Does this spell the end for Commonwealth Bank of Australia shares?

Commonwealth Bank of Australia (ASX: CBA) shares have weakened in each of the last four trading days, and are once again trending lower today with the stock down 31c or 0.4%.

Since setting an all-time high price of $82.685 exactly one week ago today, the stock has steadily fallen backwards and is now trading at just $81.29. That’s a loss of 1.7%, which is in line with the 1.7% fall experienced by the S&P/ASX 200 Index (Index: ^AXJO) (ASX: XJO).

While there has been no specific explanation for the bank’s recent fall, there are plenty of possible reasons. For starters, the stock has jumped an incredible 18.7% over the last 12 months and is currently trading on a projected P/E ratio of 15.2, which is well above its 10-year average.

Alternatively, the appeal of the stock’s fully franked dividend yield might no longer be enough to keep investors buying. It currently yields just 4.6%, which isn’t even as high as those offered by the bank’s primary rivals, being National Australia Bank Ltd (ASX: NAB), Westpac Banking Corp (ASX: WBC) or Australia and New Zealand Banking Group (ASX: ANZ).

Is this the end of Commonwealth Bank’s dream run?

In my opinion, there is a good possibility the fall over the last week will only be temporary and the stock could meet new highs over the coming weeks. However, I also believe that investors buying today are paying far too much for a stock with limited upside potential.

Instead, investors should be buying quality stocks that boast enormous growth opportunities. For instance, this small cap stock has recently been identified by The Motley Fool's top analysts as their #1 ASX pick for 2014! Just click here to discover all the details now, including the name and code, in this FREE investment report, "The Motley Fool's Top Stock for 2014."

Motley Fool contributor Ryan Newman does not own shares in any of the companies mentioned.

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