Bitcoin's long-term valuation models suggest significant upside potential despite a 40% decline from its October 2025 peak. The "Bitcoin Decay Channel" analysis forecasts a year-end price range of $90,000 to $255,000, with a bullish scenario reaching the upper limit. This model, which uses a logarithmic decay trend across historical cycle highs and lows, indicates that Bitcoin has historically approached the upper boundary during peak cycles. Analyst Sminston highlights that Bitcoin remains in a long-term uptrend, with potential price expansion to $128,000–$308,000 by 2027. The "HODL Waves" indicator suggests a bottom range near $65,900–$70,500, indicating limited downside. Institutional targets vary, with Bernstein projecting $150,000 for 2026, while BitMEX co-founder Arthur Hayes anticipates Bitcoin could exceed $126,000 due to liquidity factors.