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Last Updated:  
September 12, 2025
6 min read

BTC Skew Finally Turns Positive

A breakout past $116K, supported by $552.7M worth of buying from Spot Bitcoin ETFs, has also bolstered a recovery in the skew of BTC’s volatility smile for short-tenor options. Having leaned towards OTM puts almost entirely over the past 30 days, traders are now finally showing a slight preference for upside participation. That's limited to 7-day options only however. Risk-on sentiment across asset classes was lifted by yesterday's CPI report and jobless claims numbers. Headline inflation in August inched slightly higher than expected, though not enough to derail rate cut expectations for next week. On the other side of the Fed's dual mandate, unemployment claims rose to their highest since October 2021, a further sign of labour market weakness.

Find our most recent reports in collaboration with Bybit below:

Daily Updates:

  • The bullish price action of the past 24 hours has bolstered a recovery in the skew of BTC’s volatility smile for short-tenor options. Having leaned towards OTM puts almost entirely over the past 30 days (see Charts Of The Day), traders are now finally showing a slight preference for upside participation. However, that bullish sentiment has only reached as far as 7-day maturities, with tenors across the rest of the term structure remaining skewed towards OTM puts.
  • 7-day skew for BTC options currently trades slightly above 1%, having touched 1.7% earlier in the day. Additionally, 7-day ETH options now have a balanced tilt, after being skewed towards puts since late August.

  • Yesterday, August inflation data came in a touch higher than expected, resulting in a slight market selloff across risk-on assets. That selloff quickly rebounded as traders were not derailed enough by the numbers to change their views on a September rate cut next week or their expectations for rate cuts beyond September.
  • However the inflation reading was also released at the same time as a separate jobs market report which showed further signs of cooling in the labour market.

  • Underlying inflation, as measured by the core CPI, which strips out volatile components, rose 0.3% from July and 3.1% on an annual basis — in line with economist expectations. The headline month-over-month figure however exceeded expectations slightly, clocking a 0.4% increase against an expected 0.3%, and double the pace of July. That pushed the annual headline inflation rate up to 2.9%, 0.2 percentage points higher than the July print.
  • Despite the higher headline print, once more there were limited signs of tariff pressures in the report. Core goods prices excluding new and used vehicles rose 0.13%, the least since March this year.
  • The weekly jobless-claims report showed that the number of Americans filing for initial unemployment claims rose by 27,000 to 263,000 in the week ending Sep 6, 2025 — the highest since October 2021.

  • BTC and the S&P 500 initially sold off following the release with BTC falling from $114K. That proved to be a very temporary knee-jerk reaction — something we have noted often is the case with macroeconomic data releases — and since then, it rallied as high as $116K earlier today.
  • ETH reclaimed the $4,500 mark and is up nearly 3% over the past 24 hours, while the rest of the crypto market has seen a far larger outperformance. SOL for example is trading 6.7% higher on the day. Part of that outperformance may be attributed to the announcement that Galaxy Digital acquired more than 2.3M SOL (approx. $530M) in the past 24 hours, according to on-chain data.
  • The move follows Galaxy’s participation in a $1.65B private placement for Forward Industries, alongside Jump Crypto and Multicoin Capital. Forward is transitioning into a Solana-focused digital asset treasury company.
  • Both BTC and ETH were supported by renewed interest in their respective Spot ETF funds. Bitcoin ETFs purchased $552.7M worth of the asset, after recording inflows of $741.5M on Wednesday.
  • Ethereum Spot ETFs are now reversing what was a six-day outflow streak. Yesterday, they purchased $113.1M of Ether — the third straight inflow day.

  • By the end of the trading session, a slew of US equity benchmarks also reached all-time highs, including the S&P 500, Nasdaq-100 and Dow Jones.
  • The market response illustrates the Fed’s dual mandate tug of war. Inflation is still hot, and still well above the 2% target, however, labour market weakness adds to the evidence of a shift towards the “maximum employment” half of the Fed’s mandate.
  • The yield on the US 10-year treasury yield even briefly fell below 4% for the first time since April, when President Trump first announced his Liberation Day tariffs, while the dollar weakened further and is down 10% so far this year.

  • Revenue from tariffs in the US recorded a new monthly high in August according to data from the Treasury Department.
  • Customs duties climbed to $30B last month, a 296% surge compared to August last year, however the monthly budget deficit still registered $345B.

  • Yesterday, BlackRock announced its plans to explore the tokenisation of exchange-traded funds (ETFs).
  • The firm is considering issuing ETFs as blockchain-based tokens, potentially covering equities and other real-world assets, subject to regulatory approval.

  • Crypto exchange Gemini today announced it had raised $425M in its initial public offering. The company sold 15.18M Class A shares at $28 each, above the expected $24–$26 range, and began trading the same day on the Nasdaq Global Select Market under the ticker GEMI.
  • Goldman Sachs, Citigroup, Morgan Stanley, and Cantor led the offering, which also includes a 30-day over-allotment option for underwriters to purchase an additional 750,000 shares. Nasdaq Inc. separately agreed to buy $50M in stock at the IPO price.
  • With the listing, Gemini becomes the third U.S.-listed crypto exchange, joining Coinbase and Bullish.

