If you invest in both growth and income, you’ve probably noticed that your growth holdings have massively outperformed their value counterparts over the past several years.

But market history tells us that it won’t last: Sooner or later, growth stocks will lose their steam and value stocks will take over as the market leaders.

No one knows exactly when it will happen—just that it will happen. 

The good news: You don’t have to guess when the market will shift. There’s a simple method to capture the gains from your best performers at (or near) the top… and scoop up bargain stocks before they skyrocket. 

In other words, this strategy takes the guesswork out of “buying low and selling high.”

We’ll explain how it works below… but first, let’s look at why growth stocks are bound to take a breather.

Growth stocks won’t lead the market forever

Value and growth stocks tend to take turns leading the market.

This century, we’ve had several distinct periods where value stocks outperformed. For instance, between the 2000 dot-com bust and the 2007–2008 bear market, value stocks added almost 60%… while growth stocks declined. In fact, after the 2000 crash, it took more than a decade for the growth stock returns to turn positive. 

Trimming your growth position at the top of the 2000 bubble (or shortly thereafter) and reinvesting in value would have meant the difference between a loss and a gain.

Of course, it’s impossible to predict the market’s top (or bottom).

Fortunately, one simple strategy puts timing the market on autopilot…

‘Buy low and sell high’ without the guesswork  

Rebalancing your portfolio is the act of trimming some of your winning positions… and reinvesting the proceeds into some of your underperforming holdings. The goal is to re-weight your portfolio to hold your desired mix of assets.

So, let’s say your ideal equity portfolio holds a 50/50 mix of growth and value stocks. You started five years ago by putting $10,000 into each group—represented by the iShares S&P 500 Growth ETF (IVW) and iShares S&P 500 Value ETF (IVE), respectively. Since then, you have not rebalanced your portfolio.

Based on these ETFs’ gains, your portfolio would now be worth around$37,000—nearly double your original investment. Not too shabby!

But thanks to growth stocks’ outperformance, the allocation is out of whack. Instead of your ideal 50/50, you now have about a 59% weight in growth… and about 41% in value.

That might not seem like a big deal… until the market shifts to a value focus. Then, this imbalance would amplify your losses… and limit your potential gains.

By selling some of your IVW position and investing the proceeds in IVE, you effectively take timing the market out of the equation.

The bottom line: While growth stocks have been leaving their value counterparts in the dust over the past several years, this action won’t last forever. We can’t know for sure when the trend will shift… By periodically rebalancing your portfolio, you can “buy low and sell high” without trying to time the market.