Try this idea: take the three-day average daily range and find the absolute difference from the ten-day average range. Project tomorrow's range equal to the three-day average range plus or minus the absolute value from the ten-day average range. Define the trend, assume the open to be within 20% of the daily high or low, then project the high and low for tomorrow as soon as the market opens. Example: Say the three-day average range is 400 points, and the ten-day average range is 320 points. There is an 80 point absolute value difference, which is added and subtracted to the three-day average range. This means the next day should have a minimum range of 320 points to a maximum range of 480 points. This range may be used for profit objectives. If the previous day was confirming of bullish price action and you have bought a lower opening, expect a minimum 320 points from the intraday low to be a profit objective. The three-day average range relationship to the ten-day average range, expresses the strength or weakness of the most recent price movement and its probability of continuation. I have not tried this on intraday charts, but give it a whirl, see if the principles above hold true. In fact, I'd really like to hear from every/anyone who makes the effort.