• Citigroup posted its first profit in 18 months today, which made Wall Street very happy and sent Citi shares up to a whopping $4. [WSJ, DB]
• GE's first-quarter profit fell less than expected, dropping 35% compared to a year earlier, results that gave shares a boost in early trading. [BN, WSJ]
• AIG chief Ed Liddy still owns a big stake in Goldman Sachs, info that will be most pleasing to Goldman conspiracy theorists out there. [NYT, NYT]
• Is the banking business showing signs of recovery? [NYT]
• Carl Icahn and Kirk Kerkorian are locked in battle over MGM Mirage. [WSJ]
• General Growth Properties's bankruptcy will make hedge funder Bill Ackman a very rich man. And he already happens to be a very rich man. [NYT]
• The president of the Federal Reserve Bank of San Francisco now says it was a mistake to allow Lehman Brothers to collapse. Now you tell us? [BN]