City of Pontiac Policemen's and Firemen's Retirement System et al. v. UBS AG et al. Defense counsel retained Cornerstone Research in a putative class action in which the plaintiffs alleged that Swiss-based bank UBS was liable to shareholders for credit-crisis-related losses. The issues included whether investors could bring claims for shares purchased on a foreign exchange, if those shares were dually listed on a domestic exchange, or if the purchase followed a "buy order" placed in the United States.

In the case of City of Pontiac Policemen's and Firemen's Retirement System et al. v. UBS AG et al., why did defense counsel retain Cornerstone Research