Dropping nearly 100 points in the final hour-and-a-half of trading, the Dow Jones Industrial Average (^DJI 0.69%), which had been flirting with all-time highs, ended lower today, losing 20 points, or 0.15%, to close at 14,054. After four 100-point swings in the last four trading days, today's losses were tempered, as revised GDP figures showed growth in the fourth quarter; earlier figures had shown GDP declining. 

Hewlett-Packard (HPQ -0.11%) continues to be the Dow's hottest stock of the year (last year it was the biggest blue chip loser), and has risen a remarkable 41% in the first two months of 2013. After last week's impressive quarterly report showed progress in HP's turnaround, and this week's talk of an affordable, Android-run tablet, bulls are piling back into the stock with renewed confidence. Shares were up 1.8% Thursday to lead the Dow. 

At the other end of the blue-chip spectrum today were Wal-Mart (WMT -1.75%) shares, which lost 1.1%. The massive retailer lost ground on news that its Chief Administrative Officer will be leaving the company in mid-March. One of the responsibilities of that job is labor relations, and those certainly could be going more smoothly. Some workers have been on strike at the company, and a number of employees walked out on Black Friday in November.

Shares of the global nutrition company Herbalife (HLF 1.65%) rose 7.6% today on news that activist investor Carl Icahn will be granted the ability to nominate two board members, as well as the right to own up to 25% of Herbalife common stock. Icahn expressed his confidence in the business today; he already holds more than a 13% stake in the company.

Lastly, Groupon (GRPN 10.02%) again made the news today, just a day after a horrendous earnings report that sent the stock tumbling. Today, co-founder and CEO Andrew Mason was replaced with two interim CEOs: Eric Lefkofsky and Ted Leonsis. Mason had been CEO for more than four years -- years that saw the stock plummet to about a quarter of its original listing price. Shares in the daily deals site rose after hours on the news of Mason's departure.