 Ruane Cunniff Trades, Portfolio, the firm founded by the late William Ruane, disclosed this week that its top five trades during the third quarter included additions to its holdings in Wayfair Inc. W , Financial and Taiwan Semiconductor Manufacturing Co. Ltd. TSM , Financial, the closure of its positions in Fidelity National Information Services Inc. FIS , Financial and Arista Networks Inc. ANET , Financial and a reduction to its stake in Credit Acceptance Corp. CACC , Financial. 