What is Price Persistence?

Also called relative strength, price persistence is the tendency of a security's price to stay on trend relative to a market index such as the S&P 500. It is a measure of momentum.

How Does Price Persistence Work?

For example, let's assume the stock of Company XYZ has been steadily increasing over the last six weeks. The stock price was $10 at the beginning of the six weeks; it is now at $18 -- an 80% increase. The S&P 500 during that time increased by 15%. If price persistence holds true, XYZ stock should continue to go up until it hits a resistance line.

[InvestingAnswers Feature: Swing Trading Support and Resistance Secrets]

Why Does Price Persistence Matter?

The basic idea behind price persistence is that if Company XYZ's shares have been increasing (or decreasing) over the last several weeks, the shares will likely continue to increase (or decrease). Although price persistence can give investors an excuse to sit back and 'ride' a stock if it is heading up (or dump a stock if it is heading down), price persistence might also signal that a stock is becoming overpriced (or underpriced, if the persistence is heading in the other direction). One reason for this is that price persistence is based solely on historical performance and thus does not incorporate future performance.

Ask an Expert about Price Persistence

All of our content is verified for accuracy by Paul Tracy and our team of certified financial experts. We pride ourselves on quality, research, and transparency, and we value your feedback. Below you'll find answers to some of the most common reader questions about Price Persistence.

Be the first to ask a question

If you have a question about Price Persistence, then please ask Paul.

Ask a question
Paul Tracy
Paul Tracy

Paul has been a respected figure in the financial markets for more than two decades. Prior to starting InvestingAnswers, Paul founded and managed one of the most influential investment research firms in America, with more than 3 million monthly readers.

Verified Content You Can Trust
verified   Certified Expertsverified   5,000+ Research Pagesverified   5+ Million Users