Anyone know why Exponent is down, given the solid quarterly results? EPS beat by a penny, and there weren't any obvious warning signs.

Even more oddly, there was an unexplained run-up on the share price in the days before earnings. My hunch is that a short-term trader bid up the prices in anticipation of earnings, then dumped the position afteward (i.e., the price is disconnected from the fundamentals). Any thoughts?