Stocks in focus for Tuesday By: MarketWatch January 16, 2010 at 15:05 PM EST Among the companies whose shares are expected to see active trading when markets re-open Tuesday after the Martin Luther King Jr. Day holiday are IBM, Citigroup and CSX. Read More >> Related Stocks: AT&T Inc Amtd Idea Group Apple CSX Corp Fastenal Co International Business Machines Parker-Hannifin Verizon Communications