On May 18, 2015, the Supreme Court of the United States issued a unanimous decision in Tibble v. Edison International, holding that an ERISA fiduciary has an ongoing duty to monitor plan investments, and that allegations of a breach of this duty may give rise to a timely claim even when a challenge to the fiduciary’s initial selection of that same investment would be barred by the six-year statute of repose under the Employee Retirement Income Security Act of 19742 (ERISA).