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Friday, November 13, 2026

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Marvell buying Lumentum is easier to understand strategically than financially. Four days after $MRVL announced its all-stock acquisition of $LITE, I understand why both sides want it. I remain unconvinced by the shareholder economics at the announced $115bn enterprise value. Smart bulls long $LITE after mid-2026 for its UHP CW story, but we don't. Lumentum's ultra-high-power laser advantage depends on the optical architecture customers choose. Moving the light source closer to the optical engine can reduce losses and change the power required. Today's component bottleneck may become less valuable as the system design changes. External lasers still offer cooling and replacement advantages. Broadcom $AVGO uses them too; its strength is coordinating switch silicon, optical engines and packaging. Huawei's Hi-ONE takes a different route with a built-in light source. Both reinforce the importance of controlling the broader design. That helps explain Marvell's motivation. In AI clusters, weaker networking can leave expensive accelerators idle. A cheaper networking component may never compensate for the lost compute. Buying Lumentum gives Marvell more control over the optical technology it needs to compete. But shareholders have to fund that integration. Marvell holders exchange roughly one-third of the combined company for Lumentum. Lumentum holders receive a fixed number of Marvell shares, leaving them exposed to Marvell's share price and the combined company's execution. We have always being negative on $MRVL vs. $AVGO. Always a tier 2 mgt in both vision and execution. The expected first-half-2028 close is a nightmare for a catch-up strategy. Both companies can keep developing products, but the benefits of combined ownership remain deferred. Broadcom and Huawei have time to advance their designs and deepen customer deployments. By closing, the competitive gap could be wider. I would assign no value to an NVIDIA $NVDA rescue. NVIDIA already has investments and partnerships with both companies. It can access their technology without acquiring the business; a takeover would still depend on price and regulatory clearance. The strategic rationale is understandable. The shareholder case needs customer wins and earnings that justify the ownership exchanged, integration costs and time lost. I remain skeptical.

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