Earnings are arguably the most important single number on a company's quarterly financial report. Wall Street clearly dives into all of the other metrics and management's input, but the EPS figure helps cut through all the noise.The earnings figure itself is key, of course, but a beat or miss on the bottom line can sometimes be just as, if not more, important. Therefore, investors should consider paying close attention to these earnings surprises, as a big beat can help a stock climb and vice versa.Hunting for 'earnings whispers' or companies poised to beat their quarterly earnings estimates is a somewhat common practice. But that doesn't make it easy. One way that has been proven to work is by using the Zacks Earnings ESP tool.The Zacks Earnings ESP, ExplainedThe Zacks Expected Surprise Prediction, or ESP, works by locking in on the most up-to-date analyst earnings revisions because they can be more accurate than estimates from weeks or even months before the actual release date. The thinking is pretty straightforward: analysts who provide earnings estimates closer to the report are likely to have more information.The core of the ESP model is comparing the Most Accurate Estimate to the Zacks Consensus Estimate, where the resulting percentage difference between the two equals the Expected Surprise Prediction. The Zacks Rank is also factored into the ESP metric to better help find companies that appear poised to top their next bottom-line consensus estimate, which will hopefully help lift the stock price.When we join a positive earnings ESP with a Zacks Rank #3 (Hold) or stronger, stocks posted a positive bottom-line surprise 70% of the time. Plus, this system saw investors produce roughly 28% annual returns on average, according to our 10 year backtest.Stocks with a #3 (Hold) ranking, which is most stocks covered at 60%, are expected to perform in-line with the broader market. But stocks that fall into the #2 (Buy) and #1 (Strong Buy) ranking, or the top 15% and top 5% of stocks, respectively, should outperform the market. Strong Buy stocks should outperform more than any other rank.Should You Consider Oracle?The final step today is to look at a stock that meets our ESP qualifications. Oracle (ORCL) earns a #3 (Hold) 28 days from its next quarterly earnings release on September 12, 2022, and its Most Accurate Estimate comes in at $1.08 a share.By taking the percentage difference between the $1.08 Most Accurate Estimate and the $1.07 Zacks Consensus Estimate, Oracle has an Earnings ESP of +1.41%. Investors should also know that ORCL is one of a large group of stocks with positive ESPs. Make sure to utilize our Earnings ESP Filter to uncover the best stocks to buy or sell before they've reported.ORCL is part of a big group of Computer and Technology stocks that boast a positive ESP, and investors may want to take a look at F5 Networks (FFIV) as well.F5 Networks is a Zacks Rank #2 (Buy) stock, and is getting ready to report earnings on October 25, 2022. FFIV's Most Accurate Estimate sits at $2.54 a share 71 days from its next earnings release.For F5 Networks, the percentage difference between its Most Accurate Estimate and its Zacks Consensus Estimate of $2.52 is +0.99%.ORCL and FFIV's positive ESP figures tell us that both stocks have a good chance at beating analyst expectations in their next earnings report.Find Stocks to Buy or Sell Before They're ReportedUse the Zacks Earnings ESP Filter to turn up stocks with the highest probability of positively, or negatively, surprising to buy or sell before they're reported for profitable earnings season trading. Check it out here >> Zacks Names "Single Best Pick to Double" From thousands of stocks, 5 Zacks experts each have chosen their favorite to skyrocket +100% or more in months to come. From those 5, Director of Research Sheraz Mian hand-picks one to have the most explosive upside of all. It’s a little-known chemical company that’s up 65% over last year, yet still dirt cheap. With unrelenting demand, soaring 2022 earnings estimates, and $1.5 billion for repurchasing shares, retail investors could jump in at any time. This company could rival or surpass other recent Zacks’ Stocks Set to Double like Boston Beer Company which shot up +143.0% in little more than 9 months and NVIDIA which boomed +175.9% in one year.Free: See Our Top Stock and 4 Runners Up >>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 Oracle Corporation (ORCL): Free Stock Analysis Report F5, Inc. (FFIV): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research