Key Takeaways nLIGHT's Q2 revenues grew 22% with defense sales up 74.5%, fueled by HELSI-2 and DE M-SHORAD.IPG Photonics saw Q2 revenues fall 3% and earnings drop 42% amid weak demand and China pressures.YTD, LASR gained 173.3% versus IPGP's 9.9%, with LASR trading at a higher but justified premium.nLIGHT (LASR) and IPG Photonics Corp. (IPGP) are both well-known players in the fiber laser and photonics industry. nLIGHT is a leading supplier in providing high-power lasers for mission-critical defense systems ...