Axcelis Sheds the Digestion Fog: Memory + Power Inflection Lifts FY26 Guide
Book-to-bill at 1.0 and a record CS&I quarter let management flip 2026 from 'flat' to 'mid-single-digit growth' — while AI data centers feed both demand streams.
ACLS · Earnings Call · 2026-08-06
The report: a beat, a raise, and a confluence
Axcelis Technologies delivered a beat-and-raise quarter that reads as a genuine inflection. Revenue of $215M and EPS of $1.06 cleared expectations, and — more importantly — management tore up the "flattish" FY26 framework in favor of mid-single-digit year-over-year revenue growth, while signaling growth continues in 2027. The driver is a confluence that has eluded the ion-implanter maker since 2024: DRAM memory spending is inflecting and the Power Market is coming out of digestion at the same time. Russell Low framed the trajectory plainly: it's the memory business — DRAM specifically, with high-bandwidth memory for AI — plus a power market turning. "Our team has executed well, delivering solid results while capitalizing on the attractive secular growth opportunities across our end markets," he said, a statement now backed by hard numbers rather than promise.Memory: the cleanroom-constrained DRAM story matures
Memory was lumpy in H1, but the shape is clear. Low explained why the cadence is uneven:The punchline for '26 vs '27: '26 is a substantial step up off a low base, with momentum extending into '27 as cleanrooms open. David Ryzhik added that H2 memory should look similar to H1, and that growth into '27 will be at a lower rate than '26's off-a-low-base surge — but "we definitely see that momentum in memory." “That momentum extends into 2027 as customers accelerate cleanroom investments to support growing demand for DRAM and high-bandwidth memory applications driven by AI.” — David Ryzhik, Senior Vice President and Interim Chief Financial Officer · 2026-08-06 This is a direct echo of the February call's framing — "we're looking to see that momentum continue into 2027 as the bottleneck, which is cleanroom space, starts to dissipate" (“DRAM significantly up in 2026... and that's across all the DRAM manufacturers” — Russell Low · 2026-02-17) — so the theme is familiar, but the confidence is fresh. Notably, the customer base is broadening: a leading North American memory manufacturer placed additional orders after a successful evaluation, and there was a new multi-system high-current order in the quarter. That expansion matters because memory systems run below corporate-average gross margin; as Ryzhik noted, "when we place those systems, that drives quite a bit of CS&I aftermarket, which is higher margin than corporate average," “so over the life of the tool, long term, it's still a pretty attractive business.” — David Ryzhik, Senior Vice President and Interim Chief Financial Officer · 2026-08-06 The install base becomes the margin engine later.I think we're going to see memory being slightly lumpy this year... until the new cleanroom space comes online, I think the customers are mostly focused on solving bottleneck issues in their existing fabs.
Power: silicon carbide's second act
The bigger surprise is power. Bookings through H1 exceeded the prior two-year average, and Low was emphatic about the driver mix:EVs remain the #1 driver of silicon carbide, but the fresh story is data centers migrating to 800-volt architectures — with silicon carbide as "the material of choice" between the grid and the rack. Low also flagged two new China customers and "advanced superjunction architectures" that demand High Energy channeling implants, which plays straight to Axcelis's differentiated high-energy technology. This builds on the prior-quarter arc, where the team shifted from "gallium nitride or silicon carbide" to "it's both" (“as the rack transitions to 800 volts... you're going to see silicon carbide taking that opportunity” — Russell Low, President and CEO · 2026-05-07) — now the bookings are showing up.So when I think about where we are with power... it was in digestion for a while, but now it's into recovery, and we are expecting the second half to be stronger than the first half for power.