Topic: Nasdaq Composite

Allowing high-frequency computer traders into the stock market is like letting “rats in the granary,” Warren Buffett’s right-hand man said in an exclusive CNBC interview.

Earnings growth is running at nearly 8 percent for the first quarter, better than expected, but companies are issuing the most negative outlooks for the second quarter since late 2008.

The old adage of "sell in May and go away" applies this year just like it did in previous years as problems that plagued the economy in recent years remain unresolved, Richard Cookson, global chief investment officer at Citi Private Bank told CNBC.

The breakdown on the BATS Global Markets exchange was stunning, but market disruptions have been common enough to rattle some investors’ confidence. A review of industry data shows that disruptions large and small are a daily occurrence. The New York Times reports.

There is value in stock markets across the board and - this may come as a surprise to some - there has been a bull market since 2009, Chris Tinker, founding partner at Libra Investment Services told CNBC.

Stocks will continue to move higher and benefit long-term investors, but not without some bumps in the road along the way, the chief economist at Wells Fargo said on Tuesday.

Deutsche Boerse plans to sue the European Commission for blocking its $9 billion merger with NYSE Euronext, to recoup merger costs and keep the door open for future deals in the derivative markets.

The market rally seen in recent sessions could be short lived as many downside risks remain, Gemma Godfrey, head of investment strategy at Brooks Macdonald Asset Management told CNBC Friday.

Despite the turmoil over Greece, and questions over the euro zone bloc’s very survival, equities remain undervalued, market watchers told CNBC.

For stocks on both sides of the Atlantic, the first two weeks of trading of the year have gone better than many analysts were expecting.

What should investors watch in 2012? As the new year dawns, there are plenty of short-term issues on the horizon, ranging from the eurozone to fiscal gridlock in the US to upheavals in the Middle East. The Financial Times reports

Despair will turn to hope in 2012 following stock losses in the first quarter, according to analysts at Goldman Sachs portfolio strategy research team.

Wednesday’s 400-plus point jump in the Dow following news the world's major central banks are taking further coordinated action to reduce the interest rate on dollar swaps shows the market is hungry for action to resolve the euro zone debt crisis, according to analysts at Barclays Capital.

On Wednesday, Angie's List priced its offering of 8.8 million shares at $13 each. This was at the top of the range it had expected.