Bitcoin skyrocketed 750% since Warren Buffett called it 'rat poison' in 2018. Why was he cautious?

The Economic Times · Debaroti Adhikary · 2026-09-29 08:22 UTC

Bitcoin has surged around 750% since Warren Buffett called it “rat poison squared” in 2018, despite his longstanding concerns about cryptocurrencies. The digital asset has since hit record highs above $126,000, driven by growing institutional and investor interest, before correcting sharply. Heres why Buffett remained cautious about Bitcoin.

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