Key Insights:
Rising energy costs and inconsistent transaction fee revenue are further squeezing Bitcoin mining profitability.
Miners collectively hold nearly 1% of Bitcoin’s supply, but most have yet to actively manage those holdings for yield.
Firms are exploring alternatives such as AI infrastructure hosting or treasury strategies to adapt to the changing economics of mining.
Bitcoin mining news this week is dominated by warnings from trading firm Wintermute that the current mining cycle has hit an unprecedented stress point.
In a March 2026 report, Wintermute analysts note that this cycle failed to deliver the 2× price rally seen in prior halvings. That left miners with razor-thin margins even as operational costs climbed.
For example, a recent SEC filing on March 3, 2026, signals that MARA Holdings (Marathon Digital) is now open to selling BTC “from time to time” rather than only HODLing.
Industry data show that public miners have sold over 15,000 BTC since l
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