LANC data by YCharts Other additions for 2013 include Carbo Ceramics ( CRR), DeVry ( DV), RLI ( RLI), International Speedway ( ISCA), Knight Transportation ( KMX), Tennant ( TNC), American Equity Investment Life ( AEL), Badger Meter ( BMI), Epoch Holding ( EPHC), Gorman Rupp ( GRC) and National Interstate ( NATL). Some of last year's qualifiers are not included this year, simply because their market caps increased beyond the $2 billion mark. These include last year's top performer A.O. Smith ( AOS), as well as ITT ( ITT). There may be value in doing a similar search that focuses on companies with market caps greater than $2 billion. At the time of publication the author held no positions in any of the stocks mentioned.Follow @JonMHellerCFAThis article is commentary by an independent contributor, separate from TheStreet's regular news coverage.