Robert Half is trading at $43.12, down 4.08%, alongside broad market weakness. - The S&P 500, Nasdaq Composite, and Dow Jones are all down more than 2%. - Reuters reports worries about AI spending and greater scrutiny of data-center expansion are weighing on technology stocks and markets more broadly. - No company-specific catalyst explaining the decline was identified; a leadership appointment announced November 5 does not establish a cause.