01 · Market read
The day across the three live Derivasys markets.
One-week implied volatility fell across all three markets. The largest one-week implied-versus-seven-day realised gap was in ETH, at -10.82 volatility points. The 1W level spread widened to 38.35 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 weakens while front-end volatility retreats
Bitcoin fell 1.76 per cent over the 24-hour window as the market continued to digest Kevin Warsh’s warning that inflation could require tighter policy. The options response was more nuanced than the spot move: one-week implied volatility fell 3.69 points to 32.85 per cent, while two-week risk reversal moved sharply towards puts. One-week implied volatility now sits below seven-day realised volatility but above the quieter 24-hour measure, leaving the curve steeper rather than uniformly subdued.
29 August 2026
Bitcoin weakens while front-end volatility retreats
A softer Bitcoin price and more defensive short-dated skew arrived alongside a further fall in implied volatility, with the front of the curve repricing much more sharply than longer maturities.
Macro: The market continued to absorb Kevin Warsh’s Jackson Hole message that persistently high inflation could put US interest-rate increases back in play, a restrictive backdrop for risk assets.
Crypto: Bitcoin’s ETF-supported advance lost momentum after roughly $3bn of recent fund demand, while the token finished the report window lower and its short-dated options surface became cheaper and more put-rich.
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 | 32.85% / -3.69 | 35.43% / -1.93 | 37.93% / -1.27 | 40.15% / -1.02 | 42.33% / -0.54 |
| ETH | 43.44% / -2.03 | 48.73% / -1.62 | 52.27% / -0.72 | 54.55% / -0.38 | 56.11% / -0.03 |
| SOL | 71.20% / -1.58 | 66.24% / -2.13 | 61.04% / -1.18 | 59.70% / -0.91 | 59.01% / -0.78 |
05 · Constituent evidence
Audit the independently published source artifacts.
29 Aug 2026, 15:33 UTC
Read the BTC report29 Aug 2026, 15:33 UTC
Read the ETH report29 Aug 2026, 18:14 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 -3.69 points, trading -8.63 points versus seven-day realised; ETH 1W ATM IV -2.03 points, trading -10.82 points versus seven-day realised; SOL 1W ATM IV -1.58 points, trading -9.53 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 32.85% · Δ -3.69 vol pts; ETH 1W ATM IV 43.44% · Δ -2.03 vol pts; SOL 1W ATM IV 71.20% · Δ -1.58 vol pts
Skew: BTC 1W RR25 -1.03 vol pts · Δ -1.71 vol pts; ETH 1W RR25 -1.13 vol pts · Δ -2.02 vol pts; SOL 1W RR25 3.38 vol pts · Δ +1.79 vol pts
Vol
BTC 1W ATM IV 32.85% · Δ -3.69 vol ptspercentile rank 85.8% by absolute move · full history (n=127)
ETH 1W ATM IV 43.44% · Δ -2.03 vol pts
SOL 1W ATM IV 71.20% · Δ -1.58 vol pts
Skew
BTC 1W RR25 -1.03 vol pts · Δ -1.71 vol ptspercentile rank 84.3% by absolute move · full history (n=127)
ETH 1W RR25 -1.13 vol pts · Δ -2.02 vol pts
SOL 1W RR25 3.38 vol pts · Δ +1.79 vol pts
Wings
BTC 1W BF25 1.97 vol pts · Δ -0.09 vol ptspercentile rank 43.3% by absolute move · 30-day window (n=30)
ETH 1W BF25 2.29 vol pts · Δ -0.20 vol pts
SOL 1W BF25 4.88 vol pts · Δ -0.79 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 29 Aug 2026, 15:33 UTC; ETH 29 Aug 2026, 15:33 UTC; SOL 29 Aug 2026, 18:14 UTC. Each asset is shown separately.
Historical move evidence
BTC 1W ATM IV: percentile rank 85.8% by absolute move · full history (n=127)
BTC 1W RR25: percentile rank 84.3% by absolute move · full history (n=127)
BTC 1W BF25: percentile rank 43.3% by absolute move · 30-day window (n=30)
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 29 Aug 2026, 15:33:00 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 29 Aug 2026, 15:33:00 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 29 Aug 2026, 18:14:00 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.