Canaan Efficiency Record Reaches 17.9 J/TH; 36% of Capacity Idle

Canaan hit a record fleet efficiency of 17.9 joules per terahash in North America in May. At the same time, a third of its installed mining capacity sat idle.

The Nasdaq-listed miner and ASIC manufacturer disclosed the numbers in its June operational update. The 17.9 J/TH figure improved 11% from a year earlier and roughly 4% from the 18.7 J/TH it reported across its North American non-joint venture operations in March and April.

Company data showed installed hashrate at 10.05 EH/s at the end of the month. Effective operating hashrate stood at 6.47 EH/s. Canaan attributed the gap to an expired hosting agreement.

Global fleet efficiency averaged 23.7 J/TH in May, up 13.5% year on year.

Production figures also moved higher. Canaan mined 90 Bitcoin during the month and received another 24 BTC from customers. Its digital asset holdings rose to approximately 1,867 BTC and 3,952 ETH, the largest treasury balance the company has disclosed.

Chairman and chief executive Nangeng Zhang described the May performance as evidence of resilience despite challenging market conditions.

The efficiency gains arrive weeks after weak first-quarter results. Canaan generated $62.7 million in revenue in Q1 2026, down from $196.3 million in the prior quarter. The company posted a net loss of $88.7 million and a gross loss of $22.9 million, which included a $25 million inventory write-down. In the May 19 earnings release, Zhang cited Bitcoin price volatility, compressed hashprice conditions, elevated energy costs, and weather-related disruptions in North America.

A transaction with Cipher Mining added a 49% stake in several West Texas projects, contributing roughly 4.4 EH/s of hashrate capacity and 120 megawatts of power to Canaan’s development pipeline. That capacity is not yet online. The deployment timeline will determine whether Canaan can narrow the operating gap or add to the idle stack.

Canaan’s efficiency record matters because the company both manufactures ASICs and operates its own fleet. The 17.9 J/TH figure serves as a real-world benchmark for its A14 series chips. Rivals that sell ASIC hardware, such as Bitmain and MicroBT, rely on customer data to validate performance claims. Canaan can point to its own fleet results.

The idle-capacity gap highlights a recurring friction in public mining: installed megawatts do not always translate to online hashrate. Hosting contracts expire. Energy markets shift. Weather disrupts operations. For peers with aging S19-era machines or power agreements up for renewal, Canaan’s 36% gap is a familiar risk. The company’s effective hashrate of 6.47 EH/s represents just 64% of its installed base.

Investors continue to weigh operational improvements against financial strain. Canaan received a second Nasdaq non-compliance notice in January after its share price stayed below the exchange’s $1 minimum bid requirement. The company has until July 13, 2026, to regain compliance. Its stock traded around $0.90 in late May.

Market expectations for the current quarter also remain subdued. In its first-quarter earnings report, Canaan guided for second-quarter revenue between $35 million and $45 million, substantially below analyst estimates of about $96 million. The company said it would continue monitoring market conditions and policy developments and could revise its outlook as visibility improves.

Zhang also pointed to broader infrastructure opportunities. “As demand for AI and computing infrastructure continues to grow, we believe Canaan’s strengths in hardware innovation and energy-efficient systems make us well-positioned to unlock new opportunities where energy and computing can create value together,” he said.

Canaan must regain compliance with Nasdaq’s $1 minimum bid by July 13. Its Q2 revenue guidance remains well below the Street estimate.