CNBC25: Rebels, Icons and Leaders

Jack Bogle: Why investors shouldn't fear flash trading

Bogle's view of stocks today

Individual investors who are trading are basically speculating, and long-term investors shouldn't fall into that trap, index fund pioneer Jack Bogle told CNBC's "Power Lunch" on Tuesday.

"These things like flash trading, dark pools and so on should mean and do mean nothing to the long-term investor," he said. "They're simply things that traders get trapped by and often outmaneuvered in the marketplace by."

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The founder and former CEO of mutual fund company The Vanguard Group was named No. 9 on CNBC's list of top 25 most influential business leaders over the past 25 years.

Vanguard founder Jack Bogle
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Bogle created the first index mutual fund almost 40 years ago. On the last day of 1975, Vanguard's First Index Investment Trust was launched with assets of $11 million. Vanguard Group now manages $2 trillion in mutual and exchange-traded funds.

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Bogle told CNBC that traders want to "duke it out with other investors and they think they are smarter or stronger." He cautioned investors to stay away from trading and focus on long-term investing.

Long-term investors not only capture the market's returns, but the returns of American businesses over time.

"That's a growth proposition so long as this nation continues to grow, which I suspect, despite challenges, will be a long time," Bogle said.

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Those investors should hang on to their holdings "in thick and thin," despite the fact that he thinks the market may be on the verge of as much as a 25 percent decline.

"I think the best advice for investors is to ride it out and stay the course."

That means about 65-70 percent in stocks and 30-35 percent in bonds, and becoming weighted heavier in bonds later as the investor lives off the income.

—By CNBC's Michelle Fox.