Raspberry Pi shares surged 42% on Tuesday after CEO Eben Upton bought stock and traders bet on AI tools like OpenClaw running on its low-cost boards. The stock closed up 36% at 415 pence, lifting the company’s market value to about £1 billion. Investors cited growing interest in “local AI” on cheap devices instead of cloud servers. Raspberry Pi shipped 7.6 million units in 2025, but warned of risks from rising memory costs.