01 · Market read
The day across the three live Derivasys markets.
Skew separated even as volatility levels converged. Solana one-week call-minus-put RR25 rose 0.22 volatility points to +2.22 volatility points. Ether one-week call-minus-put RR25 fell 0.65 volatility points to -2.95 volatility points. The Solana–Ether one-week call-minus-put RR25 gap widened by 0.87 volatility points to 5.17 volatility points. Calls remained richer than puts in Solana and puts richer than calls in Ether. Alongside that divergence, [CoinDesk](https://www.coindesk.com/tech/2026/10/01/metamask-security-incident-forces-ethereum-staking-exits-with-lido-warning-of-lost-rewards) reported that a MetaMask security incident forced Ethereum staking exits, with no funds at risk according to its developing account.
What is unusual today?
One-week ATM IV level dispersion: Compression: 23.10 vol points; signed spread change -2.41 vol points. Historical percentile rank 69%. Stored one-week tenor comparison at this cutoff across 3 assets. 32 historical observations; minimum 20.
Daily one-week ATM IV-change dispersion: The cross-asset spread is 2.41 vol points. Historical percentile rank 41%. Stored daily changes across 3 assets. 32 historical observations; minimum 20.
SOL stands apart: 1W ATM IV change is 2.29 vol points below the group median. Stored cross-section of 3 assets at this report cutoff.
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 23.10 vol pts; daily one-week ATM IV changes span 2.41 vol pts across the complex.
ETH has the highest 1W IV-minus-7D-RV spread at +1.45 vol points; SOL has the lowest at -6.65 vol points. The range between these spreads is 8.10 vol points.
Aligned 24-hour spot correlations: BTC/ETH 0.87 (25 observations).
Historical cross-sectional readings: 1W ATM IV level dispersion percentile rank 68.8%; Daily 1W ATM IV-change dispersion percentile rank 40.6%; 1W RR25 dispersion percentile rank 84.4%; IV-minus-realised dispersion percentile rank 84.0%.
1W ATM IV change
-2.29 points from the group median
1W ATM IV level
-11.92 points from the group median
1W RR25 level
+3.54 points from the group median
1W IV minus 7D realised volatility
-4.05 points from the group median
Relative-value rankings
Leaders and laggards across the same cutoff.
| Metric | 1st | 2nd | 3rd |
|---|---|---|---|
| 1W ATM IV level | SOL · 53.09 | ETH · 41.91 | BTC · 29.99 |
| Daily 1W ATM IV change | BTC · -0.87 | ETH · -0.99 | SOL · -3.28 |
| 1W IV minus 7d realised | ETH · 1.45 | BTC · -2.60 | SOL · -6.65 |
| Highest 1W RR25 | SOL · 2.22 | BTC · -1.32 | ETH · -2.95 |
| Lowest 1W RR25 | ETH · -2.95 | BTC · -1.32 | SOL · 2.22 |
| 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 | BTC · 0.09 | ETH · 0.03 | SOL · -1.77 |
02 · Macro and crypto diary
Macro and crypto context
1 October 2026
Crypto: The [Solana Foundation](https://solana.com/news/open-usd-is-live-on-solana) announced Open USD's launch, offering businesses free minting and burning 1:1 against dollars, with over $1 billion committed to liquidity. [Cointelegraph](https://cointelegraph.com/markets/bitcoin-fights-local-uptrend-us-bond-yields-drop-from-new-24-year-highs) separately reported sharply falling US bond yields around Thursday's Wall Street open as Bitcoin sought to preserve higher lows. These developments provide context, but no measured reaction establishes them as causes of the options repricing; the Open USD event reaction is 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 2.1–3.3 times VIX, while short-window equity correlations remained mixed.
