Summary: Global stocks including U.S. equities fell sharply as Russia occupied the Ukraine's Crimea region, with the threat of further action elsewhere in the country. Safe havens such as gold and oil jumped while most European markets shed more than 2%. A raft of positive U.S. economic data was ignored as the domestic equity market shifted to risk-off mode, with agriculture and energy stocks seen as the most vulnerable if the situation escalates. TheStreet's Jane Searle speaks to Matt Cheslock of Virtu Financial at the NYSE.
