Quarterly financial reports play a vital role on Wall Street, as they help investors see how a company has performed and what might be coming down the road in the near-term. And out of all of the metrics and results to consider, earnings is one of the most important.
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.
The ability to identify stocks that are likely to top quarterly earnings expectations can be profitable, but it's no simple task. Here at Zacks, our Earnings ESP filter helps make things easier.
The Zacks Earnings ESP, Explained
The 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.
With this in mind, the Expected Surprise Prediction compares the Most Accurate Estimate (being the most recent) against the overall Zacks Consensus Estimate. The percentage difference provides the ESP figure. The system also utilizes our core Zacks Rank to provide a stronger system for identifying stocks that might beat their next quarterly earnings estimate and possibly see the stock price climb.
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 ranking of #3 (Hold), or 60% of all stocks covered by the Zacks Rank, are expected to perform in-line with the broader market. Stocks with rankings of #2 (Buy) and #1 (Strong Buy), 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 Teladoc?
Now that we understand what the ESP is and how beneficial it can be, let's dive into a stock that currently fits the bill. Teladoc (TDOC) earns a #2 (Buy) right now and its Most Accurate Estimate sits at -$0.23 a share, just 13 days from its upcoming earnings release on October 29, 2025.
TDOC has an Earnings ESP figure of +11.24%, which, as explained above, is calculated by taking the percentage difference between the -$0.23 Most Accurate Estimate and the Zacks Consensus Estimate of -$0.26. Teladoc is one of a large database 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.
TDOC is just one of a large group of Medical stocks with a positive ESP figure. Idexx Laboratories (IDXX) is another qualifying stock you may want to consider.
Idexx Laboratories is a Zacks Rank #2 (Buy) stock, and is getting ready to report earnings on November 3, 2025. IDXX's Most Accurate Estimate sits at $3.15 a share 18 days from its next earnings release.
Idexx Laboratories' Earnings ESP figure currently stands at +0.23% after taking the percentage difference between its Most Accurate Estimate and its Zacks Consensus Estimate of $3.14.
TDOC and IDXX's positive ESP metrics may signal that a positive earnings surprise for both stocks is on the horizon.
Find Stocks to Buy or Sell Before They're Reported
Use 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 >>
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Teladoc Health, Inc. (TDOC): Free Stock Analysis Report IDEXX Laboratories, Inc. (IDXX): Free Stock Analysis ReportThis article originally published on Zacks Investment Research (zacks.com).
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