Jim Simons of Renaissance Technologies is not as famous as other hedge fund managers like George Soros, Julian Robertson, or Paul Tudor Jones. But Simons is revered on Wall Street for delivering average annual returns of 38% since 1982 (after fees).

The announcements yesterday of Yahoo’s content deal with CBS and a display ad agreement for Wal-Mart’s website were understandably overshadowed by the

For Warren Buffett, “be fearful when others are greedy and greedy when others are fearful” isn’t just an empty slogan — at least not judging by his most recent disclosures.In the first quarter, during the midst of the credit crunch, Buffett add

It has been an extraordinary week for Lehman Brothers, whose shares were bouncing for a second day Thursday after sliding nearly 17% on Monday and Tuesday this week.Earlier today, short-seller David Einhorn of Greenlight Capital was back on CNBC to (re)st

Jeff Clavier, founder and managing partner at SoftTech VC, has a message for all the start-ups out there, shopping for funding. He may support you – but don’t expect a babysitter anymore. It’s yet another piece in the shifting venture capital

The war of words between Carl Icahn and Yahoo’s board ratcheted up yesterday. After Icahn called Yahoo “deceitful” and said it tried to “sabotage” the Microsoft bid, Yahoo president

From Silicon Alley Insider, June 5, 2008:Next Monday, Apple (AAPL) chief Steve Jobs is expected to show off the long-awaited, second-edition iPhone. …

We’ve got the day’s wrap and a look ahead for you in today’s Dirt. Our topics include Web 2.0 and Barack Obama’s match made in heaven and rumors of a $27 billion Verizon-Alltell deal. Also, save the date Apple fans! The Worldwide Developer Forum is next w

In a sharply worded letter, Carl Ichan called on Yahoo to rescind its controversial employee retention package that could cost a potential Yahoo acquirer billions. But this afternoon, Yahoo President Sue Decker defending the plan to