During the COVID-19 lockdowns, corporate cash flows dropped dramatically, which led to a decline in both dividends and stock buybacks. Now, companies are beginning to discuss an increase in buybacks. Buybacks in the fourth quarter of 2020 were $116 billion, up from $102 billion in the third quarter. For 2021, buybacks are expected to reach $651 billion, a big jump from 2020's $505 billion.