01 · Market read
The day across the three live Derivasys markets.
One-week implied volatility rose across all three markets. The largest one-week implied-versus-seven-day realised gap was in BTC, at -6.66 volatility points. The 1W level spread widened to 38.83 points as SOL compressed less sharply.
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
Bitcoin gains without a volatility chase
Bitcoin rose 1.55 per cent over the 24-hour window, but the options market did not chase the move: one-week implied volatility added only 0.19 points and one-month volatility slipped. Skew became less defensive, while seven-day realised volatility remained above the one-week implied measure. The news backdrop offered useful institutional and on-chain context, though neither item provides a convincing explanation for the restrained repricing.
30 August 2026
Bitcoin gains without a volatility chase
Bitcoin’s forward rose as the front of the volatility curve held broadly steady and short-dated skew moved back towards calls, leaving the day more orderly than the spot advance alone might suggest.
Crypto: Sber’s proposed use of Bitcoin, Ether and USDT as collateral added an institutional-adoption thread, while unusually active old Bitcoin wallets supplied a separate on-chain risk marker; neither was treated as the cause of the surface move.
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 2.5–4.7 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 | 36.73% | +22.30 vol pts | 2.55× | 45.92% | 10.58% | percentile rank 74.9% | +0.104 |
| ETH | 48.81% | +34.38 vol pts | 3.38× | 60.97% | 10.58% | percentile rank 46.8% | -0.007 |
| SOL | 67.60% | +53.17 vol pts | 4.68× | 69.20% | 10.58% | percentile rank 45.6% | +0.183 |
As of 28 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 | 33.53% / +0.19 | 34.99% / -0.32 | 37.74% / -0.23 | 40.05% / -0.20 | 42.23% / -0.10 |
| ETH | 45.25% / +1.97 | 49.17% / +0.79 | 52.40% / +0.25 | 54.60% / +0.12 | 56.17% / +0.14 |
| SOL | 72.36% / +2.56 | 67.05% / +0.35 | 61.38% / +0.42 | 59.90% / +0.43 | 59.14% / +0.43 |
05 · Constituent evidence
Audit the independently published source artifacts.
30 Aug 2026, 14:11 UTC
Read the BTC report30 Aug 2026, 14:11 UTC
Read the ETH report30 Aug 2026, 14:11 UTC
Read the SOL reportEvidence, source data and methodology
Major Coins report data
Download the report’s stored cross-asset comparisons, rankings, declared lead evidence and per-asset quality information. Missing analysis remains unavailable.
Original report summary
BTC 1W ATM IV +0.19 points, trading -6.66 points versus seven-day realised; ETH 1W ATM IV +1.97 points, trading -5.91 points versus seven-day realised; SOL 1W ATM IV +2.56 points, trading -4.10 points versus seven-day realised. Each reading uses the same stored surface and realised-volatility evidence as its constituent report.
At report cutoff · Levels and stored endpoint changes
What matters now
Vol: BTC 1W ATM IV 33.53% · Δ +0.19 vol pts; ETH 1W ATM IV 45.25% · Δ +1.97 vol pts; SOL 1W ATM IV 72.36% · Δ +2.56 vol pts
Skew: BTC 1W RR25 -0.46 vol pts · Δ +0.72 vol pts; ETH 1W RR25 -0.08 vol pts · Δ +1.56 vol pts; SOL 1W RR25 4.66 vol pts · Δ +2.73 vol pts
IV level gap: 1W ATM IV level gap 38.83 vol pts (SOL 72.36% versus BTC 33.53%) · SOL minus BTC spread Δ +2.37 vol pts
Vol
BTC 1W ATM IV 33.53% · Δ +0.19 vol ptspercentile rank 7.8% by absolute move · full history (n=128)
ETH 1W ATM IV 45.25% · Δ +1.97 vol pts
SOL 1W ATM IV 72.36% · Δ +2.56 vol pts
Skew
BTC 1W RR25 -0.46 vol pts · Δ +0.72 vol ptspercentile rank 49.2% by absolute move · full history (n=128)
ETH 1W RR25 -0.08 vol pts · Δ +1.56 vol pts
SOL 1W RR25 4.66 vol pts · Δ +2.73 vol pts
Wings
BTC 1W BF25 1.84 vol pts · Δ +0.02 vol ptspercentile rank 2.3% by absolute move · full history (n=128)
ETH 1W BF25 2.66 vol pts · Δ +0.34 vol pts
SOL 1W BF25 4.98 vol pts · Δ -0.29 vol pts
IV versus RV
BTC Unavailable
ETH Unavailable
SOL Unavailable
Unavailable readings: BTC IV versus RV; ETH IV versus RV; SOL IV versus RV. See the report’s data availability notes.
Δ compares the report’s stored surface endpoints. IV versus RV is a level comparison, not a daily change.
Component cutoffs: BTC 30 Aug 2026, 14:11 UTC; ETH 30 Aug 2026, 14:11 UTC; SOL 30 Aug 2026, 14:11 UTC. Each asset is shown separately.
Historical move evidence
BTC 1W ATM IV: percentile rank 7.8% by absolute move · full history (n=128)
BTC 1W RR25: percentile rank 49.2% by absolute move · full history (n=128)
BTC 1W BF25: percentile rank 2.3% by absolute move · full history (n=128)
7D realised volatility · data quality
| Asset | Recorded RV | Status | Coverage / required | Longest gap / maximum |
|---|---|---|---|---|
| BTC | Unavailable | Unavailable | not recorded / not recorded required | not recorded / not recorded maximum |
| ETH | Unavailable | Unavailable | not recorded / not recorded required | not recorded / not recorded maximum |
| SOL | Unavailable | Unavailable | not recorded / not recorded required | not recorded / not recorded maximum |
Thresholds are asset-specific policies recorded in this edition. Each window is assessed independently; returns spanning gaps are excluded. Partial estimates may miss volatility during gaps.
RV coverage and methodology
BTC · Unavailable · Surface cutoff 30 Aug 2026, 14:11:00 UTC · 7D coverage not recorded / not recorded required · largest 7D gap not recorded / not recorded maximum · maximum gap not recorded. RV suppressed — valid 7D coverage was not recorded. Full 7D coverage policy was not recorded.
ETH · Unavailable · Surface cutoff 30 Aug 2026, 14:11:00 UTC · 7D coverage not recorded / not recorded required · largest 7D gap not recorded / not recorded maximum · maximum gap not recorded. RV suppressed — valid 7D coverage was not recorded. Full 7D coverage policy was not recorded.
SOL · Unavailable · Surface cutoff 30 Aug 2026, 14:11:00 UTC · 7D coverage not recorded / not recorded required · largest 7D gap not recorded / not recorded maximum · maximum gap not recorded. RV suppressed — valid 7D coverage was not recorded. Full 7D coverage policy was not recorded.
06 · 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.