Google stock could face downward pressure due to a few factors, Dan Niles of AlphaOne Capital Partners said Tuesday.
On CNBC's "Fast Money," Niles noted that Apple had missed three quarters of revenue targets before concerns weighed on its share price.
"You look at Google, they missed five out of six quarters of revenues as well, and people have been sort of willing to ignore that," he said. "But at a certain point, you have to start focusing on some of the core underlying issues that have caused them to miss the top line five out of six quarters."
Niles noted that the search giant's fastest-growing business was in the mobile space.
"But you can only charge about 40 percent for the ads on a smartphone that you can for that on a desktop," he said.
Advertising on tablets, too, was trading at a discount to PC-based platforms.
"That's a negative," he said.
Niles also questioned the company's Google Fiber initiative to bring high-speed internet infrastructure to cities. Already introduced in Kansas City, Mo., the service was reportedly heading next to Austin, Texas.
"This is not a huge profit-maker for these guys," he said.
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Google's Motorola Mobility business also exposed the company to any potential slowdown in the smartphone market, Niles added.
Asked if he owned Google stock, Niles was clear.
"No, no, no-no-no," he said. "I don't plan on owning the stock right now."
Trader disclosure: On April 9, 2013, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Fast Money" were owned by the "Fast Money" traders: Jon Najarian is long PWE; Jon Najarian is long NUAN; Jon Najarian is long TJX; Jon Najarian is long OC; Jon Najarian is long JPM CALLS; Jon Najarian is short GLD; Jon Najarian is short SLV; Jon Najarian is short VXX; Steve Weiss is long QCOM; Steve Weiss is short JCP; Pete Najarian is long AAPL; Pete Najarian is long BAC CALLS; Pete Najarian is long JPM CALLS; Pete Najarian is long BBRY; Pete Najarian is long AMZN CALLS; Mike Murphy is long AAPL; Mike Murphy is long BAC; Mike Murphy is long F;
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