Christian Weedbrook, founder and CEO of Toronto-based Xanadu Quantum Technologies, became a billionaire without NVIDIA investing in his company. His 46.4 million multiple-voting shares were worth approximately $1.5 billion following the company's stock surge. The catalyst was NVIDIA's announcement of open-source AI models and a new hardware architecture designed to accelerate quantum computing, which led to XanADu's stock soaring nearly fivefold in six trading sessions. The company, which went public on 27 March via a SPAC merger with Crane Harbor Acquisition Corp, went public with a listing on both the Nasdaq and the TSX. NVIDIA's venture arm, NVentures, has already placed direct bets across the quantum sector, participating in QuEra Computing's $230 million round and PsiQuantum's $1 billion raise at a $7 billion valuation.