Microsoft Stock Falls 4% After Unveiling Majorana 2 Quantum Chip Despite Major Stability Gains
By
Bogdana Zujic
Sesame, salt, and substance. A flagship bake.
Summary
Microsoft unveiled Majorana 2, its second-generation quantum chip, at the Build 2026 developer conference, claiming a 1,000x performance improvement. The chip features 12 qubits (up from 8) and extends qubit stability from under 12 milliseconds to over 20 seconds—a significant technical leap. However, Microsoft's stock dropped 4.17% as investors showed skepticism, likely due to the company's controversial history with quantum computing claims. MSFT shares closed at $441.31.
Key quotes
· 4 pulledMicrosoft's stock dropped 4.17% on Tuesday after the company unveiled Majorana 2, its second-generation quantum chip, at the Build 2026 developer conference.
MSFT shares closed at $441.31 as investors appeared less impressed than the company's own 1,000x performance claims.
It packs 12 qubits, up from 8, and extends qubit stability from under 12 milliseconds to over 20 seconds.
For a technology that has historically collapsed under decoherence within milliseconds, that jump represents genuine technical progress.
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