This is why empirical research shows a strong correlation between trends in earnings estimate revisions and near-term stock price movements.For the current quarter, Gilead is expected to post earnings of $1.95 per share, indicating a change of -3% from the year-ago quarter. The Zacks Consensus Estimate has changed +1.1% over the last 30 days.For the current fiscal year, the consensus earnings estimate of $8.02 points to a change of +73.6% from the prior year. Over the last 30 days, this estimate has changed +1.4%.For the next fiscal year, the consensus earnings estimate of $8.53 indicates a change of +6.3% from what Gilead is expected to report a year ago. Over the past month, the estimate has changed +0.6%.Having a strong externally audited track record, our proprietary stock rating tool, the Zacks Rank, offers a more conclusive picture of a stock's price direction in the near term, since it effectively harnesses the power of earnings estimate revisions.