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Last Updated:  
October 17, 2025
5 min read

Spike In The Vix

A jump in the VIX index to its highest level since April 2025 has seen crypto assets continue to extend their losses, while US equities equally sold off in yesterday's trading session. China-US tensions remain and the share price of two regional US banks plunged yesterday. Shorter-dated BTC and ETH tenors in options markets have blown out, resulting in a firm inversion in ETH’s term structure of volatility and a milder inversion for BTC. 7-day ETH skew is currently trading at -13.1%, even lower than the levels reached last Friday, as its spot price trades down 7% over the past 24 hours.

Find out our latest reports, listed below:

Market Snapshot: Overnight Moves:

Daily Updates:

  • Crypto asset prices continue to extend their losses after a week-long rout that began last Friday. BTC fell from $111K yesterday and now trades below $105K, a 16% drawdown from its all-time high on Oct 6, 2025. 
  • Shorter-dated BTC and ETH tenors in options markets have blown out, with ATM implied volatility on one-week contracts trading at 52% (+9.1% in the past 24 hours) and 83% (+11.5% in the past 24 hours). 
  • That led to a firm inversion in ETH’s term structure of volatility and milder inversion for BTC. 

  • The moves in implied volatility over the past week follow a sharp spike in realised volatility. 7-day realised volatility has jumped nearly 15 percentage points from 35% prior to President Trump’s tariff announcement last Friday to current levels of 49%. 
  • Volatility smile skews reveal that the dramatic spike in implied volatility is the market pricing in for further downside momentum: BTC 7-day put-call skew has exploded to the downside, with OTM puts commanding an 11% vol premium to call options. While not as bearish as the 14% premium priced in last Friday, it’s a major reflection of the demand for downside hedging. 
  • Short-tenor smiles for ETH paint an even more bearish picture — 7-day skew is currently trading at -13.1%, which is even lower than the levels reached on Friday. It also marks a dramatic repricing to downside optionality from only a week ago prior to the tariff escalation when 1-week skew was tilted towards calls at 5%. 
  • ETH spot is currently trading around $3,700 and is down 7% over the past 24 hours and is now more than 24% below its ATH of $4,946 on Aug 24, 2025. 

  • Demand for both Bitcoin and Ethereum spot ETFs have weakened amidst the week-long selloff too. Yesterday, spot Bitcoin ETFs saw their 10th largest outflow on record (-$530.9M), while Ethereum spot ETFs reported $56.8M in net outflows.

 

  • While the initial selloff last week was sparked by a re-escalation of trade tensions between the US and China, which are yet to be resolved, the most recent leg down in crypto prices since yesterday afternoon coincides with a jolt in US equity markets too.
  • Yesterday the S&P 500 ended 0.6% lower and today the VIX index has jumped past 27 — its highest since April 2025. The selloff in equities occurred amidst a plunge in the share price of two regional US banks, Zions Bancorp and Western Alliance. 
  • The banks said that they were victims of fraud on loans they provided to investment funds that invest in distressed commercial mortgages. 
  • Zions Bancorp fell 13% on the day after it disclosed a $50M charge-off for a loan underwritten by its wholly-owned subsidiary, California Bank & Trust (a charge-off is when a creditor decides a loan is uncollectible after a prolonged period of non-payment, officially writing it off as a loss). 
  • Western Alliance Bancorp fell by a similar amount after it declared that it too had made loans to the same borrowers.
  • The renewed volatility in the banking sector comes amidst other recent loan blowups: subprime auto lender Tricolor Holdings filed for bankruptcy last month which led to JPMorgan disclosing a $170M charge-off in Q3. 

  • The renewed bout of volatility has continued to advance the gold fever. Gold rose to nearly $4,400 per ounce earlier today before paring back some gains, and is currently up 9% over the past 5 days. That brings its yearly performance to 65%. Meanwhile, the white metal, silver, has surged 87% in 2025, aided by a historic squeeze in supply in London.

  • 30-day Federal funds futures contracts are currently pricing in a 100% probability of a rate cut in the Fed’s upcoming October meeting — that’s split by a 96.8% probability of a 25bps cut and an implied 3.2% probability for a larger 50bps cut. That marks a significant change in the odds from exactly one month ago, when markets had only priced in a 0.3% chance of an outsized 50bps reduction. 

