Top Stories: Business and Finance

Dec. 17 (Bloomberg) -- The following are the day's top business stories:

1. Picower Estate to Forfeit $7.2 Billion in Biggest Madoff Fraud Settlement 2. Treasuries, Stocks Advance as Yields, Profit Forecasts Attract Investors 3. Greenspan Says U.S. Economy Picking Up, May Grow as Much as 3.5% Next Year 4. Finra Retooling Market Surveillance to Catch Abuses Like Insider Trading 5. Billionaire Icahn Seeks Talks With Chesapeake Energy After Boosting Stake 6. IMF Approves $3.3 Billion for Greece Amid `Impressive' Fiscal Adjustment 7. Flextronics' Shimoon Loses Bail Request in Hedge Fund Insider-Trading Case 8. AT&T to Buy Back Up to $8.77 Billion of Stock as Wireless Unit Boosts Cash 9. Siemens May Help Fund Cape Cod Wind-Power Project, U.S. CEO Spiegel Says 10.Build America Boom Is Set to Bust After Busiest Issuance Week: Muni Credit 11.Stocks Rising 17% Since Bernanke Disclosed QE2 Disarms Fed's Worst Critics 12.Insider-Trading Probe in U.S. May Speed Attrition Among Expert Networks