Outperform the Market, One Quarter at a Time

Harness the power of earnings results vs. investor expectations to optimize your portfolio.

December 17, 2002 – July 24, 2026 Quarterly Returns by Earnings Whisper Grade 0% 1% 2% 3% 4% 5% 6% 7% 8% 9% F: −0.3% average over 5,990 reports (47% finished higher) F D-: +0.8% average over 6,860 reports (50% finished higher) D- D: +1.5% average over 8,637 reports (52% finished higher) D D+: +1.6% average over 13,038 reports (54% finished higher) D+ C-: +2.2% average over 15,595 reports (56% finished higher) C- C: +2.2% average over 14,755 reports (56% finished higher) C C+: +2.8% average over 14,634 reports (57% finished higher) C+ B-: +3.2% average over 12,938 reports (57% finished higher) B- B: +4.1% average over 9,036 reports (59% finished higher) B B+: +4.7% average over 8,632 reports (59% finished higher) B+ A-: +5.6% average over 4,676 reports (59% finished higher) A- A: +7.6% average over 2,299 reports (59% finished higher) A A+: +8.3% average over 4,862 reports (62% finished higher) A+ The S&P 500 has averaged 2.7% per quarter A+ Earnings 37.7% Average Annualized Return 233.3% over the S&P 500 Buying at the open following an earnings release and holding until after its next earnings release.
Average return in the quarter after each grade, since December 2002.

The Earnings Whisper Investor Service is built on a few durable truths:

  • The one consistently proven stock-market anomaly of the past 50+ years is the Post-Earnings Announcement Drift (PEAD).
  • PEAD happens because results shift investor sentiment.
  • Markets keep repeating the pattern because human behavior doesn't change.
  • Rotating regularly into the companies most likely to see a favorable drift turns a modest quarterly edge into significant, compounding outperformance.

Combine those truths and you get a tool that pinpoints where results diverged most from expectations — and the opportunity to meaningfully outperform the broader market.

The Investor Service is anchored by the Earnings Whisper® Grade — a system that evaluates every earnings release against investor expectations and ranks it from F to A+ on the quality of results relative to sentiment.

Since the end of 2002, companies with passing grades have consistently outperformed the market the following quarter, while failing grades have underperformed.

Investing is complex, and many factors move a stock at any moment. But there's a strong, statistically robust edge in favoring companies that report strong results when investors expected the opposite — and vice versa.

Included in the Investor Service:

$100,000 in the A+ strategy against the same amount in the S&P 500, since January 1, 2015
Loading the A+ track record…

Systematic reallocation — the snowball effect

The chart above shows average results by grade since our data begins in December 2002, including backdated results. We began publishing the Earnings Whisper Grade in 2015, and in real time the grades have continued to flag which stocks tend to outperform in a given quarter and which tend to lag. Past performance doesn't guarantee future returns, but the record since 2015 of regularly reallocating into the stocks most likely to outperform speaks for itself.

A $100,000 equally-weighted portfolio started at the beginning of 2015, targeting only companies we reported with A+ Earnings — buying at the open after the announcement and selling just before the next release — would be worth .

That's the snowball effect. No single quarter's edge is dramatic. But rotating regularly into the companies most likely to see a favorable post-earnings drift means each quarter's outperformance compounds on the last, and over years a modest edge repeated consistently separates the portfolio from the index by a wide margin. That is the core benefit of investing with the Earnings Whisper Grade.