Friday, October 30, 2026

Back to today

From X

@convequity 3 clicks

Convequity on X

We exited $LITE at the start of 3Q26 and stayed out at the 4Q26 rebalance. Lumentum's exposure to AI optics is real, but it depends on design choices that are still open. 1. Lumentum is one of the suppliers of high-power lasers for external laser sources, where the laser sits in its own module and feeds light to the optics. Growth in AI optics lifts this business only as far as customers choose these designs. 2. Co-packaged optics (CPO) puts the optics in the same package as the chip. Some CPO designs keep external lasers, which suits Lumentum. Others move the light source closer to the package, or replace lasers with microLEDs, tiny LEDs used for short links. Wider use of these would cut demand for its lasers. 3. Laser and silicon-photonics technology built for LiDAR (laser-based sensing) is being adapted for data-center links, which could bring new competitors. We have added LiDAR exposure and will cover it in Part 2 or 3 of our 4Q26 rebalance series. 4. Optical circuit switching (OCS) connects fibers by steering light between them. Lumentum's MEMS switches use tiny movable mirrors and suit many ports, low loss and paths that stay in place for long periods. Designs that must change paths quickly and in smaller units are more likely to use silicon-photonics switches. MEMS should win a meaningful share, but probably not all of it. Lumentum keeps credible exposure to external lasers and OCS, but both depend on unsettled design choices. At the 4Q26 rebalance, that uncertainty was enough for us to stay out.

SNY Earnings Review

Sanofi raised FY26 guidance after Q3 sales grew 14.3% at constant currency, led by 34.8% Dupixent growth; vaccines declined 6.6%.

AMZN Q3 FY12/26 Earnings Review

Amazon reported $201.9 billion Q3 revenue and 39% AWS growth, while $220 billion in 2026 capex drove trailing free cash flow to a $42.4…

SAP · long

Sap Se

SAP shares are down 45% since February 2025 as AI disruption fears create a long thesis on its risk-reward.

Another Haircut with Avy the Barber

SoFi’s stock case hinges on interest rates, tangible book value and private-credit loan sales after its $1.5 billion equity offering.

Intel Q3 2026: Dead Inside

Intel’s Q3 2026 datacenter CPU shortage reflects wafer-start planning failures, not substrate constraints, after demand shifted from client…

Publications we follow

Every publication on this site, hand-picked.

129 publications

Newsletters 109

X accounts we follow

Every account on this site, hand-picked.

91 accounts

Investor letters we follow

288 firms

Sectors

Ordered by how often our editor reaches for them.