Daily SOL options market report · 24-hour comparison

Solana options turn call-rich in one-week skew

SOL 1W RR25 rose 3.61 vol points to 2.49 vol points over the daily comparison.

Snapshot · 29 Sept 2026, 21:59 UTC

  • SOLSpot-index 24h +1.03%1W ATM IV 56.45%1W RR25 +2.49 vol pts1W BF25 +3.77 vol pts1W IV − 7D RV -3.94 vol ptsPartial RV: 99.83% coverage, longest gap 16 min; gaps may miss volatility

Notable move: SOL 1W RR25 Δ +3.61 vol pts → +2.49 vol pts · percentile rank 86.7% by absolute move · 30-day window (n=30).

Solana options turn call-rich in one-week skew. RR25 term structure from Derivasys data.
Source: Derivasys options data. RR25; unsupported tenors remain blank. Cite this report.
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01 · Daily briefing

Macro · Crypto · Options

The day in markets.

Solana funds share ETF slowdown

Solana appeared in broader crypto ETF reporting as inflows slowed while the funds' inflow streaks held.

Macro

No qualifying macro event was retained for this report window.

Crypto

Cointelegraph reported slower US spot crypto ETF inflows across Bitcoin, Ether, Solana and XRP funds, while inflow streaks continued.

Links identify the underlying reporting for retained events; entries without a retained link are marked.

02 · Options market read

What the volatility surface did.

3 of 6 headline tenors were comparable at both endpoints. The largest ATM IV move was 1M at +1.06 volatility points, to 55.50%.

RV observation windows

The 24-hour, seven-day and 30-day RV windows are assessed independently using observed one-minute index returns, annualised on a 365-day basis. Recorded minimums: at least 99.5% coverage over 24 hours, 99.5% coverage over seven days, 99.5% coverage over 30 days, with no gap longer than 60 minutes. Returns spanning gaps are excluded, not interpolated; unavailable windows remain unreported. The exact 24-hour spot return requires prices at both endpoints.

Derived directly from structured Derivasys surface data

03 · Catalyst check

28 Sept 2026, 21:59 UTC to 29 Sept 2026, 21:59 UTC

Relevant context found; no confirmed catalyst

Relevant market event

1 relevant event was retained for the comparison window.

Confidencelow causal confidence

News is presented as contextual association unless the structured evidence supports a stronger relationship.

04 · Detailed analysis

What changed across the SOL volatility surface.

Implied versus realised

At the 21:59 UTC cutoff, 1W ATM IV was 56.45%, 3.94 volatility points below seven-day realised volatility of 60.39%; 24-hour realised volatility was 58.62% and 30-day realised volatility was 58.29%.

Front end

Front-end ATM IV increased, averaging +0.41 volatility points to 55.92% across 1W, 2W and 1M.

Long end

Long-dated ATM IV is unavailable because comparable observations were not present at both snapshots.

Skew

RR25 moved towards calls, averaging +2.65 volatility points to 2.52 volatility points across the three available headline tenors.

Convexity

BF25 was broadly unchanged, averaging +0.08 volatility points to 3.79 volatility points across the three available headline tenors.

Largest standard-tenor move

The largest standard-tenor ATM IV move was +1.06 volatility points at 1M, to 55.50%.

Universe roll: added 1OCT26; removed 29SEP26. Comparisons use common expiries only.

05 · Standard-tenor ranking

Largest surface events

01

Largest eligible smile rotation

2OCT26, +9.08 vol pts
02

Largest standard-tenor RR25 move

1W, +3.61 vol pts
03

Largest standard-tenor ATM IV move

1M, +1.06 vol pts
04

Largest eligible SVI rho move

2OCT26, +0.1128 param
05

Largest standard-tenor BF25 move

1W, +0.09 vol pts
06

Largest eligible SVI sigma move

25DEC26, +0.0666 param

06 · ATM volatility

Standard-tenor ATM implied volatility.

TenorCurrent (vol %)Comparison snapshot (vol %)Change (vol pts)Relative change
1W56.4556.91-0.46 vol pts-0.81%
2W55.8055.17+0.63 vol pts+1.14%
1M55.5054.44+1.06 vol pts+1.95%
3MUnavailableUnavailableUnavailableUnavailable
6MUnavailableUnavailableUnavailableUnavailable
9MUnavailableUnavailableUnavailableUnavailable
1YUnavailableUnavailableUnavailableUnavailable

Source: Derivasys Research — structured data

07 · Risk reversals

RR25 skew moved most at 1W.

RR25 moved towards calls, averaging +2.65 volatility points to 2.52 volatility points across the three available headline tenors. Negative RR25 denotes a richer 25-delta put wing under the call-minus-put convention.

