Bitcoin trades near eighty-seven thousand eight hundred dollars as markets close out 2025 in consolidation mode. We examine why altcoins are showing quiet strength, explore the historic regulatory wins that transformed U.S. crypto policy this year, and look at institutional predictions for 2026. Michael Saylor forecasts Bitcoin reaching one hundred forty-three to one hundred seventy thousand dollars driven by major bank adoption, while Galaxy Digital warns the year ahead is too chaotic to predict. Plus, we dive into the quantum computing threat that stopped being background noise, stablecoin infrastructure challenging ACH payments, and why Asia is building a counterweight to dollar-denominated stablecoins. From browser wallet security flaws to the death of Bitcoin's four-year cycle, we cover what investors need to know heading into the new year.