Introduction
Martin J. Pring, a well-known technical analyst and author, created the Know Sure Thing (KST) technical indicator during the 1990s. The KST is a momentum indicator that combines various moving averages and momentum indicators to identify trend reversals and gauge trend strength in the market.
To calculate the KST, four different moving averages are applied to a price chart, each calculated using different time periods, and then weighted and added together to produce a single value. The KST can be plotted as a line on a price chart and typically displayed as a histogram that oscillates above and below a zero line.
Traders often use the KST to identify long-term trends and potential trend reversals in the market. When the KST is above its moving average and rising, it signals a strong bullish trend. Conversely, when the KST is below its moving average and falling, it indicates a weak bearish trend.
In conclusion, the Know Sure Thing (KST) is a momentum indicator that helps traders identify trend reversals and gauge the strength of trends in the market. By combining various moving averages and momentum indicators, the KST has become a popular tool among technical analysts for identifying long-term trends and potential trend reversals.
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Computing the Know Sure Thing Indicator
The Know Sure Thing (KST) is a technical indicator that utilizes a combination of Exponential Moving Averages (EMAs) and the Rate of Change (ROC) to identify trend reversals and gauge trend strength in the market. Here is a guide on how to compute the KST:
1. Calculate the ROC over a 10-period timeframe using the formula:
ROC = [(Price - Price n periods ago) / Price n periods ago] x 100
where:
Price = current price;
Price n periods ago = price n periods ago
2. Calculate four different EMAs of the ROC calculated in step 1, each with a different timeframe:
EMA1 = 10-period EMA of 10-period ROC
EMA2 = 10-period EMA of 15-period ROC x 2
EMA3 = 10-period EMA of 20-period ROC x 3
EMA4 = 10-period EMA of 30-period ROC x 4
3. Add up the four EMAs calculated in step 2 to create the KST line, which represents the sum of the four weighted EMAs.
4. Apply a signal line, typically a 9-period EMA of the KST line, to the chart.
5. Plot the KST histogram, which is the difference between the KST line and the signal line. The histogram provides visual signals when it crosses above or below the zero line, as well as when it crosses above or below its own moving average.
Overall, the KST is a complex but useful tool for identifying trend reversals and gauging trend strength in the market.
Interpreting the Know Sure Thing Indicator
When examining the momentum of a market or security, the Know Sure Thing (KST) technical indicator plays a vital role. The KST stands out in technical analysis as it incorporates several moving averages and momentum indicators into one indicator, thus providing a more robust approach to identifying trends and potential trend reversals.
Here are some reasons why the KST is significant in technical analysis:
Identifying long-term trends
The KST is particularly helpful in identifying long-term trends in the market. It does this by smoothing out short-term fluctuations and noise, which enables traders to identify the underlying direction of the trend.
Gauging trend strength
Traders can use the KST to assess the strength of a trend. When the KST is increasing and above its moving average, it signifies that the trend is strong and bullish. On the other hand, when the KST is decreasing and below its moving average, it indicates that the trend is weak and bearish.
Providing early warning signals
The KST histogram is an essential feature that provides early warning signals when it crosses above or below the zero line or its own moving average. These signals can alert traders to potential trend reversals before they occur.
Combining multiple indicators
The KST is a comprehensive tool for analyzing market trends and momentum since it combines multiple Moving Averages and momentum indicators into one. This approach enables traders to make more informed trading decisions.
In summary, the KST is a crucial technical indicator since it offers a comprehensive view of market momentum and trend strength. By combining multiple indicators into a single tool, traders can use the KST to identify long-term trends, gauge trend strength, and provide early warning signals for potential trend reversals.
