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Re:Build, Kalshi Lead Week's Biggest Funding Rounds

November 1, 2026

1 min read

Key Takeaways

Re:Build raised $2.1 billion in funding.
Kalshi raised $1 billion at a $40 billion valuation.
Physical AI and manufacturing absorbed 58% of the week's funding.
Prediction markets took 21% of the week's funding.

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Strategic Implications

This week's funding rounds may indicate a shift in investor interest towards physical AI and manufacturing, which could suggest a growing demand for companies that can provide tangible products and services. The large investments in Re:Build and Kalshi may also indicate a trend towards more diversified funding, with investors looking beyond traditional software and security startups.

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What Happened

Manufacturing And Predictions Marketplaces Draw Large Investments

Re:Build, a manufacturing startup, and Kalshi, a predictions marketplace, led the week’s biggest funding rounds, with Re:Build raising $2.1 billion and Kalshi raising $1 billion at a $40 billion valuation. The week’s funding rounds totaled approximately $4.8 billion, with physical AI and manufacturing companies absorbing 58% of the funding, according to Crunchbase News and Artiverse. The funding rounds were reported by Tech Insider.

Source | Originally Published: October 31, 2026

Companies Mentioned