NEW YORK, May 8, 2026, 12:03 (EDT)
Eos Energy Enterprises Inc. shares surged almost 22% by late Friday morning, with the zinc-battery company drawing renewed attention just ahead of a quarterly report seen by investors as a gauge of its manufacturing recovery. The stock climbed to $7.75—a gain of $1.39 from Thursday’s close—after earlier reaching $7.87.
This lands just ahead of Eos’s first-quarter results, scheduled for release before the U.S. market opens on May 13. The earnings call is on tap for 8:30 a.m. Eastern Time. Investors can submit questions to management through May 10—Eos has opened a shareholder window ahead of what’s expected to be a closely watched update.
Eos projected first-quarter revenue between $56 million and $57 million last month, pointing to record shipments and stepped-up manufacturing. Shipments climbed 17% from the previous quarter; battery output was up 10.4%. The company also noted that its second battery line finished factory acceptance testing, aiming to start initial production by the end of the second quarter.
The setup remains messy. Subash Chandra at Benchmark isn’t budging from his Hold rating after the preview. He flagged that revenue guidance missed his firm’s $60 million target and landed roughly 30% short of the midpoint in Eos’s $350 million annual outlook—though he noted that lines up with what management has been signaling: sales are expected to pick up later this year.
Much of the renewed buzz traces back to Eos’s April deal with TURBINE-X Energy, setting out to build private power setups for AI data centers. Under the joint development pact, they’re eyeing up to 2 gigawatt-hours of Eos storage over the next 36 months, with first installations lined up for 2027; that’s gigawatt-hours—a unit for stored electricity. TURBINE-X CEO Michael Warneboldt flagged that customers are demanding power “on accelerated timelines.” For Eos, executive Justin Vagnozzi put it bluntly: “Power is now on the critical path.” Eos Energy Enterprises, Inc.
Eos finds itself competing in a busy, rapidly evolving part of the power sector. Fluence Energy, for example, sells storage hardware, services, and software aimed at renewables and storage facilities. Stem, meanwhile, focuses on software and controls for solar and storage operations. Eos is betting on its zinc-based batteries—designed for longer duration—to set it apart from the usual lithium-ion crowd.
Execution is the challenge here. Eos flagged in its annual report that scaling up production and keeping costs down are key to its future. The company also cautioned that if lithium prices fall, conventional lithium-ion batteries might outcompete its zinc-based tech.
The legal cloud isn’t lifting just yet. On May 5, Pomerantz LLP announced a securities class action against Eos and several company insiders, accusing them of securities fraud and other suspect business moves. The lawsuit points to Eos’s Feb. 26 results, operational stumbles and that sharp 39.44% plunge in the stock in a single session. So far, nothing’s been decided in court, according to the firm’s notice.
The next big date circled is May 13. At that point, investors want to see Q1 numbers locked in, more clarity around Line 2, and signs that the AI power pipeline is shifting out of development talk and into actual orders that can be booked.
