<p>NEW YORK (Reuters) - Investors willing to bet on Twitter Inc will have to overlook mounting losses and slowing user growth - and have faith that the eight-year-old Internet messaging company can transform a household name into advertising dollars.</p><p>Fund managers who were optimistic about Twitter's financial prospects shrugged off its latest $65 million quarterly loss as standard for startups chasing growth, pointing instead to revenue growth that more than doubled.</p><p>But others warned of the risks of investing in a company with a management that has yet to prove it can generate a profit.</p><p>"It's worth having exposure to a name like Twitter, although you have to take a conceptual leap of faith with regard to valuation, and say it's a unique franchise that isn't likely to go away," said Karl Mills, president and chief investment officer for private investment adviser firm Jurika, Mills &amp; Keifer in San Francisco.</p><p><a href="http://www.reuters.com/article/2013/10/17/us-twitter-ipo-investors-idUSBRE99G00120131017">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.bloomberg.com/news/2013-10-15/twitter-picks-nyse-as-exchange-bolsters-tech-ipo-allure.html">Twitter Picking NYSE Bolsters Big Board&#039;s Web-IPO Allure</a> (Bloomberg)</p><p><a href="http://in.reuters.com/article/2013/10/16/twitter-ipo-idINDEE99E0EY20131016">Twitter picks NYSE for IPO even as losses widen</a> (Reuters India)</p><p><a href="http://money.cnn.com/2013/10/15/technology/twitter-nyse/">Twitter picks the NYSE</a> (CNN)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=daAwWVfLqD8WD9M-zL-hiPDjqioXM&ned=us">298 additional articles.</a></p>