Costco (COST)

$975.16 -0.87%

EARNINGS ANALYTICS

event_note Approx. Next Earnings: ~2026-09-25 APPROXIMATE

Across 75 earnings reports since Mar 02, 2005, Costco (COST) has a clear post-earnings pattern. It moves ±1.94% on average after reporting and finishes higher 45.3% of the time. Its largest post-earnings gain was +6.58% (Dec 09, 2021) and its largest decline was -8.59% (Dec 13, 2018). The next earnings report is predicted for 2026-09-25 (approximate).

Earnings Price Reaction

Scroll to zoom, drag to pan — click earnings dots for details

Beat Miss

Earnings Impact

Total Earnings

Avg Abs. Movement

±1.94%

Positive %

45.3%

Negative %

54.7%

Historical Earnings Statistics

Date	Timing	Open	High	Close	Volume	Movement %	SEC Filing
May 28, 2026	☽ POST	$1011.50	$1011.59	$995.27	104,931	-3.94%	open_in_new
Mar 05, 2026	☽ POST	$996.50	$999.25	$982.57	2,766,000	+1.58%	open_in_new
Dec 11, 2025	☽ POST	$874.67	$884.79	$883.27	3,041,600	+0%	open_in_new
Sep 25, 2025	☽ POST	$949.81	$950.36	$940.69	2,991,500	-2.9%	open_in_new
May 29, 2025	☽ POST	$1011.79	$1013.31	$1004.55	2,016,700	+3.12%	open_in_new
Mar 06, 2025	☽ POST	$1027.32	$1040.19	$1021.02	2,594,600	-6.07%	open_in_new
Dec 12, 2024	☽ POST	$995.12	$995.91	$981.92	2,344,300	+0.1%	open_in_new
Sep 26, 2024	☽ POST	$898.18	$902.09	$894.35	2,738,600	-1.75%	open_in_new
May 30, 2024	☽ POST	$802.68	$811.90	$807.78	2,277,800	-0.67%	open_in_new
Mar 07, 2024	☽ POST	$770.65	$778.53	$777.05	4,187,900	-7.64%	open_in_new
Dec 14, 2023	☽ POST	$619.20	$619.90	$609.16	3,839,200	+4.45%	open_in_new
Sep 26, 2023	☽ POST	$538.99	$541.13	$533.03	2,425,100	+1.91%	open_in_new
May 25, 2023	☽ POST	$462.03	$470.04	$468.13	3,421,900	+4.26%	open_in_new
Mar 03, 2023	☽ POST	$455.90	$457.02	$456.31	5,354,200	+1.65%	open_in_new
Dec 09, 2022	☽ POST	$455.37	$469.73	$462.96	4,211,100	+0.96%	open_in_new
Sep 23, 2022	☽ POST	$458.22	$461.45	$446.22	5,377,800	+2.98%	open_in_new
May 26, 2022	☽ POST	$428.93	$447.03	$444.11	5,917,600	+1.24%	open_in_new
Mar 04, 2022	☽ POST	$495.36	$505.30	$501.08	4,417,900	+0.57%	open_in_new
Dec 09, 2021	☽ POST	$503.47	$506.83	$499.21	3,200,500	+6.58%	open_in_new
Sep 23, 2021	☽ POST	$429.94	$433.03	$430.39	2,061,200	+3.31%	open_in_new
May 27, 2021	☽ POST	$365.40	$367.91	$367.65	4,452,000	-2.38%	open_in_new
Mar 04, 2021	☽ POST	$306.15	$308.26	$302.05	5,501,200	-0.54%	open_in_new
Dec 10, 2020	☽ POST	$353.66	$354.33	$352.24	2,566,300	+0.62%	open_in_new
Sep 24, 2020	☽ POST	$317.06	$319.20	$318.89	5,779,300	-1.27%	open_in_new
May 28, 2020	☽ POST	$281.76	$285.20	$283.88	4,301,900	-0.35%	open_in_new
Mar 05, 2020	☽ POST	$288.91	$296.91	$288.90	6,407,700	-1.4%	open_in_new
Dec 12, 2019	☽ POST	$269.59	$271.86	$271.48	2,742,700	-1.84%	open_in_new
May 31, 2019	☽ POST	$217.24	$218.77	$217.78	4,058,100	+0.62%	open_in_new
Mar 07, 2019	☽ POST	$197.75	$198.89	$196.54	3,279,100	+5.09%	open_in_new
Dec 13, 2018	☽ POST	$206.90	$207.61	$204.79	2,170,200	-8.59%	open_in_new
Jun 01, 2018	☽ POST	$175.86	$179.04	$177.37	4,056,400	+0.76%	open_in_new
Mar 07, 2018	☽ POST	$169.75	$170.23	$168.09	5,157,100	-0.89%	open_in_new
