Marvell’s acquisition of Lumentum secures the laser supply its scale-up optics and Celestial’s most advanced silicon-photonics memory-pooling solution require. Nvidia had bought all of Lumentum’s capacity, leaving Marvell unable to provide scale-up optics in its ASIC program. Owning that supply and the IP could give Marvell an advantage over larger accelerator rivals and help it conquer AI accelerators via optics over the long term, despite existing contracts. x.com  x.com  x.com 

A potential Lumentum acquisition could let Marvell pair custom AI chips with the optical infrastructure connecting them. Following Celestial AI, it could become one of the few companies offering both, moving toward an AI-focused version of Broadcom; financing a deal this large remains a major concern. x.com 

Lumentum requires paying up heavily for a company that is not yet making money. Revenue grew 109% year over year, but it trades at about 25 times annualized sales, and it is growing less than memory makers at ten times their valuation. @ZeekTyt cites Lumentum's CEO expecting to supply only about 30% of requested laser demand as CPO and NPO ramp in 2027, with balance around 2029-30. x.com  x.com 

Lumentum's 109% year-on-year growth and sold-out capacity through 2029 make selling its AI optics exposure questionable. Bloomberg reported Marvell is in advanced talks to buy it; the appeal depends on the price, especially when holders of an $80 billion Lumentum would become holders of a $320 billion-plus Marvell growing 37%. x.com 

Lumentum remains an AI laser bottleneck beneficiary: NVIDIA put $2B into the company in March for capacity and access rights to its lasers. A major AI buyer committing capital upfront points to scarce laser supply. x.com 

AI bottleneck semiconductor stocks look to have gotten ahead of themselves, with roughly a hundred near-vertical charts where downside now seems to outweigh upside. They are semis and highly cyclical, and many smaller caps may end up trading like meme stocks. A substantial shakeout would offer a better entry. AI, robotics and energy still have years of growth ahead, but chasing these names now is not advisable. x.com  x.com  x.com  x.com  x.com 

Lumentum supplies optical components inside every AI data center, and that demand remains relentless. x.com 

Lumentum and Coherent may be worth buying because Nvidia has just invested $2 billion in each. x.com 

Lumentum is a great business, but at $954 its risk/reward is not attractive. Applying 30x to fiscal 2028 non-GAAP EPS of $40 gives a 2027 price target of $1,200, about 26% upside, or roughly 15% after adjusting for execution, financial, technology and supply risks. Reaching it needs on-time manufacturing ramps, sustained pricing power and cash flow without excessive dilution. Lost pricing power plus slipping OCS or laser ramps would break the thesis; a significant dip would offer a better entry. … Show more

Lumentum, Coherent and Applied Optoelectronics remain buys amid AI optics demand: Lumentum's CEO said its AI optical parts are completely sold out through early 2029. x.com