-1.6 vol pts-0.4 vol pts0.7 vol pts1.9 vol pts3.0 vol pts1W2W1M
TenorCurrent (vol pts)Comparison snapshot (vol pts)Change (vol pts)
1W2.49-1.12+3.61 vol pts
2W2.59-0.15+2.74 vol pts
1M2.480.89+1.59 vol pts
3MUnavailableUnavailableUnavailable
6MUnavailableUnavailableUnavailable
9MUnavailableUnavailableUnavailable
1YUnavailableUnavailableUnavailable

Source: Derivasys Research — structured data

08 · Butterflies

BF25 convexity changed most at 1W.

BF25 was broadly unchanged, averaging +0.08 volatility points to 3.79 volatility points across the three available headline tenors. BF25 measures the average 25-delta wing premium over ATM IV.

3.5 vol pts3.6 vol pts3.8 vol pts3.9 vol pts4.0 vol pts1W2W1M
TenorCurrent (vol pts)Comparison snapshot (vol pts)Change (vol pts)
1W3.773.68+0.09 vol pts
2W3.753.67+0.08 vol pts
1M3.843.77+0.07 vol pts
3MUnavailableUnavailableUnavailable
6MUnavailableUnavailableUnavailable
9MUnavailableUnavailableUnavailable
1YUnavailableUnavailableUnavailable

Source: Derivasys Research — structured data

09 · Expiry effects

Near-settlement moves, shown with context.

Contracts with fewer than 2 full days to expiry remain in the tables but are excluded from headline rankings. Settlement proximity, time decay, changing liquidity and fewer quotes can exaggerate their changes.

0.4d

Smile rotation

30SEP26, +32.84 vol pts

10 · Volatility term structure

Today against the previous 24-hour snapshot.

Only fixed tenors bracketed by listed expiries at both snapshots are charted. The listed-expiry table preserves the observable exchange maturities underneath those interpolated points.

54.1%54.9%55.7%56.4%57.2%1W2W1M

Suppressed outside the observable listed-expiry range: 3M, 6M, 9M, 1Y.

ExpiryTime leftForward now (USD)Forward change (USD)ATM IV nowATM IV changeRR25 changeBF25 change
30SEP26Expiry effect0.4 days118.8+1.02 USD56.72%-4.02 vol pts+7.02 vol pts-1.46 vol pts
2OCT262.4 days118.81+0.99 USD59.29%-1.52 vol pts+3.13 vol pts+0.37 vol pts
9OCT269.4 days118.86+0.98 USD56.06%+0.42 vol pts+3.50 vol pts+0.10 vol pts
30OCT2630.4 days118.98+0.94 USD55.50%+1.09 vol pts+1.55 vol pts+0.07 vol pts
25DEC2686.4 days119.45+1.06 USD55.19%+1.22 vol pts+0.65 vol pts-0.07 vol pts

11 · Smile movement

Reconstructed SVI smiles for every common expiry.

Each overlay uses the stored five-parameter SVI fit and the snapshot-specific time to expiry. Ultra-short expiries are displayed but do not determine the headline ranking.

30SEP26rotation towards calls · wing steepening
-0.30k0.00k+0.30k
2OCT26rotation towards calls · wing steepening
-0.30k0.00k+0.30k
9OCT26rotation towards calls · wing steepening
-0.30k0.00k+0.30k
30OCT26rotation towards calls
-0.30k0.00k+0.30k
25DEC26parallel shift higher · rotation towards calls
-0.30k0.00k+0.30k

Surface movement heatmap

Each cell is the fitted IV change in volatility points. Rows are listed expiries; columns run from the put wing through ATM to the call wing.

Evidence, source data and methodology
Report comparison baseline → current snapshot
2026-09-28 21:59:00 UTC → 2026-09-29 21:59:00 UTC

Changes use these stored market-snapshot baselines. The comparison baseline may differ from the snapshot used in the previous published edition.

Lead signal · 29 Sept 2026, 21:59 UTC

The measurement behind the lead chart

SOL 1W RR25 2.49 vol pts · Δ +3.61 vol pts

SOL percentile rank 86.7% by absolute move · 30-day window (n=30)

Original report summary

Solana one-week call-minus-put RR25 rose 3.61 volatility points to +2.49 volatility points over the 24-hour observation window ending September 29, according to Derivasys data. The adjustment left call-side implied volatility above comparable put-side volatility. Solana's one-week RR25 move registered at the 86.7 percentile of comparable changes over the preceding month, marking a notable relative shift between the wings. This measures the balance of call and put volatility, without establishing investor demand, positioning or an absolute increase in call IV.

