How does the MFI indicator perform during a crypto bull run?

The MFI helps identify buying pressure in crypto markets; during bull runs, readings above 70 may persist, signaling strength, not reversal—divergences offer key warning signs.

Aug 12, 2025 at 03:57 pm

Understanding the MFI Indicator in Cryptocurrency Trading

The Money Flow Index (MFI) is a momentum oscillator that measures the flow of money into and out of an asset over a specified period, typically 14 days. It combines price and volume data to assess buying and selling pressure. The MFI ranges from 0 to 100, with readings above 70 generally indicating overbought conditions and readings below 30 signaling oversold conditions. In the context of cryptocurrency, where volatility is high and price swings are frequent, the MFI can offer valuable insights into market sentiment during different phases of a market cycle.

During a crypto bull run, prices trend upward with strong momentum, often accompanied by increasing trading volume. This environment can cause the MFI to remain elevated for extended periods. Traders must understand that while the MFI is designed to detect overbought or oversold levels, in a strong uptrend, overbought readings (above 70) do not necessarily signal an immediate reversal. Instead, they may reflect sustained buying pressure and investor enthusiasm.

Behavior of MFI During a Sustained Bull Market

In a robust bull run, such as those observed during the 2017 and 2021 Bitcoin rallies, the MFI frequently remains above 70 for days or even weeks. This prolonged overbought condition is not a contradiction but rather a reflection of strong market demand. When the MFI stays elevated without dropping below 70, it suggests that buying volume continues to dominate, and new capital is consistently entering the market.

It is crucial to recognize that volume confirmation plays a significant role in interpreting MFI signals during bullish phases. If price increases are supported by rising volume and the MFI remains above 60, this reinforces the strength of the trend. Conversely, if the price reaches new highs while the MFI begins to decline—a condition known as a bearish divergence—it may indicate weakening momentum, even in a bull market.

Identifying Divergences for Early Warning Signs

One of the most powerful uses of the MFI during a crypto bull run is spotting divergences between price action and the indicator. A bearish divergence occurs when the price of a cryptocurrency makes a higher high, but the MFI forms a lower high. This suggests that despite rising prices, the underlying buying volume is decreasing, potentially signaling exhaustion.

To detect a divergence:

• Plot the MFI on the same chart as the price.
• Identify recent swing highs in both price and MFI.
• Compare whether the latest price high is greater than the previous, while the MFI high is lower.
• Confirm the divergence with a drop in the MFI below a prior swing low or a break of a rising trendline on the MFI itself.

A bullish divergence, though less common in a bull run, can still occur after a short-term pullback. It happens when the price makes a lower low, but the MFI forms a higher low, indicating that selling pressure is diminishing and buyers are stepping in earlier.

Using MFI to Time Pullbacks and Entries

During a bull run, prices rarely move straight up. Temporary pullbacks or consolidations are common. The MFI can help traders identify strategic entry points during these dips. When the price pulls back but the MFI remains above 50, it suggests that the broader uptrend is still intact and the correction is likely temporary.

To use MFI for pullback entries:

• Wait for the price to retrace into support levels (e.g., moving averages or prior resistance turned support).
• Check that the MFI does not drop below 50 during the pullback.
• Look for the MFI to rebound from the 40–50 zone, indicating renewed buying interest.
• Combine this signal with candlestick patterns (like bullish engulfing or hammer) for added confirmation.

If the MFI dips below 30 during a pullback in a strong bull market, it may indicate an oversold bounce opportunity, especially if followed by a rapid reversal in price and volume.

Combining MFI with Other Indicators for Confirmation

Relying solely on the MFI can lead to false signals, especially in fast-moving crypto markets. To improve accuracy, traders often combine the MFI with other technical tools. Pairing MFI with moving averages, Relative Strength Index (RSI), or volume profile can enhance decision-making.

For example:

• Use a 50-day and 200-day moving average to confirm the overall trend direction. If both are sloping upward and price is above them, the bull run context is confirmed.
• Compare MFI and RSI readings. If both show overbought conditions above 70, the signal is stronger. If RSI is overbought but MFI is not, it may suggest a lack of volume support.
• Apply volume analysis to verify MFI signals. A spike in volume during an MFI rebound from 40–50 adds credibility to a potential continuation.

Additionally, on-chain metrics like exchange netflow or whale accumulation can complement MFI readings by providing fundamental volume context behind the price action.

Common Pitfalls and Misinterpretations

A frequent mistake is treating MFI readings in isolation. For instance, seeing the MFI cross above 80 and immediately assuming a reversal is imminent can lead to premature short positions in a bull market. The MFI can remain overbought during strong trends, and exiting long positions based solely on overbought signals may result in missed gains.

Another pitfall is ignoring timeframe alignment. An MFI reading on a 1-hour chart may suggest overbought conditions, while the daily MFI remains in a healthy uptrend. Always assess MFI across multiple timeframes—daily for trend context, 4-hour for momentum, and 1-hour for entry timing.

Also, low-volume altcoins can produce erratic MFI signals due to thin markets and manipulation. The indicator works best with high-liquidity assets like Bitcoin (BTC) or Ethereum (ETH), where volume data is more reliable.

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Frequently Asked Questions

Can the MFI predict the end of a crypto bull run?

The MFI alone cannot predict the exact end of a bull run. However, persistent bearish divergences, repeated failure to reach new highs despite price increases, and a sustained drop in MFI below 60 after prolonged overbought conditions can signal weakening momentum that may precede a reversal.

What is a healthy MFI range during a bull run?

During a strong bull market, a healthy MFI range is typically between 60 and 80. Staying above 60 indicates consistent buying pressure. Brief dips to 50–60 during pullbacks are normal, but a drop below 50 may suggest a deeper correction.

Should I sell when MFI hits 80 in a bull run?

Not necessarily. An MFI above 80 in a bull run often reflects strong momentum rather than an immediate sell signal. Instead of selling, monitor for bearish divergence or a breakdown in volume. Premature selling based on overbought MFI can lead to missed upside.

How does MFI differ from RSI in crypto trading?

While both are oscillators, the MFI incorporates volume, making it more sensitive to changes in buying and selling pressure. RSI uses only price data. In crypto, where volume spikes can precede price moves, MFI often provides earlier warnings of momentum shifts compared to RSI.