The short version
- Bitcoin Nasdaq correlation is back at 0.65 over 30 trading days, up from 0.12 on September 11, so BTC is trading like a tech stock again.
- Thursday’s AI selloff took the Nasdaq Composite down 2.6% and Bitcoin down 3.5%, while safe-haven money went into bonds, not crypto or gold.
- The crew is watching $80,394 support, plus next week’s Fed meeting and Big Tech earnings, which may now move BTC as much as crypto news.
For one night, Bitcoin looked like it had plans of its own. By Thursday’s close it was trading like a chip stock again, and the Bitcoin Nasdaq correlation had climbed back to 0.65.
The Nasdaq Composite fell 2.6% on Thursday, its worst day since June, and the Nasdaq 100 lost 2.9%. Bitcoin dropped 3.5% between the two closes, sliding from a $84,898 high on Wednesday to a $80,940 low. BTC USD trades at $81,747 at the time of writing, down 1.09% over 24 hours. So why is crypto down every time AI stocks have a bad day?
Seven weeks ago the story was the opposite. Grayscale had just measured Bitcoin drifting away from tech and toward gold:
🚨 UPDATE: Bitcoin’s 90-day correlation with Nasdaq has dropped from 60% to 33%, while its correlation with gold has climbed to roughly 50%, according to Grayscale.
Why Did AI Stocks Drag Crypto Down?
Because Wall Street punished AI spending in both directions on the same day. Meta fell 6.98% after it lifted this year’s spending outlook to $135 billion to $145 billion, as investors asked when all that money pays back. Tesla went the other way and cut its full-year capital spending forecast to about $20 billion from more than $25 billion, and lost 3.08%. Lam Research, which sells the machines that make AI chips, fell 11.76% on its outlook, TradingKey’s market recap shows.
Spend more, and the stock drops. Spend less, and the suppliers drop.
Crypto stocks took the bigger hit. Strategy closed down 5%, Coinbase lost 4.5%, MARA 6.9% and Circle 3.4%. Bitcoin was down 4.2% at $81,100 by the afternoon, with ether and XRP each down more than 5%.
The safe-haven money went somewhere else. Brent crude rose 2.64% to $112.91 after a Houthi attack in Saudi Arabia, and the US 10-year Treasury yield fell about 19 basis points to 4.953%, under 5% for the first time in a month. Investors bought bonds. Gold fell 2.83%, and Bitcoin fell with the stocks.
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How Strong Is the Bitcoin Nasdaq Correlation Right Now?
Strong again: 0.65 over the last 30 trading days, up from 0.12 on September 11. We measured it ourselves, comparing Bitcoin’s daily move at the Nasdaq close with the Nasdaq 100’s.
A correlation of 1 would mean the two move in lockstep, and 0 means no link at all. At 0.65, they don’t copy each other tick for tick, but on most days they point the same way. In early September, when Grayscale flagged the split, Bitcoin was mostly doing its own thing.
The pattern is clearest on the bad days. Over the last six months, the Nasdaq 100 fell 2% or more on six days, and Bitcoin fell on all six. Widen it to every drop of 1.5% or more and Bitcoin fell on 12 of 16. It works on the way up too: on 14 of the 18 days the index gained 1.5% or more, Bitcoin rose with it.
Why? Much of the money in Bitcoin now sits in ETFs and funds that also own Nvidia and Meta. When their risk models say cut, they cut everything, and Bitcoin trades around the clock, so it often gets sold first.
The link also breaks. It slid from 0.71 in April to 0.12 in September before bouncing back, so treat 0.65 as a reading of the current weather, not a law.
Bitcoin Price Analysis: Can BTC Hold $80,000 While Tech Wobbles?
So far, yes. Thursday’s low at $80,940 held above the $80,394 support, and Bitcoin sits right on its 50-day exponential moving average (EMA), a trend line that weights recent prices more, at $80,879. The 200-day EMA is far below at $76,230, so the bigger trend is still up.
The ceiling is Wednesday’s $84,898 high, where the short squeeze ran out of fuel.
- In the bull case, a calm week for tech and a close above $84,898 would put September’s $87,000 area back in view.
- In the base case, Bitcoin keeps chopping between $80,394 and $84,898 and follows the Nasdaq day by day.
- In the bear case, a daily close below $80,394 opens the way to the 200-day EMA near $76,230.
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Next week stacks the Fed meeting on October 27 and 28 on top of earnings from Microsoft, Alphabet and Amazon. With the Bitcoin Nasdaq correlation at 0.65, those Big Tech numbers may move BTC more than anything said at a crypto conference. If Bitcoin holds $80,394 on a red Nasdaq day, that would be the first sign the link is loosening again.
On the climb since 2017. Trades futures and reads onchain data. Automates the boring parts.
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