| Asset | 30d ATM IV | VIX spread | IV / VIX | 20d crypto RV | 20-session SPX RV | RV spread percentile | 30-session correlation |
|---|---|---|---|---|---|---|---|
| BTC | 33.64% | +17.30 vol pts | 2.06× | 43.44% | 10.79% | percentile rank 67.3% | +0.456 |
| ETH | 47.59% | +31.25 vol pts | 2.91× | 48.56% | 10.79% | percentile rank 36.4% | +0.335 |
| SOL | 54.41% | +38.07 vol pts | 3.33× | 73.50% | 10.79% | percentile rank 50.6% | +0.498 |
As of 30 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 | 29.99% / -0.87 | 33.94% / +0.50 | 36.64% / -0.12 | 37.61% / -0.11 |
| ETH | 41.91% / -0.99 | 47.67% / -0.61 | 51.51% / -0.20 | 53.35% / -0.12 |
| SOL | 53.09% / -3.28 | 54.28% / -1.32 | Unavailable | Unavailable |
05 · Constituent evidence
Audit the independently published source artifacts.
01 Oct 2026, 16:30 UTC
Read the BTC report01 Oct 2026, 16:30 UTC
Read the ETH report01 Oct 2026, 16:30 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.
Lead signal · 1 Oct 2026, 16:30 UTC
The measurement behind the lead chart
BTC 1W IV 29.99% / 7D RV 32.59% · spread -2.60 vol pts
ETH 1W IV 41.91% / 7D RV 40.46% · spread +1.45 vol pts
SOL 1W IV 53.09% / 7D RV 59.74% · spread -6.65 vol pts · Partial RV: 99.83% coverage, longest gap 16 min; gaps may miss volatility
Original report summary
Derivasys data at October 1, 16:30 UTC show the Solana–Bitcoin one-week ATM implied-volatility gap narrowing by 2.41 volatility points to 23.10 points, while the Solana–Ether skew gap widened.
At report cutoff · Levels and stored endpoint changes
What matters now
Vol: BTC 1W ATM IV 29.99% · Δ -0.87 vol pts; ETH 1W ATM IV 41.91% · Δ -0.99 vol pts; SOL 1W ATM IV 53.09% · Δ -3.28 vol pts
Skew: BTC 1W RR25 -1.32 vol pts · Δ -0.57 vol pts; ETH 1W RR25 -2.95 vol pts · Δ -0.65 vol pts; SOL 1W RR25 2.22 vol pts · Δ +0.22 vol pts
Relative value: BTC 1W IV 29.99% / 7D RV 32.59% · spread -2.60 vol pts; ETH 1W IV 41.91% / 7D RV 40.46% · spread +1.45 vol pts; SOL 1W IV 53.09% / 7D RV 59.74% · spread -6.65 vol pts (partial RV; coverage below)
Vol
BTC 1W ATM IV 29.99% · Δ -0.87 vol ptspercentile rank 29.4% by absolute move · full history (n=160)
ETH 1W ATM IV 41.91% · Δ -0.99 vol ptspercentile rank 20.5% by absolute move · full history (n=44)
SOL 1W ATM IV 53.09% · Δ -3.28 vol ptspercentile rank 73.3% by absolute move · 30-day window (n=30)
Skew
BTC 1W RR25 -1.32 vol pts · Δ -0.57 vol ptspercentile rank 40.0% by absolute move · full history (n=160)
ETH 1W RR25 -2.95 vol pts · Δ -0.65 vol ptspercentile rank 36.7% by absolute move · 30-day window (n=30)
SOL 1W RR25 2.22 vol pts · Δ +0.22 vol ptspercentile rank 8.8% by absolute move · full history (n=34)
Wings
BTC 1W BF25 1.96 vol pts · Δ +0.11 vol ptspercentile rank 40.0% by absolute move · full history (n=160)
ETH 1W BF25 3.05 vol pts · Δ +0.53 vol ptspercentile rank 90.0% by absolute move · 30-day window (n=30)
SOL 1W BF25 2.58 vol pts · Δ -0.80 vol ptspercentile rank 86.7% by absolute move · 30-day window (n=30)
IV versus RV
BTC 1W IV 29.99% / 7D RV 32.59% · spread -2.60 vol pts
ETH 1W IV 41.91% / 7D RV 40.46% · spread +1.45 vol pts
SOL 1W IV 53.09% / 7D RV 59.74% · spread -6.65 vol pts · Partial RV: 99.83% coverage, longest gap 16 min; gaps may miss volatility
Δ compares the report’s stored surface endpoints. IV versus RV is a level comparison, not a daily change.
