On September 2, 2025, the 500-day rule gave its sell signal on Bitcoin at $111,194, and the all-time high of $126,198 was reached 34 days later, on October 6. The price has never returned to that level and now trades around $64,500, representing a 42 to 48 % decline from the exit zone. This rule, formalized by Pantera Capital in August 2023, called for buying Bitcoin approximately 500 days before a halving and selling approximately 500 days after. Applied to the next halving expected around April 2028, it sets a new accumulation window around December 4, 2026, a convergence confirmed by a second independent model pointing to early October 2026.
Source: Read the original article
