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Bitcoin Pi Cycle Top Indicator

Live 111-day MA vs 2×350-day MA from Binance daily data — updated every 4 hours. When the 111DMA crosses above the 2×350DMA, BTC has historically peaked within days.

41.2%
Deep Accumulation
of top-signal threshold (100% = crossover)
Deep AccumulationTop Signal
Convergence: 41.2% of crossover threshold
BTC Price
$77,269
111-Day MA
$67,591
2×350-Day MA
$164,112
Gap to Crossover
58.8%

Updated every 4h · Binance 1D klines · Sun, 23 Aug 2026 16:12:36 UTC

MA RatioDeep Accumulation
0.412
Crossover triggers at 1.000
BTC Price
$77,269
Binance daily close
111DMA
$67,591
The fast trend leg
350DMA × 2
$164,112
The top-signal trigger line
Detected Crossovers
1
Within the charted Binance history
History Depth
8.1Y
Daily readings since 2018-08-01
Pi Cycle — last 1Y
No crossover in this window365 daily readings
111-day MA2×350-day MA (dashed)BTC PriceTop Signal crossover

Deep Accumulation — What It Means

The 111DMA is deep below the 2×350DMA. Historically a bear market or major accumulation zone — the Pi Cycle top signal is many months away at current convergence rates.

Pi Cycle readings are informational only. Past crossover accuracy does not guarantee future outcomes. Always apply independent risk management.

Historical Pi Cycle Top Signals

Every confirmed Pi Cycle crossover (111DMA crossing above 2×350DMA) has occurred within days of a major Bitcoin cycle top.

CROSSOVER DATEBTC PRICEOUTCOME
2021-04-12$63,080BTC topped near $64K within days
2017-12-18~$19,200BTC topped near $20K around this date
2013-12-05~$1,180BTC near the 2013 cycle peak

What is the Pi Cycle Top Indicator?

The Pi Cycle Top Indicator was developed by analyst Philip Swift. It tracks two specific moving averages of Bitcoin's daily closing price: the 111-day MA and the 350-day MA × 2. When the shorter 111DMA crosses above the longer 2×350DMA, Bitcoin has historically been within days of a major cycle top.

The name comes from the mathematical constant π (pi ≈ 3.14159). The ratio 350 ÷ 111 ≈ 3.153 — remarkably close to π — a numerical coincidence that resonated with the broader Bitcoin community.

Unlike indicators based on a single threshold (e.g., "above 200DMA"), the Pi Cycle tracks the convergence between two trend lines at different speeds, capturing the characteristic acceleration that tends to occur near late-cycle peaks.

Data sourced from Binance 1D BTCUSDT klines (public API, no key required). Updated every 4 hours. Not financial advice.

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Frequently asked questions

What is the Bitcoin Pi Cycle Top Indicator?
The Pi Cycle Top Indicator tracks two moving averages of Bitcoin's daily price: the 111-day MA and the 350-day MA multiplied by 2. When the 111-day MA crosses above the 2×350-day MA, it has historically marked major Bitcoin market tops.
How accurate is the Pi Cycle Top Indicator?
The Pi Cycle Top Indicator has produced three confirmed signals that coincided with major Bitcoin cycle tops: approximately December 2013 (~$1,180), December 2017 (~$19,200), and April 12, 2021 (BTC at ~$63,080 — within days of the exact top). It is used as a late-cycle warning tool, not a price prediction.
Why is it called the Pi Cycle?
The name comes from the mathematical constant π (pi ≈ 3.14159). The ratio 350/111 ≈ 3.153, which is very close to π. This numerical coincidence was observed by analyst Philip Swift when developing the indicator.
What does a Pi Cycle Top Signal mean?
A Pi Cycle Top Signal occurs when the 111-day MA crosses above the 2×350-day MA. Every prior occurrence has been within days of a major Bitcoin price peak. It does not guarantee a top, but historically has been one of the most reliable late-cycle warning indicators. Always apply independent risk management.
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Bitcoin Pi Cycle Top Indicator computed from Binance 1D BTCUSDT klines. Data updated every 4 hours. Free, no login required. This indicator is for informational purposes only and does not constitute financial advice. Past signal accuracy does not guarantee future outcomes. Always apply your own risk management.
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