Why did the crypto market suddenly plunge last night? Based on the evidence reviewed so far, the more plausible explanation is that pressure from energy prices and interest rates dampened risk appetite, weakness in tech stocks and ETF outflows weakened buying support, and subsequent liquidations of long positions amplified the decline. This is an assessment based on several pressures combining; the entire drop cannot be attributed to any single news item.
This article reviews market activity from 8:00 p.m. on October 8, 2026, to 8:00 a.m. on October 9, Beijing time. The information was verified on the morning of October 9.
First, let's look at what actually happened. Binance spot data shows that during this period, BTC hit a low of 80,393.56 USDT, ETH a low of 2,406.11 USDT, and SOL a low of 105.71 USDT. The sell-off was especially concentrated between 11 p.m. and 2 a.m.; by 8 a.m., BTC had rebounded to 81,754.45 USDT. In other words, prices recovered after a sharp intraday drop, so the decline at the lows should not be treated as the final drop for the entire night. [1]
First, rising oil prices have renewed market concerns about inflation and the cost of capital.
According to Reuters, attacks on shipping in the Middle East and hurricane-related impacts on U.S. crude production have added to supply concerns. On October 8, Brent crude futures closed up 4.1%, while WTI gained 3.6%. [2]
These kinds of shocks affect risk assets through inflation expectations: the harder it is for energy costs to come down, the less likely markets are to expect monetary conditions to ease quickly. For crypto markets, investors' reduced willingness to take on risk makes prices more vulnerable to selling pressure. This is the macro transmission mechanism; it does not mean that every sell order was triggered by oil prices.
Second, tech stocks weakened at the same time, putting crypto assets under pressure from declining risk appetite.
That evening, the Nasdaq fell 1.25%, while semiconductor stocks declined about 3.4% overall. Reuters linked the pullback in chip stocks to concerns about revenue expectations for AI companies. [2] When high-valuation tech assets come under pressure, crypto markets are also susceptible to selling as investors reduce their positions.
But one detail needs to be clarified: the 10-year U.S. Treasury yield briefly rose to around 5.35% intraday, then fell back to around 5.23%. So the claim that “yields surged continuously all night, causing crypto prices to fall all the way” does not match the full picture. High interest rates were part of the broader backdrop of pressure, but bond-market pressure had eased somewhat later in the night. [3]
Third, ETF flows indicate that spot demand had already weakened.
Farside data shows that U.S. spot Bitcoin ETFs saw net outflows of about $484.9 million on October 7. Based on the figures reported so far, net outflows on October 8 totaled about $238.6 million, but IBIT had not yet updated when I checked. This figure should not be treated as the final full-day total. [4]
These figures support the view that buying support was under pressure, but they do not justify claiming that institutions dumped large amounts of Bitcoin at a specific minute last night. Daily ETF flows and intraday trading volume are not measured on the same basis.
Fourth, liquidations of long positions accelerated the decline.
A Stocktwits report republished by Yahoo Finance, citing CoinGlass data, said that as of 12 p.m. Eastern Time on October 8—that is, midnight on October 9 Beijing time—about $974 million in crypto positions had been liquidated over the previous 24 hours, including about $896 million in long positions, or roughly 92%. Note that these are rolling 24-hour figures; the liquidations did not all take place during the few hours of last night. [5]
Forced liquidations of long positions add to selling pressure. If prices continue to fall, they may trigger further liquidations. This feedback loop helps explain why the sharp decline accelerated. Liquidations amplified the fall, but a large liquidation total does not mean the market has finished flushing out positions.
My view is that last night's decline reflected a combination of macroeconomic pressure, weakening buying support, and leverage risk. To assess whether a recovery can continue, one place to start is whether BTC can hold near last night's low of around 80,400 and reclaim the trading range of about 82,500–82,800 from before the sharp drop. These are reference levels left by this move, not guaranteed support or resistance.
If the low holds, spot trading supports a rebound, and pressure from oil prices and tech stocks eases, the recovery will have a stronger foundation. If the low breaks and selling volume expands, the risk of further declines remains. The morning rebound only shows that buying emerged; it is not yet enough to confirm a trend reversal.
Sources:
[1] Binance spot BTCUSDT, ETHUSDT, and SOLUSDT one-hour candlesticks, covering 20:00 on October 8 to 08:00 on October 9 Beijing time; the raw responses are saved in the same directory, research-2026-10-09-overnight/.
https://api.binance.com/api/v3/klines
[2] Reuters, report on the U.S. stock and oil market closes on October 8:
https://za.investing.com/news/stock-market-news/wall-st-futures-slide-as-rising-oil-yields-dampen-mood-4495342
[3] AP, review of oil prices, tech stocks, and Treasury yields on October 8:
https://apnews.com/article/6a096d714c874db13632794a32cebaa6
[4] Farside Investors, U.S. spot Bitcoin ETF flows:
https://farside.co.uk/btc/
[5] Stocktwits / Yahoo Finance, report on liquidations during trading on October 8:
https://finance.yahoo.com/markets/crypto/articles/bitcoin-drops-below-81k-triggering-173543893.html