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Pi Cycle Top Indicator for Bitcoin: The MA Cross — and When It Missed

Of all the technical indicators used to time Bitcoin cycle tops, the Pi Cycle Top has the most striking historical record: it fired within a handful of days of three major Bitcoin cycle peaks (2013, 2017, and April 2021). It also missed two — the November 2021 secondary peak and, most notably, the October 2025 cycle top, where it peaked at just 83% of the cross threshold and never triggered.

That track record draws attention. It also invites misunderstanding. This article covers exactly what the Pi Cycle Top indicator is, the math behind it, why it is named after π, its historical accuracy, the important nuances in the 2021 cycle, and how to use it responsibly as part of a broader confluence framework — rather than as a standalone exit signal.

1. What Is the Pi Cycle Top Indicator?

The Pi Cycle Top is a Bitcoin-specific technical indicator created by analyst Philip Swift. It plots two moving averages on a Bitcoin price chart and generates a signal — a binary "fired" or "not fired" — when one crosses above the other.

The two lines are:

• The 111-day simple moving average (111MA) — a shorter-term average that reacts more quickly to recent price movement.
• 2× the 350-day simple moving average (350MA×2) — a longer-term average, doubled, that rises more slowly and represents the underlying cycle trend amplified.

The signal fires when the 111MA crosses above the 350MA×2 line. At that precise moment — historically — Bitcoin has been at or very near a major cycle top.

Unlike many indicators, Pi Cycle produces no numeric score or gradient reading. There is no "getting closer" or "partially fired." It is on or off. Either the crossover has happened or it has not. This binary nature is both its greatest strength — clarity — and a key reason it must be combined with other signals.

2. The Math Behind the Indicator — and Why It Is Named After π

The name is not marketing. There is genuine mathematics behind it.

The ratio of the two period lengths — 350 divided by 111 — equals approximately 3.153. The mathematical constant π (pi) is approximately 3.14159. The two values differ by less than 0.4%.

Philip Swift noticed this relationship while backtesting different moving average combinations to find which crossover historically aligned most closely with Bitcoin cycle tops. The period lengths that worked best — 111 days and 350 days — happened to produce a ratio almost identical to pi. The name followed naturally.

It is worth being clear about what this means and what it does not mean. The indicator does not rely on some mystical property of π. The explanation most likely lies in Bitcoin's four-year halving cycle: 350 days is close to one year, and 111 days is roughly one-third of a year, a relationship that maps onto the cyclical rhythm of Bitcoin's market structure. The pi coincidence is notable but not causal. What matters is that the specific moving average periods have been predictive of cycle tops in the historical data.

Why These Periods Work (The Practical Explanation)

The 350-day MA moves slowly. It smooths out short-term noise and reflects the long-term price trend — the underlying bull market structure. Doubling it (350MA×2) creates a ceiling line that rises more steeply than the raw average, tracking the upper bound of the cycle's price expansion.

The 111-day MA is faster. It tracks medium-term price momentum. During a bull run, price surges and pulls the 111MA upward rapidly. At cycle tops, momentum becomes so extreme that the 111MA catches and crosses the 350MA×2 line — even though the 350MA×2 is itself elevated by the doubling factor.

The crossover, in other words, marks a point where short-to-medium-term momentum has outrun even the amplified long-term trend. That is historically a sign of overextension.

3. Historical Track Record: 2013, 2017, 2021, and 2025

The Pi Cycle Top has produced three confirmed firings (2013, 2017, and April 2021) and two documented misses (November 2021 and the October 2025 cycle top). Here is what happened at each — including why it failed to fire in 2025 despite Bitcoin hitting a new all-time high at $124,824.

The 2013 and 2017 signals were nearly perfect. Bitcoin formed its cycle top within days of the crossover in both cases, then entered prolonged bear markets. If you were watching the indicator and understood its signal, the timing was remarkable.

The 2021 cycle is more complicated — and more instructive.

The April 2021 vs. November 2021 Nuance

In mid-April 2021, the Pi Cycle Top fired when Bitcoin was trading around $64,000. Bitcoin then sold off sharply — dropping roughly 50% to around $29,000 by late July 2021. By that measure, the signal worked: it identified a major local top.

But Bitcoin did not stay down. The market recovered through the summer and made a new all-time high of approximately $69,000 in November 2021. The Pi Cycle indicator did not re-fire at that second, higher top.

This is the single most important nuance in the indicator's history, and it illustrates both the power and the limitation of the signal:

• The power: It correctly identified a major local top in April 2021. Anyone who reduced exposure significantly when it fired avoided a 50% drawdown.
• The limitation: It did not identify the final cycle peak. The November 2021 top — which turned out to be the true cycle high — occurred without the indicator re-firing, and was only identifiable in hindsight through other signals (MVRV at extreme levels, on-chain data, weakening momentum).

See how Pi Cycle performed at every Bitcoin cycle top — including full indicator context — at the LiftOffr indicator history page.

4. How the Pi Cycle Fits into a Confluence Framework

At LiftOffr, we track eight indicators in confluence. No single one of them — not Pi Cycle, not MVRV, not any other — is treated as a standalone trade trigger. The reason is simple: Bitcoin's market is complex enough that any single signal will eventually produce a false or incomplete read. The 2021 cycle demonstrated this for Pi Cycle specifically.

