BlackRock co-led PsiQuantum's $1 billion Series E at a $7 billion valuation alongside Temasek, with Nvidia's NVentures joining as a strategic backer across three quantum hardware platforms. Quantinuum's $1.68 billion IPO in June 2026 and BlackRock's €50 million bet on IQM confirm that Wall Street capital has moved from skepticism to infrastructure thesis on quantum computing.