BITCOIN AND ALTCOIN PI CYCLE TOP INDICATOR

The Pi Cycle Top Indicator is a Bitcoin price model created by Philip Swift that has predicted Bitcoin's major market cycle tops with exceptional historical accuracy. The indicator uses two moving averages of Bitcoin's price: the 111-day MA and the 350-day MA multiplied by two (350MA × 2). The signal fires when the 111-day MA crosses above the 350MA × 2 — a crossover that has occurred within three days of Bitcoin's actual all-time high in the 2013, 2017, and 2021 bull market cycles.

The mathematical curiosity at the heart of the model is that 350 divided by 111 equals approximately 3.153 — remarkably close to pi (π ≈ 3.14159). While there is no fundamental economic explanation for why this ratio describes Bitcoin's cycle behavior, the empirical track record across three separate market cycles is difficult to dismiss. The doubled 350-day MA creates a long-term ceiling for Bitcoin's price that has proven extremely difficult to sustain above, while the faster 111-day MA measures the rate at which price is approaching that ceiling. When the two converge and cross, it has historically marked the moment of peak euphoria — the point beyond which distribution outweighs accumulation and a major top is imminent.

Traders use the Pi Cycle Top Indicator as a late-stage bull market warning system rather than an entry timing tool. Indicators like MVRV Z-Score, Hash Ribbons, and Realized Price are better suited for identifying accumulation periods. The Pi Cycle Top is specifically designed to signal when a cycle peak may be approaching and when capital preservation should take priority over continued exposure. Given its near-perfect historical track record and its derivation from simple, widely available price data, it remains one of the most closely watched cycle indicators among Bitcoin researchers and long-term investors who prioritize risk management through market cycles.