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).

According to the source, $90 billion was added to the total crypto market capitalization within 10 hours, source: public X post dated Oct 19, 2025. This equates to an average market cap expansion rate of roughly $9 billion per hour over the reported window based on the same figure, source: public X post dated Oct 19, 2025. Traders can verify confirmation and breadth via aggregated indices such as TradingView’s TOTAL and CoinMarketCap’s Global Crypto Market Cap, which track the same metric, source: TradingView and CoinMarketCap data pages. For risk management, monitor whether the move sustains into daily closes and whether BTC dominance and funding rates shift materially using BTC.D on TradingView and funding pages on major derivatives exchanges, source: TradingView indicators and Binance, Bybit, OKX funding data pages.

According to Crypto Rover (@rovercrc), the total cryptocurrency market capitalization has reached a new all-time high, signaling a market-wide milestone that traders are monitoring for confirmation. Source: Crypto Rover on X, Oct 4, 2025. The post does not provide the exact market cap value, chart, or timeframe context, so independent verification is recommended before making trading decisions. Source: Crypto Rover on X, Oct 4, 2025. To verify the claim in real time, traders can cross-check the global crypto market cap on CoinMarketCap and the TradingView TOTAL index, which publish aggregate market capitalization data. Sources: CoinMarketCap Global Market Cap page; TradingView symbol TOTAL.