According to @cas_abbe, Others/BTC has retested a 10-year support trendline, as shared in an X post on Oct 11, 2025 source: https://twitter.com/cas_abbe/status/1976943053635252600. @cas_abbe adds that the last touch of this trendline preceded roughly 1.5 years of altcoin outperformance versus BTC source: https://twitter.com/cas_abbe/status/1976943053635252600. Based on this historical comparison, traders watching rotation may treat the retest as a potential alt/BTC strength signal if the support holds, per @cas_abbe’s observation source: https://twitter.com/cas_abbe/status/1976943053635252600.

According to @52kskew, altcoins currently show clear market share and mindshare dominance versus BTC, keeping most alts strong and bid while BTC chops, source: @52kskew, X, Sep 12, 2025. In the latest 24-hour data, ETH is leading the pack, a key driver for near-term rotation dynamics, source: @52kskew, X, Sep 12, 2025. When Others surpass BTC, it typically signals froth in altcoins, warranting vigilance from traders, source: @52kskew, X, Sep 12, 2025. BTC will be make-or-break for alts in the coming days, so monitoring BTC dominance versus alt performance is critical for risk management, source: @52kskew, X, Sep 12, 2025.

According to @MilkRoadDaily, BTC dominance is sitting on the edge of breaking a 2+ year uptrend, with a weekly close below 60.5% flagged as the confirmation threshold for a breakdown, source: @MilkRoadDaily on X, August 9, 2025. According to @MilkRoadDaily, if that breakdown coincides with ETH holding above $4K on strong volume, it would be the clearest altseason signal seen in years, source: @MilkRoadDaily on X, August 9, 2025. According to @MilkRoadDaily, historically this combination has preceded rotation from BTC into altcoins, source: @MilkRoadDaily on X, August 9, 2025.