For companies with extra cash, it's a popular season for buying back their own shares. In the past few years alone, publicly traded companies in the US executed hundreds of billions worth of stock buybacks. And 2024 is on track to be the biggest year in buybacks ever.

So how do they work? And what’s behind their rise in popularity? Bloomberg reporter Lu Wang joins Big Take co-hosts David Gura and Sarah Holder to explain the logic behind buybacks, and unpack who wins and who loses when companies turn to them.