So far, it’s been a great year for stocks. Despite the turbulence of the spring, the S&P 500, a measure of the broader US stock market, has grown by more than 12% since the start of the year.
It’s a runup with some market watchers wondering if investors have overcome their skiing. In a speech in Rhode Island on Tuesday, Federal Reserve Chairman Jerome Powell asked how central bankers demand market prices for decisions.
“We look at our overall financial position and ask ourselves whether our policies are affecting our financial position in the way we are trying to achieve,” Powell said. “But you’re right. For example, many measures make stocks highly valued.”
Powell doesn’t just mean that stocks flirt at record highs. He means the inventory appears to be overvalued. This is a sentiment that has slightly lowered the market.
“Perhaps the oldest doctrine of investment is to “buy at a low price and sell at a higher price,” CFRA chief investment strategist Sam Stoval previously told CNBC Make. While a long-term, diversified approach is usually recommended for everyday investors, experts are also used to the market cycle. They usually want to buy when the stock is cheap and expensive when it sells.
It is impossible to know which “measurements” Powell is looking at. However, in many cases, if experts value stocks, they generally consider the price-to-revenue ratio. A common metric, also known as P/E, indicates that inventory is actually expensive at present. In fact, according to the CFRA, the S&P 500 is currently trading at a 20-year average and a 41% premium.
How P/E ratio works
Wall Street analysts don’t just look at the stock price to determine how attractive the stock price is. Instead, they compare prices to one of the underlying foundations of the company, such as sales, cash flow, or most commonly revenue.
Investors enjoy the profitability of the company over time and are willing to pay more than the company brings to own shares. This amount is expressed by dividing the share price by our earnings per share, and we earn the price and return.
If the shares are sold for $10 and are projected to realize a profit of $2 per share over the next 12 months, then the P/e is 5.
In a vacuum, that doesn’t make much sense. However, it is a great way to compare one investment with another, or to compare assets or indexes with historical averages.
Looking at the S&P 500, stocks in the index are currently trading 23.8 times their forecast revenue for the next 12 months. Over the past 20 years, the average index P/E is 16.8. In other words, stocks are about 41% higher than in the past 20 years.
Applying the same logic, S&P’s P/E high ratio means that US stocks are more expensive than international companies. It can also be said that small business indexes such as the S&P SmallCap 600 with a P/E of 17.1 are traded at a discount to the large company S&P 500.
That’s not to say that S&P will fall tomorrow or that foreign or small stocks will be better than next year. Historically, the market has operated in cycles, with various asset classes being replaced by proverbs leads.
In the long run, market-leading, burgeoning names have lost their sheen, prices have fallen, and unloved “value” stocks have returned to the forefront, Charles Rotoblatt, vice president of the American Association of Individual Investors, previously told CNBC.
He doesn’t recommend doing wholesale to your portfolio based on the short-term terms of the market, but he says it’s worth paying attention to where things in the circular market are and making sure you’re diversified enough.
“In the long run, we see that the pendulum is swinging back and forth because there are periods of growth and periods of value,” says Roblatt. “I don’t think it’s different this time.”
Do you want to be your own boss? Sign up for CNBC’s Smarter and start a new online course, how to start a business: For first-time founders. From testing ideas to increasing revenue, find step-by-step guidance for starting your first business. Sign up today with coupon code EarlyBird to receive a 30% introductory discount from the regular course price of $127 (plus tax). Valid provisions from September 16th to September 30th, 2025.
Additionally, we request that you sign up for CNBC to connect with experts and peers in our newsletter, money, and life to get tips and tricks for success in the workplace.

