Fair Isaac (FICO) could be a solid choice for investors given the company's remarkably improving earnings outlook. While the stock has been a strong performer lately, this trend might continue since analysts are still raising their earnings estimates for the company.The rising trend in estimate revisions, which is a result of growing analyst optimism on the earnings prospects of this financial services company, should get reflected in its stock price. After all, empirical research shows a strong correlation between trends in earnings estimate revisions and near-term stock price movements. Our stock rating tool -- the Zacks Rank -- has this insight at its core.The five-grade Zacks Rank system, which ranges from a Zacks Rank #1 (Strong Buy) to a Zacks Rank #5 (Strong Sell), has an impressive externally-audited track record of outperformance, with Zacks #1 Ranked stocks generating an average annual return of +25% since 2008.For Fair Isaac, strong agreement among the covering analysts in revising earnings estimates upward has resulted in meaningful improvement in consensus estimates for the next quarter and full year.The chart below shows the evolution of forward 12-month Zacks Consensus EPS estimate:12 Month EPSCurrent-Quarter Estimate RevisionsThe earnings estimate of $3.42 per share for the current quarter represents a change of +24.82% from the number reported a year ago.Over the last 30 days, the Zacks Consensus Estimate for Fair Isaac has increased 28.5% because one estimate has moved higher compared to no negative revisions.Current-Year Estimate RevisionsThe company is expected to earn $15.75 per share for the full year, which represents a change of +20.5% from the prior-year number.There has been an encouraging trend in estimate revisions for the current year as well. Over the past month, one estimate has moved up for Fair Isaac versus no negative revisions. This has pushed the consensus estimate 14.7% higher.Favorable Zacks RankThanks to promising estimate revisions, Fair Isaac currently carries a Zacks Rank #1 (Strong Buy). The Zacks Rank is a tried-and-tested rating tool that helps investors effectively harness the power of earnings estimate revisions and make the right investment decision. You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here.Our research shows that stocks with Zacks Rank #1 (Strong Buy) and 2 (Buy) significantly outperform the S&P 500.Bottom LineWhile strong estimate revisions for Fair Isaac have attracted decent investments and pushed the stock 20.9% higher over the past four weeks, further upside may still be left in the stock. So, you may consider adding it to your portfolio right away. Bitcoin, Like the Internet Itself, Could Change Everything Blockchain and cryptocurrency has sparked one of the most exciting discussion topics of a generation. Some call it the “Internet of Money” and predict it could change the way money works forever. If true, it could do to banks what Netflix did to Blockbuster and Amazon did to Sears. Experts agree we’re still in the early stages of this technology, and as it grows, it will create several investing opportunities. Zacks’ has just revealed 3 companies that can help investors capitalize on the explosive profit potential of Bitcoin and the other cryptocurrencies with significantly less volatility than buying them directly. See 3 crypto-related stocks now >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Fair Isaac Corporation (FICO): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research