5 Little Mistakes Keeping You From Getting Rich in the Stock Market

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"Investing is not nearly as difficult as it looks. Successful investing involves doing a few things right and avoiding serious mistakes." — John Bogle, founder of Vanguard Funds.

You’ve probably heard that investing money in the stock market is the best way to grow your wealth over the long-term. But that’s only true if you avoid mistakes —  and unfortunately, many of your natural tendencies can seriously handicap your ability to get rich on the stock market.

For instance, we’re set up to listen to the news, follow the crowd, and run for safety when danger is afoot — but those tendencies can turn the stock market into a losing proposition. Here are some of the little investment mistakes you need to learn to sidestep if you want to make money from your investments.

1. Trading Too Much

The more you buy and sell your investments, the greater your money. If you invested $10,000 in the S&P 500 in 1995 and stayed invested through 2014, you would’ve earned 9.85 percent annually or $59,593. Yet, if you missed the best ten days during that 19-year period your return would have fallen to 6.1 percent. Nineteen years later, your initial $10,000 would be worth $30,803.

Timing the market is a losing proposition, and even the best rarely win.

2. Ignoring Fees

Before turning over one dollar to a financial advisor or investment fund, understand the fees.

Yes, every fund has an investment management fee, which ranges from 0.03 percent to over 1.0 percent.

The website explains the impact of higher fees on your investments, but here’s an example: Assume that you’re a conservative investor and invest your $100,000 inheritance for 20 years in funds that returns an average of 4 percent annually.

At the end of the 20 years, the investment that charged a 1.0 percent fee would be worth $180,000. The investment that charged 0.25 percent would be worth $210,000. That’s a $30,000 difference between the high and low fee funds!

Don’t make the mistake of paying high fees. You can get wide diversification from S&P 500 Index Fund (SWPPX) for a rock bottom 0.03 percent annual management fee.

3. Not Investing Enough in Your 401(k) to Snare the Employer Match

If your employer matches a percent of your contribution into your 401(k) or 403(b), then you’re throwing away free money if you don’t contribute. Many employers match your own retirement plan contribution dollar-for-dollar up to 5 percent. If you’re earning $70,000 per year, not investing $3,500 in your own retirement account is not only depriving yourself of the chance to build up a robust retirement account but you’re telling your employer, “I don’t need your $3,500, why don’t you keep it!”

4. Putting Investments in the Wrong Accounts

Taxes play into most financial decisions, and it’ll cost you to place your financial assets in the wrong accounts.

Once you’ve maxed out your 401(k) match, it pays to be smart about which investments go where, as different investments get taxed differently.

If you’re looking for investments to put in a taxable account, you should look to stocks, low-turnover stock mutual funds, and municipal bonds that you expect to hold for the long term. That’s because your stock gains are taxed at the capital gains rates, generally lower than the ordinary income tax rates. In most cases, you’re best off placing bonds, taxed as ordinary income, in tax-advantaged retirement accounts.

5. Trying to Beat the Market

Don’t try to beat the market, because chances are that you won’t. Chasing glamorous momentum investment strategies aren’t likely to pay off. In 2015, 66 percent of active money managers returns. If you like those odds, consider that between 2005 and 2015, 82 percent of active fund managers failed to beat the returns of the S&P 500 market index.

Great investors from Warren Buffett to John Bogle champion investing in low-fee, market matching index funds. And the historical stock market data backs up the recommendation to .

To get rich in the market, choose a sensible asset allocation, invest in low fee index funds, and avoid these investment mistakes. You won’t become an overnight millionaire, but over the long term, you’ll be set up for financial success.

is a former portfolio manager and university investments instructor. Learn How to Invest and Beat the Pros in her book.