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The Bitcoin Misery Index (BMI) is a sentiment indicator developed by Tom Lee, a famous Wall Street strategist.
Tom is the Managing Partner and Head of Research at Fundstrat Global Advisors.
It’s designed to track the relative “misery” of Bitcoin investors (i.e., how satisfied they are with their investment at any given time).
The indicator tracks market sentiment by looking at social media platforms and comparing sentiment analytics from there with technical indicators such as volume and volatility to arrive at a simple score from 0 to 100.
Getting the Vibe of Bitcoin Trading Risks with BMI
Like any financial asset, the Bitcoin price action is subject to pressure from market sentiment (i.e., the feelings and attitudes of traders). If people believe it will go up, there is a higher probability that it will, and vice versa. If they think prices are about to tank, people tend to sell, and that becomes the reality.
Sentiment indicators like the BMI can help traders understand current market attitudes toward Bitcoin and take advantage of the masses’ movements.

The above image shows how the BTC misery index has provided valuable market entry signals from 2010 to 2018.
Of course, those same traders must be aware of the possibility that, at any given moment, the BMI has already been priced in. That means that the market has already been influenced by whatever it’s showing.
How the Bitcoin Misery Index Works
The BMI works by collecting sentiment data from social platforms. Then, it combines them with technical indicators such as volume and volatility and produces a number between 0 and 100 based on the results.
This 0-100 score tells us the “misery” of traders. Lower scores indicate high rates of market dissatisfaction and poor sentiment, while higher scores indicate that the market is developing positive (i.e., bullish) attitudes toward Bitcoin.
Conclusion
The BMI is a helpful indicator for Bitcoin traders looking to gain additional perspective on the market. Because of Bitcoin’s massive market dominance, it can even serve as a relatively safe indicator of broad market sentiment if used wisely in conjunction with other indicators.