Mark Koba

Mark Koba
Senior Editor, CNBC

Mark Koba is a senior editor at CNBC.com. Topics for his feature story writing include the business of politics, health care, employment and the economy.

Before working at CNBC.com, he spent 11 years at Bloomberg LP, where among various duties, he was program producer for the award-winning "Bloomberg Small Business" television show.

Koba's background includes a decade of news writing and show producing at CNN, E! Entertainment Television, ABC's "World News Now," "Good Morning America" and CBS' "This Morning."

Follow Mark Koba on Twitter @MarkKobaCNBC.


  • Contest Analysis and Look At Popular Trading Sectors
    By: Mark Koba
    Thursday, 15 Mar 2007 | 9:55 AM ET

    Here's some analysis of the 293 transactions that have been executed in the top 25 portfolios on the leaderboard after the close on Wednesday--3/14. As you can see, it shows that the largest percentage of transactions (buys/sells) is happening within retail followed by financial services and then technology.

  • Your Emails And More Answers
    By: Mark Koba
    Thursday, 15 Mar 2007 | 9:20 AM ET

    Hey folks. We've got a few email questions and comments that came in yesterday that may be beneficial for all of us to read. Here they are--with some answers. Charles wrote: Since the weekly winner is determined not by portfolio size but rather by percent increase in portfolio the leader board should be based on this as well...

  • Celeb Ernie Hudson: Better Off Just Holding The Cash??
    By: Mark Koba
    Wednesday, 14 Mar 2007 | 4:58 PM ET

    Ernie Hudson is currently co-starring on ABC's "Desperate Housewives" and has over 100 film and television credits on his resume. He's now ready to add the credit of celebrity stock picker for our "Trading With The Stars" part of our Million Dollar Portfolio Contest.