Alcoa shares have fallen 8 percent this year and closed Friday at $7.96, up 10 cents for the day.WHAT'S EXPECTED: Analysts predict that Alcoa will report bottom-line earnings of 6 cents per share, according to a survey by FactSet. Analysts expect revenue of $5.67 billion. LAST YEAR'S QUARTER: Alcoa posted a loss of $143 million, or 13 cents per share, a year ago. Excluding items, it would have earned 3 cents per share. Revenue was $5.83 billion.