In day trading, the “open range” refers to the price range (high and low) established during the initial period of trading after the market opens. This time frame can vary depending on the trader’s strategy, but it is often the first 5, 15, 30, or 60 minutes of the trading session. The open range is crucial because it provides a reference point for key support and resistance levels, helping traders identify potential breakout or reversal opportunities.
How Traders Use the Open Range:
- Breakout Trades:
- If the price breaks above the open range high, it may indicate bullish momentum.
- If the price breaks below the open range low, it may signal bearish momentum.
- Traders often enter trades in the direction of the breakout.
- Reversal Trades:
- Some traders look for the price to test the edges of the open range (high or low) and reverse back within the range.
- Trend Confirmation:
- The open range can help confirm the market’s trend direction when paired with other technical indicators like volume, moving averages, or candlestick patterns.
- Stop Loss and Target Placement:
- The open range is often used to set stop-loss orders or determine profit targets based on the range size.
Example:
If the market opens and the price in the first 15 minutes moves between $100 (low) and $105 (high), the open range is $100-$105. A break above $105 could be a signal to go long, while a break below $100 could signal a short trade.
The open range is a key concept for many day traders, as it provides a framework for early-session decision-making.