Martin Pring’s suggestions on how to use the KST Indicator

(an illustration of just two ways KST can be used in the markets)
Martin Pring, the author of “Technical Analysis Explained,” has extensively written about the Know Sure Thing (KST) and its applications in trading. According to Pring, traders can use the KST effectively by following these suggestions and practical recommendations:
Identify major trend reversals
Pring suggests using the KST signal line, a moving average of the KST line, to identify major trend reversals in the market. When the KST line crosses above the signal line, it indicates a bullish trend reversal, while a cross below the signal line indicates a bearish trend reversal.
Confirm price trends
Pring recommends using the KST to confirm price trends in the market. A rising KST line above its signal line confirms a bullish price trend, while a falling KST line below its signal line confirms a bearish price trend.
Identify divergence
The KST can be used to identify divergence between the indicator and price. For example, if price is making higher highs while the KST line is making lower highs, it indicates a bearish divergence, which could signal a potential trend reversal.
Use the KST with other technical indicators
Pring advises traders to use the KST in conjunction with other technical indicators to confirm signals. For example, he recommends using the KST with a momentum oscillator such as the Relative Strength Index (RSI) to confirm trend reversals.
Adjust KST parameters for different timeframes
Pring notes that KST parameters can be adjusted to suit different timeframes. For shorter-term trends, he recommends using a shorter timeframe for the KST and a longer timeframe for longer-term trends.
Avoid over-reliance on the KST
While the KST is a powerful indicator, Pring advises traders to avoid over-reliance on it. It’s always a good idea to use multiple indicators and analyze multiple timeframes to confirm signals.
Manage risk
Pring recommends using the KST as a tool for managing risk in trades by setting stop-loss orders below or above the KST signal line, depending on the direction of the trade. This can help limit potential losses in the event of a trend reversal.
In summary, Martin Pring recommends using the KST to identify major trend reversals and confirm price trends. Additionally, he suggests using the KST with other technical indicators, adjusting its parameters for different timeframes, and avoiding over-reliance on it. Traders can also use the KST to identify divergence and manage risk in their trades.
Advantages & Limitations of the Know Sure Thing Indicator
Here are some potential advantages and limitations of using the Know Sure Thing (KST) in trading:
Advantages
- Identifies major trend reversals: The KST is a powerful tool for identifying major trend reversals, which can provide traders with profitable trading opportunities.
- Confirms price trends: Traders can use the KST to confirm price trends, giving them additional confidence in their trades.
- Works with other indicators: The KST can be used in combination with other technical indicators to confirm signals, potentially increasing the accuracy of trade decisions.
- Customizable for different timeframes: Traders can customize the KST parameters to suit different timeframes, allowing them to use it in different trading strategies and time horizons.
Limitations
- Produces false signals: Like any technical indicator, the KST can produce false signals, leading to potential losses for traders. Therefore, traders should use it in combination with other indicators to confirm signals.
- Lags behind price movements: The KST is a lagging indicator and may not reflect the most current price movements in the market. Therefore, traders should use it in conjunction with leading indicators to get a more accurate picture of market conditions.
- Requires customization and expertise: To use the KST effectively, traders need to customize it for their specific trading strategies and timeframes. Additionally, they need expertise in interpreting the signals it provides.
- May not work in all market conditions: The KST may not work effectively in all market conditions, and may require adjustment or additional analysis in certain circumstances. Traders should be aware of this and use it in combination with other indicators to confirm signals.
In conclusion, the KST is a useful tool for traders to identify trend reversals, confirm price trends, and customize their trading strategies for different timeframes. However, it has limitations and requires expertise to be used effectively.
The KST is a customizable technical indicator that can help traders identify significant trend reversals and confirm price trends. By adjusting its parameters and using it in conjunction with other indicators, traders may be able to increase the accuracy of their trading decisions.
While the KST can be a useful tool for traders, it’s important to keep in mind that it’s not infallible and can produce false signals, which could result in losses. To mitigate this risk, traders should combine the KST with other forms of analysis and tailor it to their individual trading strategies. It’s also important to note that past performance is not a guarantee of future results, so traders should exercise caution when using the KST or any other technical indicator in their trading decisions.
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