The 10-Year Treasury Is Above 5% for the First Time in Almost 20 Years. History Says This Is How the S&P 500 Index Will Perform Over the Next 12 Months.

On the morning of Thursday, Oct. 15, the 10-year Treasury yield sat at 5.06%. It has been making headlines ever since it crossed 5% about three weeks ago. This is viewed by experts as being the most important number in global finance. That's because it sets the risk-free rate of return that anchors pricing, mortgages, corporate borrowing costs, and valuations across the entire economy.

Besides passing this threshold in late September, the 10-year Treasury yield last closed above 5% on July 19, 2007. Almost 20 years have passed since investors have seen it at this level. When rare events like this occur, it might be time to pay attention to what's going on.

Markets are extremely complex and interconnected, and the current situation might affect your portfolio. Investors naturally want to know what comes next for the stock market, and history says this is how the S&P 500 index could perform in the coming 12 months.

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Drawing parallels to a different era

Over the 12 months following July 19, 2007, the popular stock market benchmark fell 19%. And over the subsequent five years, it was down 11%. This might draw a pessimistic outlook from investors.

In the four years leading up to it closing above 5% on that date in July 2007, the 10-year Treasury saw its yield rise 26%. This was supported by the Federal Reserve aggressively hiking the fed funds rate. The U.S. economy was registering strong growth, and one of the goals was to get ahead of above-average inflation.

That backdrop mimics what we see today. Just in the past 12 months, the 10-year Treasury yield has soared 26%. The central bank has started to raise rates due to stubborn inflation. And as was the case in July 2007, the S&P 500 is currently in all-time record territory and in the middle of a multiyear bull run.

After looking at the parallels, investors might have a gloomy view.

Why this time could be different

However, there are some important differences that shouldn't be ignored. After 2007, stocks performed poorly because of the onset of the Great Financial Crisis. Banks loaded up on risky subprime mortgages, packaging them into complex securities that were sold to third-party investors to raise capital to lend even more. This contributed to the real estate bubble popping, which rippled through the financial system.

What's more, in July 2007, the Treasury yield curve was inverted. The six-month bill was offering investors a higher yield than the 10-year note. This has historically been a dependable recession indicator. Right now, the yield curve is normal and positively sloped.

The banking sector today operates under stricter regulations, thanks in large part to the passing of the Dodd-Frank Act in July 2010. And the stock market is dominated by highly profitable and growing tech giants, led by leading artificial intelligence (AI) enterprises. It's not crazy to think that they could keep expanding in the years ahead, despite their huge size.

In the mid-2000s, businesses in the financial and energy sectors, for example, had much higher weightings in the S&P 500 than they do today. When it comes to leverage, growth, profits, and capital intensity, they aren't as attractive as technology companies.

Assume that time rewards patient investors

The S&P 500 index continues to march higher, but this doesn't prevent the investment community from living with constant fear, uncertainty, and doubt. Pessimism rules the day. Investors should remain optimistic about the long term, though. That's true even if history might suggest that the next 12 months to five years could be worse than anticipated.

It's never a bad idea to be bullish about the long term. That's not hard to do when you focus on owning high-quality companies for several years. Not paying too much attention to macroeconomic data points or using them as predictive tools also makes it incredibly easier.

Study history to sharpen your perspective. But stay the course. And invest early and often.

Neil Patel has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.