Understanding the Meaning of BOS in Trading: A Comprehensive Guide

In the world of finance and trading, there are numerous terms and acronyms that may seem daunting to newcomers. One such acronym that often confuses traders is BOS. In this comprehensive guide, we will delve into the meaning of BOS in trading and explore its significance in the financial markets. Understanding BOS is crucial for anyone looking to navigate the complexities of trading effectively. So, let's dive in and unravel the meaning of BOS in trading.

What is BOS?

BOS stands for "Buy On Support" in trading. It is a strategy employed by traders to identify potential buying opportunities in the market. The concept behind BOS revolves around the idea that when the price of an asset reaches a certain support level, it is likely to bounce back and continue its upward trajectory. Traders who utilize the BOS strategy look for these support levels as ideal entry points to initiate long positions.

Identifying Support Levels

Identifying support levels is a crucial aspect of implementing the BOS strategy effectively. Support levels are price levels at which the demand for an asset is expected to be strong enough to prevent further decline in its price. When the price approaches a support level, traders anticipate a potential reversal or bounce.

There are several methods traders use to identify support levels:

1. Horizontal Support: This involves identifying previous price levels at which the asset has historically found support. By examining past price action, traders can identify areas where the buying interest has been significant, indicating potential support levels.

2. Trendlines: Trendlines are diagonal lines drawn to connect the higher lows in an uptrend or the lower highs in a downtrend. When the price touches or approaches an upward-sloping trendline, it represents a potential support level.

3. Moving Averages: Moving averages are technical indicators that smooth out price data and help identify the average price over a specified period. Traders observe when the price of an asset approaches or crosses below a moving average, as it may indicate a potential support level.

4. Fibonacci Retracement: Fibonacci levels are based on the mathematical sequence discovered by Leonardo Fibonacci. Traders use Fibonacci retracement levels to identify potential support levels based on key ratios derived from the sequence.

By combining these methods, traders can generate a comprehensive view of potential support levels and apply the BOS strategy effectively.

Executing the BOS Strategy

Once potential support levels have been identified, executing the BOS strategy involves closely monitoring price action and other technical indicators for confirmation signals. Traders typically employ the following techniques when executing the BOS strategy:

1. Candlestick Patterns: Candlestick patterns, such as bullish reversal patterns like hammer, engulfing, or piercing patterns, can provide confirmation of a potential bounce at a support level.

2. Volume Analysis: Analyzing trading volume can provide additional insights into the strength of a potential support level. Higher trading volume accompanying a bounce at a support level validates the strength of the support level.

3. Confirmation Indicators: Traders often use technical indicators like stochastic oscillators, relative strength index (RSI), or moving average convergence divergence (MACD) to confirm potential buying opportunities at support levels.

4. Stop Loss and Take Profit Levels: To manage risk effectively, traders should set appropriate stop loss levels below the identified support level to limit potential losses if the price breaks below support. Take profit levels can be set at areas of resistance or based on the trader's risk-to-reward ratio.

Advantages and Considerations

The BOS strategy offers several advantages for traders seeking to capitalize on potential gains:

1. Profit Potential: By identifying support levels and entering long positions at these levels, traders can potentially benefit from the subsequent price rebounds.

2. Defined Risk: Setting stop loss levels enables traders to limit potential losses if the price breaks below the identified support level.

3. Enhanced Timing: The BOS strategy allows traders to enter positions at advantageous price levels, increasing the likelihood of maximizing profits.

However, there are important considerations to keep in mind when implementing the BOS strategy:

1. False Breakouts: Support levels do not guarantee price reversals. Sometimes, support levels can be breached, leading to false breakouts and potential losses.

2. Market Conditions: The BOS strategy works best in trending markets with clear support and resistance levels. During volatile or range-bound market conditions, the effectiveness of the strategy may diminish.

3. Psychology and Discipline: Traders must remain disciplined and avoid impulsive decisions when applying the BOS strategy. Emotional biases can lead to poor trading outcomes.


Understanding the meaning of BOS in trading is crucial for aspiring traders aiming to navigate the financial markets effectively. By employing the BOS strategy, traders can identify potential buying opportunities at support levels and maximize their profit potential. It is essential to accurately identify support levels and corroborate them with confirmation signals to enhance the effectiveness of the strategy. However, traders must also consider the potential risks and market conditions when implementing the BOS strategy. With a disciplined approach and proper risk management, traders can harness the power of BOS and make informed trading decisions.


  • What is the opposite of BOS? The opposite of BOS is "Sell On Resistance" (SOR). Instead of buying at support levels, traders utilizing the SOR strategy look for selling opportunities at resistance levels.

  • Can the BOS strategy be used in any market? Yes, the BOS strategy can be applied to various financial markets, including stocks, forex, commodities, and cryptocurrencies. However, the effectiveness of the strategy may vary depending on the market conditions and the presence of clear support levels.

  • Are there any specific timeframes suitable for the BOS strategy? The suitability of timeframes depends on the trading style and the trader's preferences. The BOS strategy can be applied on various timeframes, from intraday to long-term. Traders should choose the timeframe that aligns with their trading goals and strategies.

  • Can the BOS strategy be combined with other trading strategies? Yes, the BOS strategy can be combined with other trading strategies and indicators to further enhance trading decisions. Traders often utilize other technical analysis tools, such as trendlines, moving averages, or oscillators, to validate potential support levels identified through the BOS strategy.

22 October 2023
Written by John Roche