The firm also lowered its price target to $42 per share from $53. The company's previous closing price was $52.58.
The firm said the enterprise software company's rate of buying back $10 billion in shares per quarter "can't last forever." Analyst Christopher Eberle believes that the company is "significantly underinvesting" in research and development compared with its peers in the IT space.
Additionally, the firm said that even if Oracle reduces its buyback program to the historical average of $3 billion a quarter over the next two years it will not be enough to meet consensus estimates.
Oracle shares have gained nearly 18% year to date, but the stock is basically flat over the past 12 months after reaching a low below $43 per share in late December.
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