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Volreport for Week 39, 2026 (Sep 21 – Sep 25)

XRP screens cheapest to own this week (IV−RV -29), while SPCX is the most expensive (+98). 25Δ risk-reversals stay negative on BTC, SPCX — the market paying up for downside, leaving calls the cheaper wing. Tokenised gold (XAUT) prints its own ~21 vol — a calm, low-beta anchor against the crypto names.

Vol Value Scoreboard

IV(30d) − RV(30d), ranked cheapest → most expensive
AssetSpot1w %RV 30dIV 30dIV − RVVerdict
ETHEther$2,694+3.2%56.446.8−9.6Cheap
BTCBitcoin$84,604+4.6%38.635.3−3.3Cheap
XRPXRP$1.55+10.7%102.072.8−29.2Cheap
SOLSolana$117+4.2%80.151.0−29.1Cheap
XAUTTether Gold$4,289−2%21.420.6−0.8Fair
SPCXSpaceX$149−2.1%42.2131.2+98.0Expensive

Cheapest of the week

Realized-vol cone vs current implied
XRPBuy of the week

Realized-vol percentile envelope across trailing windows · current implied vol overlaid · XRP · liquid alt

Realized range (min–max)Middle half (p25–p75)Median realizedImplied today
20406080100120140160180200IV10d20d30d60d90d180d

Implied (72.8) sits +20.2 vols vs the 30-day realized median (52.6) — reads expensive to own.

Reading the tiers below: the 25Δ Risk Reversal

A 25Δ risk reversal compares two equally out-of-the-money options — a 25-delta call and a 25-delta put — and takes the difference in their implied vol. A negative number means puts cost more: the market is paying up for downside protection, and calls are the relatively cheap wing. A positive number is the reverse — calls cost more, puts are the cheap wing.

Tier 1 — Liquid listed options

ETH
Ether · ETH index + listed options
Cheap
Spot$2,694
1w+3.2%
RV 30d56.4
IV 30d46.8
25Δ RR−0.1

ETH gained 3.2% on the week; 30-day realized cooled 60→56. Own-book 30-day implied at 47 screens 10 vols under realized — vol is cheap to own here; 25Δ risk-reversal near flat (-0.1) — calls and puts level.

IV term structure, days → vol
1d2d3d4d7d14d21d35d63d91d
25Δ risk reversal · call IV − put IV
Short · 1d expiry+2.3 vols
Puts pricierCalls pricier
~30d · 35d expiry−0.1 vols
Puts pricierCalls pricier
BTC
Bitcoin · BTC index + listed options
Cheap
Spot$84,604
1w+4.6%
RV 30d38.6
IV 30d35.3
25Δ RR−5.3

BTC gained 4.6% on the week; 30-day realized cooled 42→39. Own-book 30-day implied at 35 screens 3 vols under realized — vol is cheap to own here; 25Δ risk-reversal -5.3 — puts pricier (downside bid).

IV term structure, days → vol
1d2d3d4d7d14d21d35d63d91d
25Δ risk reversal · call IV − put IV
Short · 1d expiry−0.4 vols
Puts pricierCalls pricier
~30d · 35d expiry−5.3 vols
Puts pricierCalls pricier

Tier 2 — Alts & reference-anchored

XRP
XRP · liquid alt
Cheap
Spot$1.55
1w+10.7%
RV 30d102.0
IV 30d72.8
25Δ RR+6.2

XRP gained 10.7% on the week; 30-day realized cooled 141→102. Own-book 30-day implied at 73 screens 29 vols under realized — vol is cheap to own here; 25Δ risk-reversal +6.2 — calls pricier (upside bid).

IV term structure, days → vol
1d2d7d14d35d91d
25Δ risk reversal · call IV − put IV
Short · 1d expiry+6.3 vols
Puts pricierCalls pricier
~30d · 35d expiry+6.2 vols
Puts pricierCalls pricier
SOL
Solana · liquid alt
Cheap
Spot$117
1w+4.2%
RV 30d80.1
IV 30d51.0
25Δ RR+2.4

SOL gained 4.2% on the week; 30-day realized cooled 90→80. Own-book 30-day implied at 51 screens 29 vols under realized — vol is cheap to own here; 25Δ risk-reversal +2.4 — calls pricier (upside bid).

IV term structure, days → vol
1d2d7d14d35d91d
25Δ risk reversal · call IV − put IV
Short · 1d expiry+4.4 vols
Puts pricierCalls pricier
~30d · 35d expiry+2.4 vols
Puts pricierCalls pricier
XAUT
Tether Gold · tokenised XAU
Fair
Spot$4,289
1w−2%
RV 30d21.4
IV 30d20.6
25Δ RR+1.8

XAUT fell 2.0% on the week; 30-day realized held near 21. Own-book 30-day implied at 21 is roughly balanced against realized; 25Δ risk-reversal +1.8 — calls pricier (upside bid).

IV term structure, days → vol
1d2d3d7d14d21d35d
25Δ risk reversal · call IV − put IV
Short · 1d expiry+0.6 vols
Puts pricierCalls pricier
~30d · 35d expiry+1.8 vols
Puts pricierCalls pricier

Tier 3 — Tokenized RWAs & pre-IPO

SPCX
SpaceX · tokenised pre-IPO
Expensive
Spot$149
1w−2.1%
RV 30d42.2
IV 30d131.2
25Δ RR−9.6

SPCX fell 2.1% on the week; 30-day realized cooled 45→42. Own-book 7-day implied at 131 sits +98 over realized — more expensive, leans toward selling premium; 25Δ risk-reversal -9.6 — puts pricier (downside bid).

IV term structure, days → vol
3d4d5d
25Δ risk reversal · call IV − put IV
Short · 3d expiry−33.6 vols
Puts pricierCalls pricier
~30d · 5d expiry−9.6 vols
Puts pricierCalls pricier

Last week, graded

Tagged alt vol the cheapest to own — SOL 30d realized ~90 into Jun 14Realized eased to 80 (spot +4.2%) — vol gave back.
Miss
Flagged XRP realized elevated (~141) with price on the back footRealized eased to 102 (spot +10.7%) — vol gave back.
Miss
ETH realized ~60 led the majors; gamma seen underpricedRealized eased to 56 (spot +3.2%) — vol gave back.
Miss
BTC the calmest major (~42 realized) — looked for vol to stay anchoredRealized held ~ 39 (spot +4.6%) — broadly as flagged.
Hit
Tokenised gold expected to stay subdued (~22 realized)Realized held ~ 21 (spot -2.0%) — broadly as flagged.
Hit

Methodology & sources

ClickHouse index_candles_1d + index_price (RV, cone, spot) through 2026-09-25 close · ClickOptions own book via option_last_books (implied vol, BS model r=4.0%) as-of 2026-09-25 09:15 UTC · RV-only where no IV solves

Vol Value Scores compare ClickOptions' own-book implied volatility to trailing realized volatility on the same underlying — a relative-value read, not a forecast.