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Why Infinity Pharmaceuticals Shares Soared

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Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of clinical stage biotechnology company Infinity Pharmaceuticals (NASDAQ: INFI  ) soared as much as 17% after Morgan Stanley initiated coverage on the company.

So what: Morgan Stanley initiated Infinity Pharmaceuticals with an "overweight" rating and a price target of $47 on high hopes for one of its leading drug candidates, IPI-145, which is designed to treat multiple hematological malignancies. Morgan Stanley noted that the company's positive early stage results and wide potential reach of IPI-145 could translate to a multi-billion dollar platform.

Now what: Personally, my advice would be for Morgan Stanley to come down from cloud nine. As usual, I'd take any analyst upgrades, downgrades, and initiations with a grain of salt because they have very little long-term effect on a stock's share price. What's really important here is IPI-145. Yes, it showed plenty of promise in phase 1 trials... but let's keep in mind as well that these were merely, phase 1 trials! We really haven't dug into the basics of efficacy or safety yet, and that'll more than likely come later this year when we have some phase 2 results to examine. In the meantime, Infinity's shares have catapulted around 570% over the trailing 12 months on those high hopes. I feel a sizable pullback may be in order and am keeping my CAPScall of underperform squarely in place.

Craving more input? Start by adding Infinity Pharmaceuticals to your free and personalized Watchlist so you can keep up on the latest news with the company.

While you can certainly make huge gains in biotechs like Infinity Pharmaceuticals, the best investing approach is to choose great companies and stick with them for the long term. The Motley Fool's free report, "3 Stocks That Will Help You Retire Rich," names stocks that could help you build long-term wealth and retire well, along with some winning wealth-building strategies that every investor should be aware of. Click here now to keep reading.

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Related Tickers

9/30/2016 4:00 PM
INFI $1.56 Up +0.05 +3.31%
Infinity Pharmaceu… CAPS Rating: ***