Axcelis Technologies (branded on this call as Excellus/Xelis Technologies) (ACLS)

The sleeper story is CS&I hitting records while everyone focuses on systems: $82M quarterly revenue with upgrades and service both at 2025 records, creating a sticky high-margin annuity. The memory recovery is real but cleanroom-constrained, with Russell noting customers are 'begging and borrowing space' until new fabs open in 2027. The binding constraint is fab space, not demand, which should create a powerful snap-back when capacity opens. Most revealing quote: 'We received this new [memory] order prior to completion of existing system evaluation, which we view as an endorsement of our technology.' My view changes if Q1 results miss the lowered $195M guide or if memory customers don't actually start ordering tools by mid-2026.