Why IREN stock is whipsawing today as bitcoin slips and tech rally cools

Why IREN stock is whipsawing today as bitcoin slips and tech rally cools

NEW YORK, December 29, 2025, 12:27 ET — Regular session

  • IREN was down about 0.5% after swinging between $38.55 and $42.25.
  • Bitcoin eased below $88,000, with U.S.-listed crypto-linked stocks broadly lower.
  • Investors are watching thin year-end trading, Fed minutes and weekly jobless claims.

IREN Ltd (IREN.O) shares swung sharply on Monday and were last down 0.5% at $40.08 in midday New York trading. The stock has ranged from $38.55 to $42.25 so far in the session.

The whipsaw highlights how tightly the Nasdaq-listed name trades with risk appetite in the final week of the year, when holiday-thinned volumes can amplify moves.

It also reflects IREN’s dual exposure to two volatile themes: bitcoin mining and the build-out of data centers for artificial intelligence workloads. That combination can make the stock sensitive to both crypto prices and shifts in investor positioning around high-growth tech.

Bitcoin was down about 0.4% at $87,482, after trading between $86,780 and $90,247 earlier on Monday.

Other U.S.-listed bitcoin miners were lower, with Marathon Digital down 1.3%, Riot Platforms off 1.7% and CleanSpark down 0.6%.

The broader market tone was also softer, with Wall Street’s main indexes under pressure as megacap tech shares pulled back from last week’s gains, Reuters reported. “This is not the beginning of the end of the tech dominance — it’ll turn out to be a buying opportunity,” said Hank Smith, director and head of investment strategy at Haverford Trust. Reuters

IREN operates renewable-powered data centers in North America that are used for bitcoin mining as well as AI cloud services, according to a Reuters company profile. Reuters

The company has drawn attention in recent months as miners look to diversify revenue by selling computing capacity for AI, after shifting economics in the crypto-mining business.

In November, Microsoft signed a $9.7 billion, five-year contract with IREN that includes access to Nvidia chips and related equipment, Reuters reported at the time. Reuters

IREN has also tapped capital markets this month. The company said it closed a $2.3 billion convertible notes offering and repurchased existing convertible notes, and it also priced an ordinary share offering tied to that refinancing. Convertible notes are bonds that can be converted into stock under certain conditions, which can increase share count over time. IREN

With no new company announcements on Monday, traders have been left to price IREN largely off crypto moves and the broader tech backdrop.

Later this week, investors will also be watching for the Federal Reserve’s latest meeting minutes and the weekly jobless claims report, while U.S. markets will be shut on Thursday for New Year’s Day, Reuters reported. Reuters

For IREN, the next scheduled company catalyst is likely earnings. Nasdaq estimates the company will report around Feb. 11, though the date is algorithm-based and can change. Nasdaq

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