Yahoo Inc! (Nasdaq: YHOO) Stock Up on Optimistic Earnings - But Uncertainty Lies Ahead

yhoo stockYahoo Inc! (Nasdaq: YHOO) stock got a boost in after-market trading following an earnings report that beat analyst estimates.

Shares were already trading up 2.3% on the day (Tuesday) before the announcement, and advanced another 2.5% to $41.18 by 5 p.m. EDT.

Revenue was up 0.8% to $1.15 billion, beating an expected 3.3% year-over-year drop for the third quarter, and an earnings-per-share of $0.52 beat Wall Street's $0.30 expectation.

But those numbers are hardly as optimistic as they seem...

In fact, income from operations have fallen year over year for the fifth straight quarter, and for nine of the last eleven quarters since Chief Executive Officer Marissa Mayer stepped in to help start a much-needed turnaround.

Income from operations fell to $42.2 million, or 54.5% from 2013's third quarter.

And as expected, the bulk of YHOO's earnings came from its investments overseas, which have for some time been propping up a beleaguered core business.

YHOO holds a 35% stake in Yahoo! Japan, and a 15% stake in the Chinese e-commerce giant Alibaba Group Holding Ltd. (NYSE: BABA), which provided pretty much all of YHOO's income on the quarter.

After the Alibaba IPO last month, as a part of a long-term repurchasing agreement where YHOO has plans to shed its BABA share, YHOO trimmed its stake from above 20% to the now 15% stake.

And that sale explains the massively overinflated 2,183.5% growth in income.

The BABA shares fetched YHOO $9.4 billion in pre-tax proceeds - $6.3 billion after tax.

The optimistic earnings season highlights a new conundrum for YHOO and its shareholders.

Over the next couple of years, YHOO is going to be exiting its investment in BABA, and no longer will it be able to prop up its struggling existing businesses on the backs of its lucrative investments overseas.

Mayer will instead have to put up or shut up on the turnaround that she was first hired for.

And the cash YHOO will generate from later sales will be a big determinant in YHOO's value as a stock moving forward.

"Absent the Alibaba investment, Yahoo as a stand-alone business is just about worthless," said Money Morning Chief Investment Strategist Keith Fitz-Gerald.

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However, he added, "that doesn't mean the company is worthless. The value infused by the Alibaba deal is a huge windfall for Yahoo shareholders and Yahoo management."

YHOO will still be a valuable stock for shareholders if it can be prudent in its aggressive acquisition strategy, find a tax-efficient way to deliver on the Alibaba windfall, and provide an effective roadmap for exiting BABA investment while also benefitting shareholders.

More on Alibaba: Many analysts initiated coverage of Alibaba this week and suggested a "Buy" rating, but even those "bullish" price targets fall short of capturing the Chinese tech giant's true value...