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What does a True Strength Index (TSI) value below zero signify?
A True Strength Index (TSI) value below zero signifies a bearish market condition, indicating that the momentum of the asset is in a downward trend. The TSI is a momentum-based indicator developed by William Blau to capture both the speed and the direction of price changes, smoothing out the noise often associated with other oscillators.

When the TSI value drops below zero, it suggests that the average of the recent gains is less than the average of the recent losses. This negative value reflects increasing selling pressure and can be interpreted as a signal to sell or hold off on buying, as the asset may continue to decline in value. Traders often view a TSI below zero as confirmation of a downtrend.

Moreover, the strength and duration of the negative TSI value can provide insights into the momentum of the bearish trend. A steep decline or prolonged period below zero typically indicates strong and sustained downward momentum, while a shallow or short-lived dip below zero might suggest weaker or temporary bearish conditions.

In practice, traders may combine the TSI with other indicators or analysis techniques to improve the reliability of their trading decisions. For instance, confirming a bearish TSI signal with volume analysis or other trend indicators can help traders avoid false signals and better understand the market dynamics.
A True Strength Index value below zero signals that downside momentum is stronger than upside momentum. It shows the market is in a bearish phase and that sellers are in control. Traders often read this as a sign that the price is struggling to recover and may continue drifting lower unless momentum shifts. A negative TSI can also confirm a downtrend when it aligns with lower highs and lower lows on the chart. Some traders use it to time short entries or avoid long positions until the indicator moves back above zero. It doesn’t guarantee further declines, but it helps highlight weak sentiment and fading buying pressure, making it useful for gauging the overall strength of a trend.

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