Pi Cycle Top indicator
The moving-average cross that has flagged past Bitcoin cycle peaks within days, and where it stands today.
Signal today
Compiled by SBZ from daily Bitcoin prices. Updated hourly.
The 111-day average against twice the 350-day average. When the ratio reaches 1 (red zone), it has flagged past cycle peaks within days.
What is the Pi Cycle Top indicator?
It compares two moving averages of Bitcoin’s price: the 111-day average and twice the 350-day average. When the faster average rises to meet the slower one, the market has historically been at or very near a cycle top. The name comes from 350 divided by 111 being close to π.
Track record
The averages crossed in April 2013, December 2013, December 2017 and April 2021, each within days of a major peak. It is not infallible: it did not fire at the second 2021 peak in November, and in the 2024–25 cycle the ratio rose only to about 0.74 of the trigger, so there was no signal at all.
How to read it
We show the ratio of the two averages: 1 means they have crossed (red zone). The closer the ratio gets to 1, the more stretched the market. Far below 1, as today, the indicator simply says the market is not in a blow-off top. It is a warning light for tops, not a buy signal.
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Frequently asked questions
What is the Pi Cycle Top indicator?
A Bitcoin indicator comparing the 111-day moving average with twice the 350-day moving average. Their cross has historically coincided with cycle tops.
Has the Pi Cycle Top indicator been accurate?
It flagged the peaks of April 2013, December 2013, December 2017 and April 2021 within days, but missed the November 2021 peak and gave no signal in the 2024–25 cycle.
Is the Pi Cycle signal active now?
The live status is shown at the top of this page, with how far the short average is from the trigger.
Why is it called Pi Cycle?
Because 350 divided by 111 is about 3.15, close to the number π.
For information only, not investment advice. Figures are updated automatically and can differ slightly between data providers.