While there isn't enough trading history to say with confidence, I don't think it's unreasonable to say that GRPN has a pretty high beta to the broader market,

While there isn't enough trading history to say with confidence, I don't think it's unreasonable to say that GRPN has a pretty high beta to the broader market, so I would expect it to rise (or fall) several times the % of (most of) the rest of the market.