Cisco Systems (CSCO) had the highest return between January 10, 1991 and December 15, 1999 by a US stock with a market cap of $10B+, returning 33,165.5%.
Cisco Systems (CSCO) had the highest return between April 10, 1991 and December 15, 1999 by a US stock with a market cap of $10B+, returning 27,101.9%.
Sorry, available market cap data for Jack Henry & Associates (JKHY) starts on January 2, 2009. Jack Henry & Associates (JKHY) has a market capitalization of $12.4B, based on 72.91M shares at a price of $169.64 (down 2% on Friday).