Component cutoffs: BTC 1 Oct 2026, 16:30 UTC; ETH 1 Oct 2026, 16:30 UTC; SOL 1 Oct 2026, 16:30 UTC. Each asset is shown separately.
Historical move evidence
BTC 1W ATM IV: percentile rank 29.4% by absolute move · full history (n=160)
BTC 1W RR25: percentile rank 40.0% by absolute move · full history (n=160)
BTC 1W BF25: percentile rank 40.0% by absolute move · full history (n=160)
ETH 1W ATM IV: percentile rank 20.5% by absolute move · full history (n=44)
ETH 1W RR25: percentile rank 36.7% by absolute move · 30-day window (n=30)
ETH 1W BF25: percentile rank 90.0% by absolute move · 30-day window (n=30)
SOL 1W ATM IV: percentile rank 73.3% by absolute move · 30-day window (n=30)
SOL 1W RR25: percentile rank 8.8% by absolute move · full history (n=34)
SOL 1W BF25: percentile rank 86.7% by absolute move · 30-day window (n=30)
7D realised volatility · data quality
| Asset | Recorded RV | Status | Coverage / required | Longest gap / maximum |
|---|---|---|---|---|
| BTC | 32.59% | Available | 100% / 97% required | 0 min / 60 min maximum |
| ETH | 40.46% | Available | 100% / 99.5% required | 0 min / 60 min maximum |
| SOL | 59.74% | Partial | 99.8313% / 99.5% required | 16 min / 60 min 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.
Full RV evidence and methodology
BTC · Surface cutoff 01 Oct 2026, 16:30:00 UTC.
{
"source": "canonical/BTC-USD-INDEX (DERIBIT and OKX indexes)",
"fallbackObservations": 90,
"fallbackPolicy": "Missing canonical minutes use the stored Deribit index first, then the stored OKX index; canonical bars always take precedence.",
"samplingInterval": "1 minute",
"annualizationBasis": "365 days",
"windowEnd": "2026-10-01T16:30:00+00:00",
"spotWindowStart": "2026-09-30T16:30:00+00:00",
"spotMetric": "spot-index return",
"spotUnit": "percent",
"spotMove24hPercent": 0.09,
"rv24hPercent": 32.61,
"rv7dPercent": 32.59,
"rv30dPercent": 35.28,
"observations": {
"24h": 1440,
"7d": 10080,
"30d": 43200
},
"coverage": {
"24h": {
"status": "complete",
"observedReturns": 1440,
"expectedReturns": 1440,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
},
"7d": {
"status": "complete",
"observedReturns": 10080,
"expectedReturns": 10080,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
},
"30d": {
"status": "complete",
"observedReturns": 43200,
"expectedReturns": 43200,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
}
},
"coveragePolicy": {
"version": "observed-minute-returns-v1",
"minimumCoveragePercent": null,
"minimumCoveragePercentByWindow": {
"24h": 98,
"7d": 97,
"30d": 99.5
},
"maximumMissingRunMinutes": 60,
"methodology": "Each RV window qualifies independently. RV annualises the mean squared observed one-minute log return; returns spanning gaps are excluded, not interpolated or zero-filled. Partial estimates assume observed minutes are representative and may miss volatility during gaps."
},
"spotUnavailableReason": null,
"oneWeekAtmIvPercent": 29.99,
"oneWeekIvMinus7dRvPoints": -2.6,
"oneWeekIvMinus24hRvPoints": -2.62,
"oneWeekIvMinus30dRvPoints": -5.29
}ETH · Surface cutoff 01 Oct 2026, 16:30:00 UTC.
