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S&P 500 Still Far From a Bubble

S&P 500 Still Far From a Bubble

After a strong gain in 2017, investors are worried about 2018. One concern is that the good times can’t last forever.

For investors, 2017 provided many good times. For worriers, the low volatility and steady gains of last year signal bad times are likely in 2018.

The worriers have a point. It’s true that good times can’t last forever. It’s also true that we can spot when the good times have gone too far with a simple indicator.

The chart below shows that indicator. It’s a simple 12-month rate of change (ROC).

Bear markets, or a stock market decline of more than 20%, generally follow periods when the ROC is declining. So here's why you shouldn't be worried about a stock market decline yet.

It measures the year-over-year change in price. The solid blue line is the zero level. Right now, the 12-month ROC sits just below 20%, indicating the index is up about 20% in the past year.

ROC tells us how fast the stock market is going. Just like on the highway, there’s a speed limit.

In the stock market, the speed limit is about 40%. When stocks advance more than 40% in a year, a crash often follows. We are nowhere near crash levels.

Bear markets, or a stock market decline of more than 20%, generally follow periods when the ROC is declining. Yellow boxes highlight the last two bear markets. The indicator’s current pattern looks nothing like that.

Sell-offs, or a stock market decline of more than 10%, generally occur after the ROC exceeds 25%. Technically, that level is about one standard deviation above average. When we move that far from average, something unusual is happening.

Right now, we are under that level. That means, mathematically, there’s nothing unusual about the current market action.

That’s disappointing to bears who are looking for a market decline. But that’s good news for the rest of us. Stock prices could move sharply higher from here.

For those who want to worry about the next market decline, the ROC indicator will tell us when to worry. Until then, we should enjoy the gains.

Regards,

Michael Carr, CMT

Editor, Peak Velocity Trader

About The Author

Michael Carr, CMT, CFTe

Michael Carr is an American investor, a Chartered Market Technician (CMT) and a contributing editor for Sovereign Investor Daily. He is a longtime member of the Market Technicians Association (MTA), where he serves as the editor of its newsletter, “Technically Speaking.” He is also a contributor to various publications related to trading, including the Journal of Technical Analysis, MoneyShow, SFO Magazine and Futures Magazine. Michael is the author of two books, Smarter Investing in Any Economy: The Definitive Guide to Relative Strength Investing (2008) and Conquering the Divide: How to Use Economic Indicators to Catch Stock Market Trends (2010).

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