Daily ETH options market report · 24-hour comparison

Ether options turn more defensive as short-term put volatility rises

Ether’s options adjustment centred on short-dated skew, with Ether one-week relative put-side volatility increasing while Ether one-week ATM IV declined.

01 · Daily briefing

Macro · Crypto · Options

The day in markets.

Ether one-week RR25 fell 1.81 volatility points to -2.00%, leaving one-week relative put-side volatility richer than one-week call-side volatility. Ether one-week ATM IV fell 1.17 volatility points to 43.30%, while Ether front-end ATM IV across the 1W, 2W and 1M tenors averaged 46.23%, a decline of 0.43 volatility points in Ether front-end ATM IV across the 1W, 2W and 1M tenors. Ether’s 1Y-minus-1W ATM IV slope rose to 12.53 volatility points.

Links identify the underlying reporting. Events are presented as context, not assigned causes.

02 · Options market read

What the volatility surface did.

6 of 6 headline tenors were comparable at both endpoints. The largest ATM IV move was 1W at -1.17 volatility points, to 43.30%.

Derived directly from structured Derivasys surface data

03 · Catalyst check

01 Sept 2026, 16:30 UTC to 02 Sept 2026, 16:30 UTC

Relevant context found; no confirmed catalyst

Relevant market event

1 event was retained after relevance scoring and event-level deduplication.

Confidencelow causal confidence

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

04 · Detailed analysis

What changed across the ETH volatility surface.

Implied versus realised

At the 16:30 UTC cutoff, 1W ATM IV was 43.30%, 1.33 volatility points below seven-day realised volatility of 44.63%; 24-hour realised volatility was 50.83% and 30-day realised volatility was 50.11%.

Front end

Front-end ATM IV decreased, averaging -0.43 volatility points to 46.23% across 1W, 2W and 1M.

Long end

Long-dated ATM IV was broadly unchanged, averaging -0.06 volatility points to 54.71% across 6M and 1Y.

Skew

RR25 moved towards puts, averaging -0.88 volatility points to -0.70% across the six available headline tenors.

Convexity

BF25 increased, averaging +0.19 volatility points to 2.73% across the six available headline tenors.

Largest standard-tenor move

The largest standard-tenor ATM IV move was -1.17 volatility points at 1W, to 43.30%.

Universe roll: added 6SEP26; removed 2SEP26. Comparisons use common expiries only.

05 · Standard-tenor ranking

Largest surface events

01

Largest eligible smile rotation

11SEP26, -5.00 vol pts
02

Largest standard-tenor RR25 move

1W, -1.81 vol pts
03

Largest standard-tenor ATM IV move

1W, -1.17 vol pts
04

Largest standard-tenor BF25 move

2W, +0.46 vol pts
05

Largest eligible SVI sigma move

18SEP26, -0.1491 param
06

Largest eligible SVI rho move

5SEP26, +0.0447 param

06 · ATM volatility

Standard-tenor ATM implied volatility.

TenorCurrent (vol %)Previous (vol %)Change (vol pts)Relative change
1W43.3044.47-1.17 vol pts-2.63%
2W46.4646.56-0.10 vol pts-0.21%
1M48.9248.93-0.01 vol pts-0.02%
3M51.0551.17-0.12 vol pts-0.23%
6M53.5953.73-0.14 vol pts-0.26%
9M55.0455.08-0.04 vol pts-0.07%
1Y55.8355.80+0.03 vol pts+0.05%

07 · Risk reversals

RR25 skew moved most at 1W.

RR25 moved towards puts, averaging -0.88 volatility points to -0.70% across the six available headline tenors. Negative RR25 denotes a richer 25-delta put wing under the call-minus-put convention.

-2.3%-1.5%-0.7%0.1%1.0%1W2W1M3M6M9M1Y
TenorCurrent (vol %)Previous (vol %)Change (vol pts)
1W-2.00-0.19-1.81 vol pts
2W-1.180.34-1.52 vol pts
1M-0.84-0.51-0.33 vol pts
3M-0.300.52-0.82 vol pts
6M-0.160.31-0.47 vol pts
9M0.130.52-0.39 vol pts
1Y0.300.65-0.35 vol pts

08 · Butterflies

BF25 convexity changed most at 2W.

BF25 increased, averaging +0.19 volatility points to 2.73% across the six available headline tenors. BF25 measures the average 25-delta wing premium over ATM IV.

2.1%2.4%2.7%3.0%3.3%1W2W1M3M6M9M1Y
TenorCurrent (vol %)Previous (vol %)Change (vol pts)
1W2.662.33+0.33 vol pts
2W2.722.26+0.46 vol pts
1M2.662.45+0.21 vol pts
3M3.082.90+0.18 vol pts
6M2.842.79+0.05 vol pts
9M2.592.64-0.05 vol pts
1Y2.422.53-0.11 vol pts

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.

1.6d

Smile rotation

4SEP26, -3.62 vol pts
0.6d

ATM IV change

3SEP26, -1.39 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.

