Every stock’s trend is evaluated over 10 different trend periods from 20 to 200 days. For each trend period the stock’s performance, i.e. “trend”, is graded using numerous parameters. The grades are tallied to produce a final score with a trend strength of 1, 2, or 3. Much like a student would be considered a “1” student if the sum of all of his or her grades met the criteria for a “1”. "Trend Strength “4” is designed to recognize a stock that had been trending but is no longer at a new high. However, its closing price is within 3% of the most recent high closing price."