Biogen Inc. (BIIB - Get Report) is expected to report adjusted net income of $1.5 billion, or $8.28 a share, on sales of $3.5 billion before the market opens on Tuesday, based on a FactSet survey of 25 analysts.

In the same period a year ago, the company posted earnings of $7.40 a share on sales of $3.4 billion. It reported net income of $866.6 million.

The stock has fallen 9.8% since the company last reported earnings on July 23.

Quarterly estimates have risen 5.3 cents a share in the past month.

In the upcoming quarter, analysts are forecasting adjusted net income of $1.5 billion, or $7.98 a share, on sales of $3.5 billion.

Biogen is currently trading at a price-to-forward-earnings ratio of 6.9 based on the 12-month estimates of 27 analysts surveyed by FactSet.

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