{
"source": "canonical/ETH-USD-INDEX (DERIBIT and OKX indexes)",
"fallbackObservations": 88,
"fallbackPolicy": "Missing canonical minutes use the stored Deribit index first, then the stored OKX index; canonical bars always take precedence.",
"samplingInterval": "1 minute",
"annualizationBasis": "365 days",
"windowEnd": "2026-10-01T16:30:00+00:00",
"spotWindowStart": "2026-09-30T16:30:00+00:00",
"spotMetric": "spot-index return",
"spotUnit": "percent",
"spotMove24hPercent": 0.03,
"rv24hPercent": 39.59,
"rv7dPercent": 40.46,
"rv30dPercent": 47.54,
"observations": {
"24h": 1440,
"7d": 10080,
"30d": 43200
},
"coverage": {
"24h": {
"status": "complete",
"observedReturns": 1440,
"expectedReturns": 1440,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
},
"7d": {
"status": "complete",
"observedReturns": 10080,
"expectedReturns": 10080,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
},
"30d": {
"status": "complete",
"observedReturns": 43200,
"expectedReturns": 43200,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
}
},
"coveragePolicy": {
"version": "observed-minute-returns-v1",
"minimumCoveragePercent": 99.5,
"minimumCoveragePercentByWindow": {
"24h": 99.5,
"7d": 99.5,
"30d": 99.5
},
"maximumMissingRunMinutes": 60,
"methodology": "Each RV window qualifies independently. RV annualises the mean squared observed one-minute log return; returns spanning gaps are excluded, not interpolated or zero-filled. Partial estimates assume observed minutes are representative and may miss volatility during gaps."
},
"spotUnavailableReason": null,
"oneWeekAtmIvPercent": 41.91,
"oneWeekIvMinus7dRvPoints": 1.45,
"oneWeekIvMinus24hRvPoints": 2.32,
"oneWeekIvMinus30dRvPoints": -5.63
}SOL · Surface cutoff 01 Oct 2026, 16:30:00 UTC. Partial estimate: gaps may miss volatility.
{
"source": "canonical/SOL-USDC-INDEX (DERIBIT and OKX indexes)",
"fallbackObservations": 0,
"fallbackPolicy": "Missing canonical minutes use the stored Deribit index first, then the stored OKX index; canonical bars always take precedence.",
"samplingInterval": "1 minute",
"annualizationBasis": "365 days",
"windowEnd": "2026-10-01T16:30:00+00:00",
"spotWindowStart": "2026-09-30T16:30:00+00:00",
"spotMetric": "spot-index return",
"spotUnit": "percent",
"spotMove24hPercent": -1.77,
"rv24hPercent": 49.63,
"rv7dPercent": 59.74,
"rv30dPercent": 58.3,
"observations": {
"24h": 1440,
"7d": 10063,
"30d": 43109
},
"coverage": {
"24h": {
"status": "complete",
"observedReturns": 1440,
"expectedReturns": 1440,
"coveragePercent": 100,
"missingPriceMinutes": 0,
"missingIntervals": 0,
"largestMissingRunMinutes": 0,
"unavailableReason": null
},
"7d": {
"status": "partial",
"observedReturns": 10063,
"expectedReturns": 10080,
"coveragePercent": 99.8313,
"missingPriceMinutes": 16,
"missingIntervals": 1,
"largestMissingRunMinutes": 16,
"unavailableReason": null
},
"30d": {
"status": "partial",
"observedReturns": 43109,
"expectedReturns": 43200,
"coveragePercent": 99.7894,
"missingPriceMinutes": 88,
"missingIntervals": 3,
"largestMissingRunMinutes": 37,
"unavailableReason": null
}
},
"coveragePolicy": {
"version": "observed-minute-returns-v1",
"minimumCoveragePercent": 99.5,
"minimumCoveragePercentByWindow": {
"24h": 99.5,
"7d": 99.5,
"30d": 99.5
},
"maximumMissingRunMinutes": 60,
"methodology": "Each RV window qualifies independently. RV annualises the mean squared observed one-minute log return; returns spanning gaps are excluded, not interpolated or zero-filled. Partial estimates assume observed minutes are representative and may miss volatility during gaps."
},
"spotUnavailableReason": null,
"oneWeekAtmIvPercent": 53.09,
"oneWeekIvMinus7dRvPoints": -6.65,
"oneWeekIvMinus24hRvPoints": 3.46,
"oneWeekIvMinus30dRvPoints": -5.21
}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.