Investor: Will Greece be a 'Lehman moment' for markets?

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U.S.-based investors have so far remained relatively calm in face of Greek financial and political turmoil. But one hedge fund manager wonders if the distress could be a signal of something akin to the 2008 financial crisis.

"One of the many questions that remain is whether this is a 'Lehman' moment or not," Maria Vassalou, portfolio manager of the Perella Weinberg Partners Global Macro fund, wrote in a recent note. "It might be, but I think nobody can answer this question with great certainty at this point. It will have to be seen."