最新报道:Polkadot's DOT dropped 4% to $3.75 amid a broader crypto market decline, with the CoinDesk 20 index falling 2.7%. Technical analysis shows resistance holding at $3.90 and support breaking at $3.80, triggering a volume spike of 2.21 million. Trading volatility reached 4% within a $0.15 range, with recovery attempts repeatedly failing above $3.75.