41.8%45.7%49.6%53.4%57.3%1W2W1M3M6M9M1Y
ExpiryTime leftForward now (USD)Forward change (USD)ATM IV nowATM IV changeRR25 changeBF25 change
3SEP26Expiry effect0.6 days2,396.8-36.40 USD40.67%-1.39 vol pts+0.05 vol pts-0.57 vol pts
4SEP26Expiry effect1.6 days2,397.16-36.45 USD41.38%-1.94 vol pts-0.76 vol pts-0.38 vol pts
5SEP262.6 days2,397.5-36.55 USD44.22%-0.39 vol pts-0.67 vol pts+0.21 vol pts
11SEP268.6 days2,399.27-36.60 USD44.00%-0.43 vol pts-2.01 vol pts+0.39 vol pts
18SEP2615.6 days2,400.99-36.83 USD46.86%-0.43 vol pts-1.49 vol pts+0.49 vol pts
25SEP2622.6 days2,403.79-36.85 USD48.28%0.00 vol pts-0.05 vol pts+0.09 vol pts
30OCT2657.6 days2,410.45-36.04 USD49.86%-0.24 vol pts-0.99 vol pts+0.39 vol pts
27NOV2685.6 days2,416.11-36.05 USD50.93%-0.14 vol pts-0.84 vol pts+0.22 vol pts
25DEC26113.6 days2,421.04-35.65 USD51.44%-0.14 vol pts-0.68 vol pts+0.04 vol pts
26MAR27204.6 days2,445.21-36.06 USD53.98%-0.16 vol pts-0.44 vol pts+0.04 vol pts
25JUN27295.6 days2,471.93-37.39 USD55.28%-0.03 vol pts-0.38 vol pts-0.06 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.

3SEP26rotation towards puts · wing steepening
-0.30k0.00k+0.30k
4SEP26rotation towards puts · wing steepening
-0.30k0.00k+0.30k
5SEP26rotation towards puts · wing steepening
-0.30k0.00k+0.30k
11SEP26rotation towards puts · wing steepening
-0.30k0.00k+0.30k
18SEP26rotation towards puts · wing steepening
-0.30k0.00k+0.30k
25SEP26parallel shift higher
-0.30k0.00k+0.30k
30OCT26rotation towards puts
-0.30k0.00k+0.30k
27NOV26rotation towards puts
-0.30k0.00k+0.30k
25DEC26rotation towards puts
-0.30k0.00k+0.30k
26MAR27limited movement
-0.30k0.00k+0.30k
25JUN27limited movement
-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.

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 5SEP26; the largest sigma change occurred at 18SEP26.

ExpiryΔ aΔ bΔ rhoΔ mΔ sigmaSmile classification
3SEP26+0.01890-0.03210-0.00250-0.00450+0.02930rotation towards puts, wing steepening
4SEP26+0.02160-0.02620-0.01940-0.00700-0.04220rotation towards puts, wing steepening
5SEP26+0.01690-0.00660+0.04470+0.04020-0.08410rotation towards puts, wing steepening
11SEP26+0.01700-0.00050+0.00840+0.03710-0.10420rotation towards puts, wing steepening
18SEP26+0.02480-0.00090+0.00900+0.04680-0.14910rotation towards puts, wing steepening
25SEP26+0.00480-0.00090+0.00850+0.01020-0.02910parallel shift higher
30OCT26+0.01720-0.00070+0.00630+0.05160-0.09890rotation towards puts
27NOV26+0.00600+0.00050+0.00230+0.03370-0.04110rotation towards puts
25DEC26-0.00200-0.00010+0.01670+0.03420+0.00190rotation towards puts
26MAR27-0.01910+0.01680-0.02270-0.02000+0.02940limited movement
25JUN27-0.03900+0.03090-0.03910-0.07230+0.07460limited movement

Current surface characteristics

Where normalized model Greek intensity is highest.

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

Highest Vega25JUN27, 8.604952 USD / vol pt
Highest Gamma3SEP26, 0.009729 1 / USD
Highest Theta Decay3SEP26, -12.663728 USD / day
Highest Vanna25JUN27, 0.001741 delta / vol pt
Highest Volga25JUN27, -0.963242 USD / vol pt²

Completed-session cross-asset context

Crypto volatility against US equity risk.

ETH 30-day implied volatility was 3.0 times VIX, while its 30-session return correlation with SPX was low at 0.03.

Implied-volatility premium

ETH 30-day ATM IV was 49.23%, against VIX at 16.34: a 32.89-point spread and 3.01× ratio.

Realised-volatility regime

ETH 20-calendar-day realised volatility was 61.62%, versus SPX 20-session realised volatility of 7.37%. The spread ranked at 56.8 percentile of 222 prior observations.

Equity co-movement

Return correlation with SPX was 0.033 over 30 aligned sessions and 0.328 over 60 sessions. VIX9D, VIX and VIX3M closed at 14.33, 16.34 and 18.33.

As of 01 Sept 2026, 20:00 UTC. Latest completed common SPX/VIX/crypto session. Crypto 20-day realised volatility uses sqrt(365); SPX 20-session realised volatility uses sqrt(252).

13 · Methodology and provenance

Generated from measured Derivasys surface data.

Current snapshot
02 Sept 2026, 16:30 UTC
Comparison snapshot
01 Sept 2026, 16:30 UTC
Source
Derivasys proprietary historical SVI surface and canonical ETH index databases
Realised volatility
Annualised root-mean-square of one-minute canonical ETH-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 interpolated independently at 1W, 2W, 1M, 3M, 6M, 9M and 1Y; headline rankings prioritise 1W, 2W, 1M, 3M, 6M and 1Y.
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-ETH ATM-forward call, zero rate, fitted SVI IV
Catalyst policy
Only sufficiently relevant, reliably sourced events are shown; otherwise no catalyst is assigned.