William Blair upgraded Kforce to Outperform from Market Perform. The firm views the stock's risk/reward as "too compelling to ignore." Sentiment has been negative for years, but William Blair is see some early signs of improvement based on recent investor interactions, the analyst tells investors in a research note. The firm believes sentiment could improve further as estimates increase. Blair's scenario analysis suggests around 40% upside for both Robert Half and for Kforce in a base-case scenario over the next 12 months, with "much more upside potential" in an accelerating cyclical rebound scenario.