At report cutoff · Levels and stored endpoint changes

What matters now

Vol: SOL 1W ATM IV 56.45% · Δ -0.46 vol pts

Skew: SOL 1W RR25 2.49 vol pts · Δ +3.61 vol pts

Relative value: SOL 1W IV 56.45% / 7D RV 60.39% · spread -3.94 vol pts (partial RV; coverage below)

Vol

SOL 1W ATM IV 56.45% · Δ -0.46 vol ptspercentile rank 16.7% by absolute move · 30-day window (n=30)

Skew

SOL 1W RR25 2.49 vol pts · Δ +3.61 vol ptspercentile rank 86.7% by absolute move · 30-day window (n=30)

Wings

SOL 1W BF25 3.77 vol pts · Δ +0.09 vol ptspercentile rank 20.0% by absolute move · 30-day window (n=30)

IV versus RV

SOL 1W IV 56.45% / 7D RV 60.39% · spread -3.94 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.

Historical move evidence

SOL 1W ATM IV: percentile rank 16.7% by absolute move · 30-day window (n=30)

SOL 1W RR25: percentile rank 86.7% by absolute move · 30-day window (n=30)

SOL 1W BF25: percentile rank 20.0% by absolute move · 30-day window (n=30)

12 · Technical appendix

Model parameters and normalized Greeks.

These diagnostics preserve the fitted-surface audit trail without competing with the main market story.

Show SVI parameter changes and normalized Greeks

SVI diagnostics

Daily movement in a, b, rho, m and sigma.

Among ranking-eligible expiries, the largest absolute rho change occurred at 2OCT26; the largest sigma change occurred at 25DEC26.

ExpiryΔ aΔ bΔ rhoΔ mΔ sigmaSmile classification
30SEP26+0.06650-0.08840+0.13810+0.04830-0.18650rotation towards calls, wing steepening
2OCT26+0.00610+0.00100+0.11280+0.05470-0.05030rotation towards calls, wing steepening
9OCT26-0.01930+0.01780-0.05910-0.07340+0.04130rotation towards calls, wing steepening
30OCT26-0.01740+0.01620-0.06910-0.06970+0.04280rotation towards calls
25DEC26-0.02470+0.02450-0.07910-0.07110+0.06660parallel shift higher, rotation towards calls

Current surface characteristics

Where normalized model Greek intensity is highest.

These are comparable Black-forward Greeks for a one-SOL ATM-forward call at each listed expiry—not portfolio exposure, open interest or a prediction of dealer positioning.

Highest Vega25DEC26, 0.229792 USD / vol pt
Highest Gamma30SEP26, 0.175074 1 / USD
Highest Theta Decay30SEP26, -1.088938 USD / day
Highest Vanna25DEC26, 0.000962 delta / vol pt
Highest Volga25DEC26, -0.000075 USD / vol pt²

7D realised volatility · data quality

AssetRecorded RVStatusCoverage / requiredLongest gap / maximum
SOL60.39%Partial99.8313% / 99.5% required16 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

SOL · Surface cutoff 29 Sept 2026, 21:59:00 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": "2026-09-29T21:59:00+00:00",
  "spotWindowStart": "2026-09-28T21:59:00+00:00",
  "spotMetric": "spot-index return",
  "spotUnit": "percent",
  "spotMove24hPercent": 1.03,
  "rv24hPercent": 58.62,
  "rv7dPercent": 60.39,
  "rv30dPercent": 58.29,
  "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": 56.45,
  "oneWeekIvMinus7dRvPoints": -3.94,
  "oneWeekIvMinus24hRvPoints": -2.17,
  "oneWeekIvMinus30dRvPoints": -1.84
}

Source data JSON

13 · Methodology and provenance

Generated from measured Derivasys surface data.

Current snapshot
29 Sept 2026, 21:59 UTC
Comparison snapshot
28 Sept 2026, 21:59 UTC
Source
Derivasys proprietary historical SVI surface and canonical SOL index databases
Realised volatility
Annualised root-mean-square of one-minute canonical SOL-USD index log returns using a 365-day basis; all windows end at the current snapshot.
Comparison window
Nearest successful surface snapshots approximately 24 hours apart
RR convention
25-delta call IV minus 25-delta put IV
BF convention
Average 25-delta wing IV minus ATM forward IV
Fixed tenors
Fixed-tenor measures are published only when listed expiries bracket the target at both comparison snapshots. Targets outside either observable range are suppressed, not extrapolated; headline rankings use only supported tenors.
Smile reconstruction
Listed-expiry smiles are reconstructed from stored SVI total-variance parameters on a fixed log-moneyness grid.
Ultra-short expiries
Expiries with fewer than 2 full days remaining stay in detailed tables but are excluded from headline rankings. Settlement proximity, time decay, changing liquidity and fewer quotes can exaggerate their changes.
Greek normalization
Black forward Greeks for a normalized one-SOL ATM-forward call, zero rate, fitted SVI IV
Catalyst policy
Only sufficiently relevant, reliably sourced events are shown; otherwise no catalyst is assigned.

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