New York - If you think your stocks are doing poorly, check out the performance of some of the most sophisticated investors, the ones with more knowledge about what’s going on inside businesses than anyone else: Companies that buy their own shares.

The companies losing money on these bets are down a collective $126 billion over the past three years, a decline of 15 percent.

Many corporations would have been better off investing that cash in an index fund instead of their own stock. The overall market rose 39 percent over the same period. The companies could also have distributed that cash to shareholders, allowing them to spend what is, in the end, their money.

And it’s not just a few big corporate losers accounting for all the pain. The group includes 229 companies in the Standard and Poor’s 500 index, nearly half of the companies in the study prepared by FactSet for The Associated Press.... Read More: VIN