Price Relative Scores

I calculated the difference between last week's price relative score and this week's: Here is a Finviz screen for the 20 biggest gains, and here is one for the 20 biggest declines. One thing I noticed about many of the top gainers is that they were stocks that, a week ago, were stocks that had already had high price relative scores. That agrees with O'Neil's observation that strong stocks tend to get stronger.