AfternsAfterns

ABOUT AFTERNS

afternsAbout AFTERNS

US earnings, the easiest place to see

Earnings data for better decisions.

What's covered

Stocks
1,266 US-listed · Includes every S&P 500 constituent.
History
~12 quarters each · Three years of reports and same-day price reactions.
Figures
14,756 reports · EPS, revenue, surprise vs expectations, earnings-day reaction.
Earnings calls
89 stocks · Management remarks in the original English with Korean translation.

Coverage grows every earnings season: more stocks, more history, more calls. The figures above are current as of today.

What is AFTERNS?

AFTERNS is the easiest place to see US stock earnings. The name is short for “After Earnings.” It brings together everything you need around earnings in one place: report dates and days remaining (D-day), consensus estimates, the price reaction right after each report (a 3-year, ~12-quarter timeline with statistics), full earnings-season stats, and an earnings calendar you can subscribe to in Google or iPhone Calendar. The idea is to prepare an earnings play with past data instead of guesswork, and it pays special attention to the price-vs-results mismatch, where a stock can fall even on strong earnings.

Our core lens

Good results don't guarantee a rising stock. Markets react to expectations already priced in and to guidance, not just the reported numbers. AFTERNS focuses on quantifying mismatch patterns, like “beat consensus, yet fell”, for each stock.

Data sources

Fundamentals (EPS, revenue, quarters) come from SEC EDGAR filings (10-Q/10-K, XBRL). Actual announcement dates, consensus EPS estimates, reported EPS (incl. non-GAAP), and adjusted close prices come from Yahoo Finance aggregates. We cross-check the sources against each other to keep announcement dates and reaction math accurate.

Methodology

  • Next-day reaction: percent change from the last close before the announcement to the first close after it. The same rule applies to before-market (BMO) and after-market (AMC) reports.
  • 5-day drift: from the pre-announcement close to the 5th trading day's close.
  • Excess vs market: the same-day S&P 500 (SPY) move subtracted.
  • Move intensity (σ): the reaction relative to the stock's trailing 63-day daily volatility.
  • Up probability: share of sampled quarters with a positive reaction; stats are hidden below 4 quarters of sample.

Update cadence

Earnings data updates automatically the trading day after each report. Right after a release we show the EPS and revenue flash, and once the next day's close is in we compute the actual next-day price reaction and fold it into the permanent record. Upcoming dates may be consensus-based tentative values until companies confirm them.

Disclaimer

Everything on AFTERNS is for information only, not a buy or sell recommendation or investment advice. Past post-earnings reactions do not guarantee future returns. Collection or processing errors are possible, so verify against original filings before important decisions, and email us if you spot an error.

Frequently asked questions

Is it free?

Yes. Earnings data for every stock is available without signing in. Only personal features such as a watchlist or calendar subscription require an account.

How often is the data updated?

Automatically, every day companies report. Right after a release we show EPS and revenue first; once the next session closes we calculate the earnings-day price reaction and finalize the record.

How quickly do results appear?

EPS and revenue go up right after the release. For after-market reports that is within hours the same evening. Earnings call summaries follow a few hours after the call ends. Only the earnings-day price reaction waits for the next session's close.

Do you cover non-US markets?

We cover US-listed stocks only.

Who runs this

P
Paul
Founder of AFTERNS

Post-earnings price-reaction data was scattered everywhere, so I built AFTERNS to collect it and lay it out at a glance. For data corrections, press or partnership inquiries, reach me by email or the channels below.

Contact

We welcome your feedback to make AFTERNS better. Data corrections and partnership ideas are always welcome: contact@afterns.com