This Week’s Calendar:

Charts of the Day:

Figure 1. BTC 1M SVI Atm. Source: Deribit, Block Scholes

Figure 2. BTC at-the-money term structure of volatility. Source: Deribit, Block ScholesType image caption here (optional)

Figure 3. ETH at-the-money term structure of volatility. Source: Deribit, Block Scholes

Figure 4. BTC at-the-money implied volatility across selected tenors. Source: Deribit, Block Scholes

Figure 5. ETH at-the-money implied volatility across selected tenors. Source: Deribit, Block Scholes

Figure 6. BTC 25-delta put-call skew ratio across selected tenors. Source: Deribit, Block Scholes

Figure 7. ETH 25-delta put-call skew ratio across selected tenors. Source: Deribit, Block Scholes

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Find out our latest reports, listed below:

Market Snapshot: Overnight Moves:

Daily Updates:

  • Crypto asset prices continue to extend their losses after a week-long rout that began last Friday. BTC fell from $111K yesterday and now trades below $105K, a 16% drawdown from its all-time high on Oct 6, 2025. 
  • Shorter-dated BTC and ETH tenors in options markets have blown out, with ATM implied volatility on one-week contracts trading at 52% (+9.1% in the past 24 hours) and 83% (+11.5% in the past 24 hours). 
  • That led to a firm inversion in ETH’s term structure of volatility and milder inversion for BTC. 

  • The moves in implied volatility over the past week follow a sharp spike in realised volatility. 7-day realised volatility has jumped nearly 15 percentage points from 35% prior to President Trump’s tariff announcement last Friday to current levels of 49%. 
  • Volatility smile skews reveal that the dramatic spike in implied volatility is the market pricing in for further downside momentum: BTC 7-day put-call skew has exploded to the downside, with OTM puts commanding an 11% vol premium to call options. While not as bearish as the 14% premium priced in last Friday, it’s a major reflection of the demand for downside hedging. 
  • Short-tenor smiles for ETH paint an even more bearish picture — 7-day skew is currently trading at -13.1%, which is even lower than the levels reached on Friday. It also marks a dramatic repricing to downside optionality from only a week ago prior to the tariff escalation when 1-week skew was tilted towards calls at 5%. 
  • ETH spot is currently trading around $3,700 and is down 7% over the past 24 hours and is now more than 24% below its ATH of $4,946 on Aug 24, 2025. 

Find out our latest reports, listed below:

Market Snapshot: Overnight Moves:

Daily Updates:

  • Crypto asset prices continue to extend their losses after a week-long rout that began last Friday. BTC fell from $111K yesterday and now trades below $105K, a 16% drawdown from its all-time high on Oct 6, 2025. 
  • Shorter-dated BTC and ETH tenors in options markets have blown out, with ATM implied volatility on one-week contracts trading at 52% (+9.1% in the past 24 hours) and 83% (+11.5% in the past 24 hours). 
  • That led to a firm inversion in ETH’s term structure of volatility and milder inversion for BTC. 

  • The moves in implied volatility over the past week follow a sharp spike in realised volatility. 7-day realised volatility has jumped nearly 15 percentage points from 35% prior to President Trump’s tariff announcement last Friday to current levels of 49%. 
  • Volatility smile skews reveal that the dramatic spike in implied volatility is the market pricing in for further downside momentum: BTC 7-day put-call skew has exploded to the downside, with OTM puts commanding an 11% vol premium to call options. While not as bearish as the 14% premium priced in last Friday, it’s a major reflection of the demand for downside hedging. 
  • Short-tenor smiles for ETH paint an even more bearish picture — 7-day skew is currently trading at -13.1%, which is even lower than the levels reached on Friday. It also marks a dramatic repricing to downside optionality from only a week ago prior to the tariff escalation when 1-week skew was tilted towards calls at 5%. 
  • ETH spot is currently trading around $3,700 and is down 7% over the past 24 hours and is now more than 24% below its ATH of $4,946 on Aug 24, 2025.