Dec 15, 2017	☽ POST	$173.05	$174.79	$172.44	8,452,900	-0.22%	open_in_new
May 26, 2017	☽ POST	$160.29	$160.37	$158.16	4,471,300	+0.6%	open_in_new
Mar 03, 2017	☽ POST	$145.48	$146.49	$145.10	10,396,500	-2.07%	open_in_new
Dec 08, 2016	☽ POST	$133.14	$136.76	$133.94	5,504,300	+1.34%	open_in_new
Sep 29, 2016	☽ POST	$126.41	$126.84	$124.97	4,501,300	+3.4%	open_in_new
May 26, 2016	☽ POST	$125.92	$130.04	$126.51	7,679,400	-0.42%	open_in_new
Mar 03, 2016	☀ PRE	$125.17	$128.04	$127.73	5,552,600	-0.78%	open_in_new
Dec 09, 2015	☀ PRE	$136.73	$137.72	$134.21	9,527,000	-5.42%	open_in_new
Sep 30, 2015	☀ PRE	$120.31	$121.49	$121.17	2,549,200	+0.59%	open_in_new
May 28, 2015	☽ POST	$120.63	$122.01	$120.58	3,206,200	-1.16%	open_in_new
Mar 05, 2015	☀ PRE	$125.67	$126.49	$126.01	4,471,100	+2.72%	open_in_new
Dec 10, 2014	☀ PRE	$116.66	$118.17	$112.89	4,910,300	-1.95%	open_in_new
May 29, 2014	☀ PRE	$91.71	$92.20	$91.36	2,976,700	-0.09%	open_in_new
Mar 14, 2014	☽ POST	$91.72	$91.72	$90.53	2,290,000	+0.01%	open_in_new
Dec 11, 2013	☀ PRE	$93.98	$95.73	$94.36	6,113,600	-1.22%	open_in_new
May 30, 2013	☀ PRE	$90.48	$91.43	$88.58	3,459,400	-0.95%	open_in_new
Mar 12, 2013	☀ PRE	$81.80	$83.31	$81.91	3,795,000	+1.28%	open_in_new
Dec 12, 2012	☀ PRE	$77.97	$78.26	$76.95	5,390,300	-0.6%	open_in_new
May 24, 2012	☀ PRE	$61.60	$62.35	$61.77	3,558,300	+1.4%	open_in_new
Feb 29, 2012	☀ PRE	$62.81	$63.55	$62.72	5,345,100	+0.93%	open_in_new
Dec 08, 2011	☽ POST	$61.67	$63.19	$62.32	4,377,800	-1.62%	open_in_new
Sep 01, 2011	☽ POST	$57.23	$58.63	$57.59	3,998,300	-1.16%	open_in_new
May 25, 2011	☀ PRE	$58.02	$58.34	$58.02	5,232,000	-1.27%	open_in_new
Mar 02, 2011	☀ PRE	$52.94	$53.13	$51.68	6,197,500	-2.53%	open_in_new
Dec 08, 2010	☀ PRE	$49.83	$50.07	$49.74	3,691,400	-0.56%	open_in_new
May 27, 2010	☀ PRE	$40.90	$42.27	$41.90	8,764,500	+4.93%	open_in_new
Mar 03, 2010	☀ PRE	$42.48	$43.78	$43.14	10,153,500	-1.14%	open_in_new
Dec 10, 2009	☀ PRE	$41.92	$42.07	$41.64	5,576,500	+0.17%	open_in_new
May 28, 2009	☀ PRE	$33.75	$34.35	$33.77	10,927,600	-1.76%	open_in_new
Mar 04, 2009	☀ PRE	$28.83	$29.38	$28.62	14,476,000	+0.3%	open_in_new
Dec 11, 2008	☀ PRE	$36.51	$37.36	$36.37	10,660,400	-3.04%	open_in_new
May 29, 2008	☀ PRE	$51.30	$51.94	$50.71	8,817,500	-0.36%	open_in_new
Mar 05, 2008	☀ PRE	$42.76	$43.39	$42.18	13,979,800	-2.5%	open_in_new
Dec 13, 2007	☀ PRE	$45.32	$48.31	$47.41	17,559,600	-2.35%	open_in_new
May 31, 2007	☀ PRE	$38.64	$39.56	$38.88	7,044,100	-0.11%	open_in_new
Mar 08, 2007	☽ POST	$38.10	$38.77	$37.26	12,785,200	+0.15%	open_in_new
Dec 14, 2006	☀ PRE	$37.38	$37.77	$37.07	9,833,100	+1.83%	open_in_new
Aug 30, 2006	☀ PRE	$31.96	$32.80	$32.25	23,977,100	-4.2%	open_in_new
May 31, 2006	☀ PRE	$36.12	$36.53	$36.08	8,559,600	-1.18%	open_in_new
Mar 02, 2006	☀ PRE	$34.86	$36.25	$35.91	6,842,000	+1.17%	open_in_new
Dec 08, 2005	☀ PRE	$32.71	$33.13	$32.77	4,520,000	-2.15%	open_in_new
May 26, 2005	☀ PRE	$31.28	$31.31	$30.72	9,454,200	+0.15%	open_in_new
Mar 02, 2005	☀ PRE	$30.58	$31.02	$30.32	12,766,600	-3.62%	open_in_new

