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• Cost worries dog "CAT" plan to monitor U.S. stock market Monday, 17 Jun 2013 | 2:01 PM ET

  NEW YORK, June 17- Concerns about how much it will cost to build a new surveillance system for the U.S. stock market hang over a project regulators demanded after it took months to pull together the data needed to investigate the "flash crash" of May 2010.

• Nasdaq names new US markets manager Wednesday, 12 Jun 2013 | 6:43 PM ET

  NEW YORK-- Nasdaq OMX Group Inc. has promoted Thomas Wittman to oversee its three U.S. stock exchanges, adding to his existing duties running domestic options platforms and a futures exchange. Wittman was promoted last week and a Nasdaq OMX representative confirmed the move on Wednesday.

• UPDATE 1-CBOE to settle U.S. SEC charges of regulatory failure Tuesday, 11 Jun 2013 | 2:35 PM ET

  *SEC says CBOE failed to police for short-selling abuses. *SEC says CBOE edited optionsXpress "Wells" notice reply. *CBOE says exchange is implementing remedial measures.

• U.S. senator urges exchanges to require one-share-one-vote system Wednesday, 5 Jun 2013 | 3:39 PM ET

  June 5- A U.S. senator has asked exchange operators NYSE Euronext and Nasdaq OMX Group to consider proposing rules that would require the companies that list their shares with them to have "one share, one vote" corporate structures. Representatives at NYSE and Nasdaq declined to comment.

• UPDATE 2-Nasdaq to pay $10 mln to settle SEC charges from Facebook snafu Wednesday, 29 May 2013 | 3:11 PM ET

  WASHINGTON, May 29- Nasdaq OMX on Wednesday agreed to pay $10 million, the largest penalty ever levied against a stock exchange, to settle civil charges stemming from mistakes made during Facebook's initial public offering last year, U.S. securities regulators said on Wednesday.

• Nasdaq Hit With $10 Million Fine for Facebook IPO Wednesday, 29 May 2013 | 11:59 AM ET

  

  Nasdaq has agreed to pay the SEC $10 million for alleged securities laws violations resulting from its "poor systems and decision-making" during the Facebook IPO.

• U.S. options clearer moves to end trade type dominated by Nasdaq Thursday, 23 May 2013 | 7:47 PM ET

  SAN FRANCISCO, May 23- The clearinghouse for all U.S. stock options said Thursday it will adopt a policy aimed at abolishing a dividend-linked trading strategy that critics say could destabilize markets if left unchecked.

• Bernanke...Pre-Empted by Dudley Wednesday, 22 May 2013 | 9:57 AM ET

  

  Bernanke pre-empted by Dudley: Will he throw it back into Congress' lap?

• Strange Days: Roaring Markets but Sketchy Data Wednesday, 15 May 2013 | 9:32 AM ET

  

  Rep. Scott Garrett intends to show that he and his committee are serious about oversight of the Securities and Exchanges Commission.

• Congress to SEC: We Have Our Eyes On You Monday, 13 May 2013 | 10:01 AM ET

  

  Rep. Scott Garrett intends to show that he and his committee are serious about oversight of the Securities and Exchanges Commission.

• Nasdaq Hits 12-Year High  Thursday, 9 May 2013 | 4:00 PM ET

  

  CNBC's Bertha Coombs reports on the big tech movers today.

• U.S. Treasury chief to meet with Wall Street executives Thursday, 2 May 2013 | 7:41 PM ET

  Treasury Secretary Jack Lew will meet with Wall Street and business executives in New York on Thursday evening to discuss issues, including how to strengthen the U.S. economic recovery and further reduce the deficit, an official said.

• Nasdaq Composite Hits 12.5-Year High  Thursday, 2 May 2013 | 3:15 PM ET

  

  The Nasdaq is leading today's market rally, with Facebook having a big day after its earnings last night, with CNBC's Seema Mody.

• UPDATE 1-Facebook and banks ask U.S. judge to throw out IPO lawsuit Wednesday, 1 May 2013 | 11:34 AM ET

  *Facebook shares remain below IPO price. May 1- Facebook Inc, its Chief Executive Mark Zuckerberg and dozens of banks asked a federal judge to throw out a lawsuit accusing the social media company of misleading investors about its financial condition before its $16 billion initial public offering a year ago.

• Facebook and banks ask U.S. judge to throw out IPO lawsuit Wednesday, 1 May 2013 | 9:18 AM ET

  *Facebook shares remain below IPO price. May 1- Facebook Inc, its Chief Executive Mark Zuckerberg and dozens of banks asked a federal judge to throw out a lawsuit accusing the social media company of misleading investors about its financial condition before its $16 billion initial public offering a year ago.

• Symantec Recovers Some Losses After Mysterious Flash Move Tuesday, 30 Apr 2013 | 2:35 PM ET

  

  Unusual activity in shares of Symantec today triggered a trading halt, and had traders buzzing on Twitter about another single stock flash move.

• Nasdaq plans to launch ETP trading platform in May Monday, 29 Apr 2013 | 10:18 AM ET

  NEW YORK, April 29- Exchange operator Nasdaq OMX Group said on Monday it will relaunch PSX, its third trading platform, in May with a specific focus on exchange-traded products. Nasdaq first launched PSX in May 2010, using the license it acquired when it bought the Philadelphia Stock Exchange in 2008..

• UPDATE 3-CBOE dark for much of day due to software glitch Thursday, 25 Apr 2013 | 5:34 PM ET

  *Outage meant no access to CBOE options on S&P 500, VIX. *CBOE opened all options trading at 1 p.m. EDT ( 1700 GMT.

• UPDATE 2-CBOE reopens after more than three-hour delay Thursday, 25 Apr 2013 | 2:45 PM ET

  *CBOE opened all options trading at 1 p.m. EDT ( 1700 GMT. *Outage meant investors had no access to CBOE options on S&P 500, VIX.

• Dow Snaps 3-Day Rally; Telecoms Log Worst Day Since August 2011 Wednesday, 24 Apr 2013 | 5:32 PM ET

  

  The Dow snapped a three-day rally Wednesday, while the S&P 500 and Nasdaq finished nearly flat in lackluster trading, as investors digested a batch of corporate earnings against a disappointing durable goods orders report.