This Week’s Calendar:

Charts of the Day:

Figure 1. BTC 25-delta put-call skew ratio for the 7-day tenor since Aug 1, 2025. Source: Deribit, Block Scholes
Figure 2. BTC at-the-money implied volatility across selected tenors. Source: Deribit, Block Scholes

Figure 3. ETH at-the-money implied volatility across selected tenors. Source: Deribit, Block Scholes

Figure 4. BTC 25-delta put-call skew ratio across selected tenors. Source: Deribit, Block Scholes

Figure 5. ETH 25-delta put-call skew ratio across selected tenors. Source: Deribit, Block Scholes

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Find our most recent reports in collaboration with Bybit below:

Daily Updates:

  • The bullish price action of the past 24 hours has bolstered a recovery in the skew of BTC’s volatility smile for short-tenor options. Having leaned towards OTM puts almost entirely over the past 30 days (see Charts Of The Day), traders are now finally showing a slight preference for upside participation. However, that bullish sentiment has only reached as far as 7-day maturities, with tenors across the rest of the term structure remaining skewed towards OTM puts.
  • 7-day skew for BTC options currently trades slightly above 1%, having touched 1.7% earlier in the day. Additionally, 7-day ETH options now have a balanced tilt, after being skewed towards puts since late August.

  • Yesterday, August inflation data came in a touch higher than expected, resulting in a slight market selloff across risk-on assets. That selloff quickly rebounded as traders were not derailed enough by the numbers to change their views on a September rate cut next week or their expectations for rate cuts beyond September.
  • However the inflation reading was also released at the same time as a separate jobs market report which showed further signs of cooling in the labour market.

  • Underlying inflation, as measured by the core CPI, which strips out volatile components, rose 0.3% from July and 3.1% on an annual basis — in line with economist expectations. The headline month-over-month figure however exceeded expectations slightly, clocking a 0.4% increase against an expected 0.3%, and double the pace of July. That pushed the annual headline inflation rate up to 2.9%, 0.2 percentage points higher than the July print.
  • Despite the higher headline print, once more there were limited signs of tariff pressures in the report. Core goods prices excluding new and used vehicles rose 0.13%, the least since March this year.
  • The weekly jobless-claims report showed that the number of Americans filing for initial unemployment claims rose by 27,000 to 263,000 in the week ending Sep 6, 2025 — the highest since October 2021.

  • BTC and the S&P 500 initially sold off following the release with BTC falling from $114K. That proved to be a very temporary knee-jerk reaction — something we have noted often is the case with macroeconomic data releases — and since then, it rallied as high as $116K earlier today.
  • ETH reclaimed the $4,500 mark and is up nearly 3% over the past 24 hours, while the rest of the crypto market has seen a far larger outperformance. SOL for example is trading 6.7% higher on the day. Part of that outperformance may be attributed to the announcement that Galaxy Digital acquired more than 2.3M SOL (approx. $530M) in the past 24 hours, according to on-chain data.
  • The move follows Galaxy’s participation in a $1.65B private placement for Forward Industries, alongside Jump Crypto and Multicoin Capital. Forward is transitioning into a Solana-focused digital asset treasury company.

Find our most recent reports in collaboration with Bybit below:

Daily Updates:

  • The bullish price action of the past 24 hours has bolstered a recovery in the skew of BTC’s volatility smile for short-tenor options. Having leaned towards OTM puts almost entirely over the past 30 days (see Charts Of The Day), traders are now finally showing a slight preference for upside participation. However, that bullish sentiment has only reached as far as 7-day maturities, with tenors across the rest of the term structure remaining skewed towards OTM puts.
  • 7-day skew for BTC options currently trades slightly above 1%, having touched 1.7% earlier in the day. Additionally, 7-day ETH options now have a balanced tilt, after being skewed towards puts since late August.

  • Yesterday, August inflation data came in a touch higher than expected, resulting in a slight market selloff across risk-on assets. That selloff quickly rebounded as traders were not derailed enough by the numbers to change their views on a September rate cut next week or their expectations for rate cuts beyond September.
  • However the inflation reading was also released at the same time as a separate jobs market report which showed further signs of cooling in the labour market.

  • Underlying inflation, as measured by the core CPI, which strips out volatile components, rose 0.3% from July and 3.1% on an annual basis — in line with economist expectations. The headline month-over-month figure however exceeded expectations slightly, clocking a 0.4% increase against an expected 0.3%, and double the pace of July. That pushed the annual headline inflation rate up to 2.9%, 0.2 percentage points higher than the July print.
  • Despite the higher headline print, once more there were limited signs of tariff pressures in the report. Core goods prices excluding new and used vehicles rose 0.13%, the least since March this year.
  • The weekly jobless-claims report showed that the number of Americans filing for initial unemployment claims rose by 27,000 to 263,000 in the week ending Sep 6, 2025 — the highest since October 2021.

  • BTC and the S&P 500 initially sold off following the release with BTC falling from $114K. That proved to be a very temporary knee-jerk reaction — something we have noted often is the case with macroeconomic data releases — and since then, it rallied as high as $116K earlier today.
  • ETH reclaimed the $4,500 mark and is up nearly 3% over the past 24 hours, while the rest of the crypto market has seen a far larger outperformance. SOL for example is trading 6.7% higher on the day. Part of that outperformance may be attributed to the announcement that Galaxy Digital acquired more than 2.3M SOL (approx. $530M) in the past 24 hours, according to on-chain data.
  • The move follows Galaxy’s participation in a $1.65B private placement for Forward Industries, alongside Jump Crypto and Multicoin Capital. Forward is transitioning into a Solana-focused digital asset treasury company.