event

Earnings Count

Total earnings in dataset

trending_up

Avg Abs. Movement

±1.94%

Avg % price change on earnings

description

SEC Filings

View

Browse all SEC filings

SEC Filing Types

Recent SEC Filings

10 most recent

Form	Date Filed	View on EDGAR
144	20260605	open_in_new SEC.gov
10-Q	20260603	open_in_new SEC.gov
S-3ASR	20260603	open_in_new SEC.gov
SD	20260529	open_in_new SEC.gov
8-K	20260528	open_in_new SEC.gov
3/A	20260515	open_in_new SEC.gov
SCHEDULE 13G	20260429	open_in_new SEC.gov
8-K	20260415	open_in_new SEC.gov
4	20260401	open_in_new SEC.gov
144	20260401	open_in_new SEC.gov

Frequently asked about COST earnings

When does Costco report earnings next? expand_more

Costco (COST)'s next earnings date is approximate for 2026-09-25. This is a prediction based on its historical quarterly reporting pattern, not a company-confirmed date.

How much does COST stock move after earnings? expand_more

Over 75 reports, COST has moved an average of ±1.94% the session after earnings, closing higher 45.3% of the time.

What was COST's biggest post-earnings move? expand_more

COST's largest post-earnings gain on record was +6.58% on Dec 09, 2021, and its largest decline was -8.59% on Dec 13, 2018.

Where can I find Costco's SEC filings? expand_more

All of Costco's SEC filings — 10-K, 10-Q, 8-K and more — are listed in the SEC filings section on this page, each linking to the original document on SEC.gov.