Several market trends can signal an impending bear market in cryptocurrency. A consistent decline in trading volume often indicates waning interest and liquidity, paving the way for price drops. Prolonged negative price momentum, such as breaking below key support levels or moving averages (e.g., 50-day or 200-day), suggests weakening buyer support. Increased selling pressure from whales or large holders, visible through on-chain data, can trigger panic selling. Rising fear in market sentiment, reflected in metrics like the Crypto Fear & Greed Index shifting toward "extreme fear," often precedes downturns.