Wall Street had its worst day in months on Friday, Oct. 16, and bitcoin barely noticed. CoinDesk reported the S&P 500 fell 1.09% while the Cboe Volatility Index, the VIX, rose 21.5% to 19.99, its biggest one-day jump since June 5. Bitcoin, by contrast, stayed above $80,000 over the weekend, and Volmex's BVIV, which tracks 30-day implied bitcoin volatility, slipped 1% on Friday to just under 40% and has barely moved since. CoinDesk's analysis argues the stock-market fear may fade quickly, citing history, seasonality and calm bitcoin trading. This report covers that analysis; it does not cover Monday's trading, which was under way when we published.

What drove Friday's selloff

CoinDesk says stocks fell on AI and geopolitical worries. AI stocks were hit hard the prior week, and Reuters reported record-high costs of default insurance on AI-related firms, per the article. Oil rose on geopolitical tensions: CoinDesk reports Iran's Revolutionary Guards said on Saturday that two oil tankers caught fire after hitting mines in the Strait of Hormuz, and describes the Russia-Ukraine front as heating up. The article notes geopolitical flare-ups that began in early March have kept investors on edge. Per CoinDesk, Polymarket bettors saw a 9% chance the AI bubble bursts this year as of writing, a crowd estimate, not a forecast.

What history says about big Friday VIX jumps

CoinDesk analyzed VIX history since January 1990 and found 32 prior Fridays on which the index rose 20% or more, excluding the latest one. The following Monday, it fell 25 times and rose seven times, with a typical Monday move of a 4.5% drop. A month later the VIX was lower in 25 of 32 cases, with a median decline of 16%. In the seven cases where it kept climbing on Monday, the article cites August 2015, February 2018 and August 2024.

After 20%+ Friday VIX Jumps: What Came Next
Count of 32 cases since January 1990, per CoinDesk's analysis
VIX fell Monday 25 of 32 VIX rose Monday 7 of 32 VIX lower 1 month later 25 of 32 VIX higher 1 month later 7 of 32
Excludes the latest Friday. The 7-of-32 cases where the VIX kept rising on Monday included August 2015, February 2018 and August 2024. Source: CoinDesk analysis of VIX history; base rates, not forecasts.

CoinDesk adds that the VIX has declined in November in 25 of the last 36 years, with a median drop of 7.2%, and from end-October to year-end in 22 of 36 years, with a median decline of 9.4%. It also notes the index is still under 20 after Friday's spike, having topped 20 on more than a third of days since 1990 and closed above 30 on 8% of days. These are base rates. A 25-of-32 record leaves a real minority of cases where fear kept building, and every case is its own.

What the options market was doing

CNBC reported, per CoinDesk, that traders bought 9,200 Nov. 18, 20-strike VIX calls for $1.7 million and 12,500 Nov. 18, 23-strike calls for $1.1 million, a bet that the VIX closes above 23 by the third week of November. The existence of that bet is part of why we're not treating the history as a guarantee.

Why bitcoin shrugged

CoinDesk's read is that calm bitcoin trading over the weekend and an implied-volatility gauge near 40% suggest crypto traders weren't rushing for protection. The article also links to Binance Square for a claim that bitcoin trading has been more active on weekends this year, especially Sundays, which matters because bitcoin trades when stock markets are shut. The article reports no ETF flow data, and doesn't claim stocks and bitcoin are decoupled, only that bitcoin's weekend trading was calm. For how analysts see the macro setup, see Analysts Split on Bitcoin's $100K Year-End Hope, and for how leverage flushes show up in crypto, What Is a Crypto Liquidation?

Fast answers

How much did the VIX rise on Friday, Oct. 16, 2026?

CoinDesk reported the VIX rose 21.5% to 19.99, its biggest one-day rise since June 5, while the S&P 500 fell 1.09%, citing TradingView.

What usually happens after a big Friday VIX jump?

CoinDesk analyzed 32 Fridays since January 1990 when the VIX rose 20% or more. The following Monday it fell 25 times and rose 7, with a typical drop of 4.5%; a month later it was lower in 25 of 32 cases. These are historical base rates, not forecasts.

How did bitcoin react to the stock selloff?

CoinDesk reported bitcoin stayed above $80,000 over the weekend and Volmex's BVIV bitcoin volatility index slipped 1% Friday to just under 40%, with little movement since.

What drove Wall Street's Friday selloff?

CoinDesk cited AI and geopolitical worries, record-high default-insurance costs on AI-related firms per Reuters, and rising oil on tensions including reported tanker fires in the Strait of Hormuz.

Not financial advice. This article summarizes publicly reported information and named-source commentary as of the date shown. Prices, liquidation totals and other figures change continuously and different data providers report different numbers; check a primary source before acting on anything here. Analyst views are reported as the analysts' own and are not forecasts by PumpReport. Nothing here is a recommendation to buy, sell, hold or trade any asset or to use leverage. Consult a qualified financial advisor before making investment decisions.
Go Deeper

Sources: CoinDesk (Omkar Godbole, Oct. 18, 2026), citing TradingView, CNBC, Reuters, Volmex and Polymarket. Base rates are CoinDesk's analysis.