Ahead of the Bell: CME Group dips after missing 1Q estimates

The stock fell $17.50, or 3.3 percent, ahead of the opening bell. The stock, which finished Monday's trading at $523.50, has ranged from $399.01 to $714.48 over the past year.

Excluding a tax benefit, the company earned $4.67 per share in the quarter, below the $4.80 per share analysts polled by Thomson Financial expected.

Banc of America Securities analyst Christopher J. Allen said the stock may slide during regular trading, especially after a 4 percent run-up Monday.

Interest income of $9.2 million missed Allen's $14.8 million forecast, due in part to lower interest rates from the U.S. Federal Reserve, he said.

"We continue to like the stock from a long-term perspective, but believe the near term could be slightly challenging until volumes accelerate from current levels," Allen said in a note to clients.

Citi Investment Research analyst Donald Fandetti said Wall Street is likely to view the results as a "slight miss," and kept a "Hold" rating and $510 price target.

Last month CME said it would buy Nymex Holdings Inc., which operates the New York Mercantile Exchange, for about $9 billion.