币界网报道：Aptos, Stacks, and Pi Network displayed divergent market performances amid fluctuating altcoin trends. Aptos (APT) saw a 3.6% decline to $7.21, while Stacks (STX) surged 8.5% to $1.66, buoyed by Bitcoin's Layer-2 adoption. Pi Network's PI token remained stable at $29.93 despite its ongoing transition to open mainnet. Analysts attribute STX's rally to growing institutional interest in Bitcoin DeFi solutions, whereas APT's dip reflects profit-taking after recent ecosystem expansions. Meanwhile, Pi Network continues onboarding users to its mobile mining platform, though delayed KYC verifications have drawn community criticism. The mixed movements highlight sector-specific drivers in the altcoin market, with infrastructure projects like Stacks outperforming general-purpose blockchains this cycle. Market observers note selective capital rotation into Bitcoin-adjacent protocols as the halving approaches.