What the Pi Cycle Top Actually Measures
The indicator plots two moving averages of Bitcoin's daily close: the 111-day SMA and 2× the 350-day SMA. When the short average crosses above the long, doubled average, it signals that price has stretched so far above its long-horizon mean that continuation becomes structurally unlikely.
- 111-day SMA — a medium-horizon trend line responsive to the current cycle's expansion
- 350-day SMA × 2 — a long-horizon gravity line stretched to catch late-cycle blow-offs
- Their ratio approximates π (350 ÷ 111 ≈ 3.153), which is where the name comes from — a numeric coincidence, not a market law
- Historical crossovers: April 2013, December 2013, December 2017, April 2021 — each within days of a major top
