The Inphi Acquisition, in HindsightWide moat

Marvell paid roughly $10 billion for Inphi in 2021, a price widely considered aggressive at the time for a company selling signal processors into optical modules. It has aged extremely well. The AI build-out turned interconnect from a supporting technology into a binding constraint, and Inphi's products sit precisely at that constraint.

The deal also explains a decade of Marvell's reported financials. The amortisation of acquired intangibles from Inphi and the earlier Cavium purchase kept GAAP results negative for years even as the underlying business generated cash — which is why this company's non-GAAP and GAAP numbers diverge more than most, and why the earnings chart on these pages needs reading carefully.

The strategic lesson is what Marvell bought rather than built. Its transformation from a storage-chip company into a data-infrastructure company was executed through acquisitions — Cavium, Aquantia, Avera, Inphi, Innovium — and the integration risk that implies is real. Watch whether the acquired franchises keep their technical lead under Marvell's ownership. An acquirer that buys leadership and then loses it has bought a depreciating asset at a growth price. The acquired optics business is now inside a segment that grew 42% at the company level in fiscal 2026¹.