Very few companies have gone on as an aggressive stock buyback program as Oracle (ORCL) during FY19. The company far outspent the free cash flow the tech giant generated in the period in a positive sign to shareholders completely buried by the worsened balance sheet. Investors should consider the massive 21% net payout yield as real, but the amount isn't sustainable.
https://seekingalpha.com/article/4288185-oracle-21-percent-yield-last