETH · 43.37 | BTC · 34.95 |
| Daily 1W ATM IV change | BTC · 3.24 | SOL · 1.90 | ETH · 1.78 |
| 1W IV minus 7d realised | BTC · -1.59 | ETH · -3.46 | SOL · unavailable |
| Most call-rich 1W RR25 | SOL · 2.25 | BTC · 1.62 | ETH · 1.36 |
| Most put-rich 1W RR25 | ETH · 1.36 | BTC · 1.62 | SOL · 2.25 |
| 1Y minus 1W curve slope | BTC · unavailable | ETH · unavailable | SOL · unavailable |
| Largest 1Y minus 1W curve change | BTC · unavailable | ETH · unavailable | SOL · unavailable |
| 24h spot performance | ETH · 1.10 | BTC · 0.40 | SOL · unavailable |
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.
BTC and ETH and SOL 30-day implied volatility remained 2.5–3.5 times VIX, while short-window equity correlations remained low.
| Asset | 30d ATM IV | VIX spread | IV / VIX | 20d crypto RV | 20-session SPX RV | RV spread percentile | 30-session correlation |
|---|---|---|---|---|---|---|---|
| BTC | 36.20% | +21.67 vol pts | 2.49× | 50.32% | 8.30% | 87.7 percentile | +0.158 |
| ETH | 49.28% | +34.75 vol pts | 3.39× | 65.32% | 8.30% | 60.4 percentile | +0.029 |
| SOL | 50.73% | +36.20 vol pts | 3.49× | 76.48% | 8.30% | 59.5 percentile | +0.252 |
As of 04 Sept 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 |
|---|---|---|---|---|
| BTC | 34.95% / +3.24 | 36.98% / +1.01 | 38.93% / +0.53 | 40.15% / +0.24 |
| ETH | 43.37% / +1.78 | 49.46% / +0.04 | 52.08% / -0.01 | 54.17% / -0.02 |
| SOL | 50.62% / +1.90 | 51.62% / +0.88 | 51.44% / +0.59 | Unavailable |
05 · Constituent evidence
Audit the independently published source artifacts.
05 Sept 2026, 18:43 UTC
Read the BTC report05 Sept 2026, 18:43 UTC
Read the ETH report05 Sept 2026, 18:43 UTC
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.