More than 2,000 public companies released quarterly earnings during the Q1 reporting period between April 10th and May 16th.  On average, these stocks fell 0.57% on their earnings reaction days, so collectively, investors were net sellers on earnings this past season.  (For a stock that reports before the open, its earnings reaction day is that trading day.  For a stock that reports after the close, its earnings reaction day is the next trading day.)

There were 25 stocks that gained more than 20% on their earnings reaction days this season, and there were 108 that gained more than 10%.  Below is a list of the very best performers.  As shown, Control4 (CTRL) ranks at the top with a one-day gain of 39.6% when it reported on May 9th.  While the company missed revenue estimates, it announced that it was being acquired for $23.91/share — 39.66% above the price it closed at prior to its earnings report.

The same thing happened to the 2nd best performer on earnings this season — Aquantia (AQ).   AQ reported earnings on May 6th, and while it missed both EPS and revenue estimates, it announced that it had been bought by Marvell Technology for $13.25/share.

Behind CTRL and AQ, the next best three stocks on their earnings reaction days this past season were Impinj (PI), Zix Corp (ZIXI), and Enphase Energy (ENPH).  PI and ZIXI both gained nearly 35%, while ENPH gained 29.3%.  Other notables on the list of biggest winners include Sohu.com (SOHU), MercadoLibre (MELI), US Steel (X), and Twitter (TWTR).

While there were 25 stocks that gained more than 20% on their earnings reaction days this season, there were 31 that fell more than 20%.  Additionally, there were 108 stocks that gained more than 10%, but there were 157 that fell more than 10%. In other words, there were more big losers than winners.

At the top of the “biggest losers” list is Stamps.com (STMP), which fell 55.75% on May 9th after its evening report on May 8th.  For STMP, it was its second 50%+ decline on earnings in a row — something that had never happened for any stock in our Earnings Database dating back to 2001!

Behind STMP, we saw Conduent (CNDT) and Puma Biotech (PBYI) both fall more than 38%, while Tenneco (TEN) fell 37.5%.  Other notables on the list of biggest losers this past earnings season include Fluor (FLR), iRobot (IRBT), MarineMax (HZO), Sleep Number (SNBR), and 3D Systems (DDD).  With every company on the list below experiencing a one-day drop of more than 17% recently, this is not a distinguished list that you want to be on if you’re a publicly traded company!  Start a two-week free trial to Bespoke Institutional to access our Earnings Explorer tool and everything else we have to offer.

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