According to the source, the total crypto market cap is around 3.66 trillion dollars after a pullback, with 4 trillion the next key level to reclaim; traders can confirm any breakout via a weekly close above 4T on the TOTAL market-cap index and expanding breadth such as a rising share of top-100 coins above their 50-day moving average (source: TradingView). Round-number levels often concentrate orders and liquidity, making false breakouts more likely without volume and breadth confirmation (source: Carol Osler, research on order clustering at round numbers, Federal Reserve Bank of New York). For leadership cues, watch BTC dominance (BTC.D) and ETH/BTC; a rising TOTAL alongside declining BTC.D and a firmer ETH/BTC has historically aligned with stronger altcoin performance (source: Coin Metrics research). Sustainability improves when stablecoin net issuance expands and derivatives positioning remains balanced, with funding rates and open interest rising without excessive leverage (source: Glassnode; Kaiko). Spot Bitcoin ETF net flows are a key macro driver for crypto liquidity; persistent net inflows have been associated with upward pressure on BTC and aggregate market cap (source: Bloomberg Intelligence).