Bitcoin Market Cycles: Historical & Predicted Timeline Bitcoin's famous 4-year halving cycles have shown a consistent pattern: ~1064-day bull runs followed by ~364-day bears. The classic Reddit meme predicted the 2025 peak on October 6 — and it was remarkably close! As of December 21, 2025, BTC is trading around $88,000–$88,500 (~30% down from the ~$126,000 ATH). The Famous Cycle Prediction Meme The meme that called the October 6, 2025 ATH Visualizing the 4-Year Halving Cycles Classic 4-year cycle overview Halving price dynamics (Bitcoin Magazine Pro) ARK Invest cycle chart entering 2025 Bull vs Bear market phases Phase Start Date End Date Duration (days) Description Bull Market 1 2015-01-14 2017-12-17 1068 Recovery from 2013–2015 bear, driven by 2016 halving and early adoption. Peaked ~$19,666. Bear Market 1 2017-12-17 ...