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COSTCostco Wholesale Corporation
Next verified earnings Dec 10, 2026 · Seasonality
Earnings seasonality
Observed earnings moves by calendar announcement quarter · select a quarter to inspect its events.
36 stored events. Calendar quarters are not fiscal quarters. This is earnings-event seasonality, not daily stock-return seasonality or a forecast.
| Announcement date | Actual signed move | Implied move |
|---|---|---|
| May 27, 2010 | 4.9% | 5.8% |
| Dec 8, 2010 | -0.6% | 3.4% |
| May 25, 2011 | -1.3% | 4.7% |
| Feb 29, 2012 | 0.9% | 3.6% |
| May 24, 2012 | 1.4% | 4.8% |
| Dec 12, 2012 | -0.6% | 3.4% |
| May 30, 2013 | -0.9% | 3.2% |
| Dec 11, 2013 | -1.2% | 2.5% |
| May 29, 2014 | -0.1% | 2.1% |
| Oct 8, 2014 | 2.8% | 2.5% |
| Dec 10, 2014 | -2.0% | 2.0% |
| May 27, 2015 | -0.8% | 2.4% |
| Sep 29, 2015 | 0.6% | 3.3% |
| Dec 8, 2015 | -5.4% | 2.9% |
| May 25, 2016 | 3.6% | 3.3% |
| Sep 29, 2016 | 3.4% | 3.0% |
| Dec 7, 2016 | 2.4% | 3.1% |
| May 25, 2017 | 1.8% | 2.6% |
| Oct 5, 2017 | -6.0% | 3.2% |
| Dec 14, 2017 | 3.3% | 3.4% |
| May 31, 2018 | -0.6% | 3.1% |
| Oct 4, 2018 | -5.6% | 2.7% |
| Dec 13, 2018 | -8.6% | 3.9% |
| May 30, 2019 | -0.8% | 4.1% |
| Oct 3, 2019 | 0.9% | 4.5% |
| Dec 12, 2019 | -1.8% | 3.5% |
| Mar 5, 2020 | -1.4% | 4.4% |
| May 28, 2020 | -0.4% | 3.3% |
| Sep 24, 2020 | -1.3% | 4.4% |
| Dec 10, 2020 | 0.6% | 2.7% |
| May 27, 2021 | -2.4% | 2.4% |
| Jun 1, 2023 | 0.2% | 2.0% |
| Mar 7, 2024 | -7.6% | 6.0% |
| Jun 6, 2024 | 0.3% | 1.4% |
| Sep 26, 2024 | -1.8% | 3.8% |
| Sep 24, 2026 | 2.9% | 3.4% |