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Sandisk slides on Citron short announcement

Sandisk’s roughly 1,200% run-up over the last year — it was spun off from Western Digital exactly a year ago — took a breather early Tuesday, after well-known stuff-stirrer Citron Research, short seller Andrew Left’s firm, announced it was short the stock.

In a post on X, Citron suggested that while Sandisk has benefited from the parabolic price increase for memory chips, it’s only a matter of time before giant contract chip manufacturers like Samsung Electronics and TSMC turn on the taps:

“The market is pricing SanDisk like its $NVDA. Theres one problem: NVIDIA has a moat. SanDisk sells a commodity. Weve seen this movie before 2008, 2012, 2018. Its never different this time. Memory is a cycle, and cycles peak.”

That’s true historically speaking, but Wall Street seems to see the memory price spike continuing for at least a couple more years. Analysts have ratcheted up their earnings expectations over the next few years, in line with the guidance Sandisk issued in its latest earnings report. And shorting a stock with this much momentum — it’s up more than 150% this year alone! — is treacherous indeed.

“The market is pricing SanDisk like its $NVDA. Theres one problem: NVIDIA has a moat. SanDisk sells a commodity. Weve seen this movie before 2008, 2012, 2018. Its never different this time. Memory is a cycle, and cycles peak.”

That’s true historically speaking, but Wall Street seems to see the memory price spike continuing for at least a couple more years. Analysts have ratcheted up their earnings expectations over the next few years, in line with the guidance Sandisk issued in its latest earnings report. And shorting a stock with this much momentum — it’s up more than 150% this year alone! — is treacherous indeed.

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Cipher Mining pares early losses after Q4 results disappoint

Cipher Mining cut its premarket losses on Tuesday after missing revenue and earnings estimates for the last quarter of 2025. The stock had fallen as much as 4.7% ahead of the open before paring its losses in morning trading.

For Q4, the company reported:

  • Revenue of $60 million (estimate: $84.4 million).

  • Adjusted earnings per share of -$0.14 (estimate: -$0.06).

After the close on Monday, crypto miner Canaan announced that it had purchased Cipher Mining’s stake in a mining joint venture for $39.75 million, deepening Cipher’s pivot away from bitcoin mining toward data centers. Indeed, CIFR acknowledged in the Q4 and year-end report that its “identity has evolved to focus on enabling next-generation compute at industrial scale.”

The Canaan acquisition news came on the heels of former bitcoin miner Bitdeer announcing that it had sold all of its bitcoin holdings to fund its pivot to AI.

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