According to @CryptoMichNL, Bitcoin (BTC) dominance has posted its first major breakdown in three years, suggesting conditions for an altcoin rotation may be forming, source: X post by Michaël van de Poppe on Aug 31, 2025. Traders should validate the signal on the BTC.D weekly chart by confirming a lower low and a weekly close below multi-year trend support and the 200-week moving average before reallocating risk toward altcoins, source: TradingView BTC.D and Binance Academy explanations of Bitcoin dominance and moving averages. Additional confirmation can come from strength in ETH/BTC, SOL/BTC, and the TOTAL2 chart relative to BTC, which are commonly used rotation gauges by market participants, source: Binance Academy overview of market dominance and TradingView market cap indices. Use risk management by scaling entries, prioritizing high-liquidity altcoins, and setting volatility-adjusted stops while the dominance trend develops, source: Binance Academy risk management guidelines. Bitcoin dominance measures BTC’s share of total crypto market capitalization, so a sustained decline often aligns with stronger relative performance in altcoins and changing funding dynamics across BTC and alt pairs, source: CoinMarketCap glossary on Bitcoin dominance and Binance Academy market structure materials.

According to @glassnode, no altcoin sector outperformed ETH over the past month (source: @glassnode, Aug 29, 2025). DeFi and Layer 2 were the closest performers to ETH in that period (source: @glassnode, Aug 29, 2025). Most altcoin sectors ended the month in decline, highlighting broad market underperformance outside ETH (source: @glassnode, Aug 29, 2025).

According to @adriannewman21, a bullish crypto market is indicated when ETH rises alongside NFTs, signaling risk-on momentum across both fungible and non-fungible assets. Source: @adriannewman21 on X, Aug 22, 2025. Traders can use this confluence by tracking ETH trend strength and NFT collection floor prices and volumes to confirm market breadth before increasing exposure. Source: @adriannewman21 on X, Aug 22, 2025. This alignment-based signal is positioned as a straightforward market breadth check rather than a standalone timing tool, encouraging confirmation from both ETH and NFT segments. Source: @adriannewman21 on X, Aug 22, 2025.

According to @adriannewman21, an ETH price surge carries broader significance for the crypto ecosystem than rallies in BTC or SOL, indicating that ETH-led moves can explain outsized market-wide reactions (source: Adrian (@adriannewman21) on X, Aug 12, 2025). For trading, this view prioritizes ETH-led momentum as a stronger signal for sector breadth and risk-on conditions compared with BTC or SOL pumps, guiding focus toward ETH-driven market phases (source: Adrian (@adriannewman21) on X, Aug 12, 2025).

According to @milesdeutscher, when ETH whales profit, their increased on-chain risk-taking lifts prices across tokens and attracts more retail participation, creating a positive wealth effect that can benefit portfolios even without ETH exposure, source: @milesdeutscher on X, Aug 11, 2025. For trading, @milesdeutscher indicates that ETH breakouts may precede stronger altcoin beta, higher on-chain activity, and broader market breadth, making ETH strength a signal to monitor for allocation and liquidity shifts, source: @milesdeutscher on X, Aug 11, 2025.

According to Miles Deutscher, BTC and ETH are rallying simultaneously and he characterizes this alignment as perfect for market conditions, signaling a positive view on synchronized momentum in the top crypto assets; source: X post by Miles Deutscher dated Aug 11, 2025.

According to Miles Deutscher, the Altseason Index, which measures the breadth of altcoin performance, has closed below 50 and remains red due to recent poor performance of altcoins. This index needs to stay above 50 for three straight weeks to indicate a strong altseason, but current data shows zero score for market breadth, signaling continued weakness in the altcoin market and suggesting traders should exercise caution and adjust their crypto portfolio allocations accordingly (Source: Miles Deutscher on Twitter, June 9, 2025).

According to Miles Deutscher, the crypto market breadth indicator, which measures the percentage of altcoins on Binance above their 50-day moving average, has dropped to cycle lows, reaching as low as 3%. This indicates a challenging environment for traders to find outperforming altcoins.