Plaintiffs brought a putative class action on behalf of current and former UBS and UBSFS employees, alleging that defendants violated various fiduciary duties imposed on them by the Employee Retirement Income Security Act of 1974 (ERISA), 29 U.S.C. 1001 et seq. Plaintiffs argued that the district court erred in analyzing their claim for breach of the duty of prudence, as it applied a presumption of prudence to the fiduciaries of both investment plans at issue. The court held that the district court wrongly applied the presumption as to one of the two plans, the Savings and Investment Plan (SIP), as the SIP Plan Document neither required nor strongly encouraged investment in UBS stock or the UBS Stock Fund. The court held, however, that the District Court correctly applied the presumption of prudence as to the second plan, the Plus Plan, which required plan fiduciaries to invest in the UBS Stock Fund. Accordingly, the court affirmed the dismissal order of the district court in part, vacated in part, and remanded the case for further proceedings. Plaintiffs’ remaining arguments were addressed in a companion Summary Order.