Will Grubhub Inc. Sink or Swim?

Shares of Grubhub (NYSE: GRUB) rallied nearly 40% this year, as the food pick-up and delivery service provider continued its streak of high double-digit sales growth. That momentum probably won't wane anytime soon -- analysts expect Grubhub's revenue and non-GAAP earnings to respectively rise 33% and 24% this year.

Back in February, I weighed several reasons to buy and sell Grubhub, but concluded that its rising expenses, slowing earnings growth, high valuation, and rising competition made it too risky to own. Do those same risks still outweigh the potential rewards? Let's take a closer look at the bull and bear cases for this stock to decide.

Image source: GrubHub.

Source: Fool.com