PALO ALTO — If a company isn't yet profitable, operates in a fledgling industry and tries to go public in somewhat volatile capital markets, one could understand if investors don't exactly chomp at the bit. Such were the dynamics Thursday for Tremor Video Inc., a New York-based in-stream video advertising company advised by Cooley, when it priced at a discount to its expected range of $11 to $13.

But don't expect a shakier quarter-closer to signal a second-half slowdown, say Bay Area attorneys from firms that advised that company and others. Investors might seem a little skittish, spooked by comments from the Federal Reserve and lingering global uncertainty. But a number of companies are prepping to hurtle out of the gates in Q3 and Q4 of 2013.