Lumentum Holdings Inc.

Lumentum makes the optical transceivers that move data between racks in AI data centers — the picks-and-shovels of the compute buildout, now up 510% TTM as the entire optical complex has become structurally short of supply.

• The P&L is actually catching the chart: revenue grew 90% YoY to $808M last quarter, operating margin stepped up to 21.6%, and Morgan Stanley flags optical vendors sold out 18-24 months — a backlog signal that keeps pricing power sticky.
• Valuation is extreme: 139x trailing earnings and 27x sales, but Barclays raised FY28 EPS to $40 — if the ramp holds, the P/E compresses from 139x to roughly 26x on FY28 numbers, which is where the bull case lives.
• COO Wupen Yuen executed 15 separate sales in September totaling millions at $920-$950 — the kind of 10b5-1-like regular-interval distribution that's less a conviction tell than a programmatic trim, but still the clearest sign management thinks the easy money is in the price.

Accelerating holds while hyperscaler orders keep pulling 800G/1.6T production forward and the US anti-Chinese-transceiver bill creates a tailwind for domestic suppliers. A soft Nov 3 guide, or any specific order push-out from a hyperscaler, is what cools the move.