Confluence means waiting for multiple independent signals to agree before acting with conviction. When they align, the probability of being correct increases substantially. When they diverge, it is a signal to wait and gather more information.

Pi Cycle + MVRV: A Powerful Combination

The MVRV ratio measures Bitcoin's market capitalization relative to what investors actually paid for their coins (the realized cap). When MVRV climbs into extreme territory — historically above 5.0 — it indicates that the market is significantly overvalued relative to investor cost basis. Major tops have historically formed when MVRV was elevated.

Pi Cycle is price-based and technical. MVRV is on-chain and fundamental. When both are elevated simultaneously — Pi Cycle has fired and MVRV is above 4.5 — the confluence of a technical momentum extreme and a fundamental overvaluation extreme creates a much stronger case for caution than either signal alone.

In the April 2021 local top, both signals aligned. In November 2021 (the actual cycle peak), MVRV was at a lower reading than April, which provided additional context that the November top was less extreme from an on-chain perspective — even though it was a higher price.

Pi Cycle + Other Signals

Other indicators that work well alongside Pi Cycle in a confluence framework include:

• CBBI (Crypto Bottom Indicator): A composite of multiple on-chain metrics scored 0–100. When CBBI climbs above 85 and Pi Cycle fires, the combination has historically aligned with major tops.
• Exchange inflows: Large spikes in Bitcoin flowing to exchanges signal that holders are preparing to sell. When this occurs alongside a Pi Cycle signal, it confirms selling pressure.
• Long-term holder behavior: On-chain data tracking whether long-term Bitcoin holders are distributing to newer, shorter-term buyers. Distribution at cycle tops is a consistent pattern.
• Momentum indicators: Price momentum weakening (lower highs in RSI, divergences in other oscillators) at the same time Pi Cycle fires adds technical confirmation.

5. How to Watch the Pi Cycle Top Indicator

The Pi Cycle Top is available on LookIntoBitcoin (lookintobitcoin.com), which provides a real-time chart showing the 111-day MA and the 2× 350-day MA overlaid on the Bitcoin price. It is one of the most widely referenced on-chain charting platforms in the Bitcoin analysis community and updates daily.

The indicator is also available as a community script on TradingView, where you can add it to any Bitcoin chart.

When watching the Pi Cycle, the key things to monitor are:

• The gap between the two lines: As the 111MA approaches the 350MA×2, the gap narrows. A narrowing gap — especially during a bull market — is an early warning that the crossover may be approaching.
• How fast the gap is closing: A rapid narrowing (driven by a sharp price rally accelerating the 111MA) is more urgent than a slow convergence.
• Whether it has fired: Once the crossover occurs, the signal is active. It does not reset until the lines diverge again and conditions reset — which typically requires a significant price decline and subsequent recovery phase.

6. What the Pi Cycle Cannot Tell You

Understanding the limits of any indicator is as important as understanding its strengths. For Pi Cycle specifically:

• It does not give you a price target. The indicator fires based on moving average relationships, not price levels. It says nothing about how high Bitcoin might go before or after the signal.
• It does not tell you which top is the final one. As 2021 showed, there can be a local top followed by a new all-time high. Pi Cycle fired at the local top, not the final one.
• It provides no numeric score. Unlike MVRV or CBBI, there is no gradient. You cannot say "Pi Cycle is at 70% of the way to firing." Either it has fired or it has not.
• It has a limited sample size. Three confirmed signals across three cycles is a small dataset. The indicator has been accurate across those three instances, but three data points cannot provide statistical certainty about future behavior.
• It says nothing about bottoms. Pi Cycle is purely a top signal. It has no analog for identifying cycle lows.

7. Using the Pi Cycle Responsibly: An Educational Framework

Given both the indicator's track record and its limitations, a responsible approach treats it as an important input rather than a final answer. When the Pi Cycle fires, the appropriate response is heightened awareness and a review of the full confluence picture — not an automatic exit.

A practical framework for using Pi Cycle as one of multiple signals:

This is the approach at LiftOffr. We synthesize Pi Cycle with seven other indicators every day in a single confluence brief. The goal is not to react to any single signal — it is to understand the weight of evidence across all signals and act when that weight becomes overwhelming in one direction.

This approach is fundamentally educational and analytical. Nothing in this article — or in the Pi Cycle indicator itself — constitutes financial advice. Every investor's situation is different, and cycle indicators are tools for understanding market conditions, not guarantees of future outcomes.

Pi Cycle and the LiftOffr Approach

At LiftOffr, Pi Cycle is one of eight indicators we track in confluence. It sits alongside MVRV, CBBI, long-term holder behavior, exchange flow data, and several other signals. Every morning, members receive a plain-English daily brief synthesizing where all eight indicators stand — not as a trade signal, but as an educational read on where the cycle appears to be.

When Pi Cycle fires in a future cycle, members will know about it immediately. More importantly, they will see how it lines up with the other seven signals — whether the confluence is building toward a top or whether other indicators are telling a different story. That context is what separates informed decision-making from reacting to a single data point.

For a full backtest of how the eight-indicator framework — including Pi Cycle — performed across every Bitcoin cycle from 2017 to today, see the LiftOffr track record dashboard ($50/week DCA + cycle signals → $1.88M).