Chris McGrath / Getty Images The price of bitcoin and altcoins fell this week, dragging the total crypto market under $4 trillion Key Takeaways Crypto markets are wearing autumnal red after a Sunday sell-off kicked off a slide. Polymarket bettors have placed a 60$100,000 before 2026. A chill in the market has taken bitcoin down a notch. Has the "crypto summer" come to an end? The price of bitcoin, the world's largest and best-known cryptocurrency ...