COST Shares Outstanding History
Below is a table of the COST shares outstanding history going back to 3/5/2010:

Date COST Shares Outstanding
3/5/2010440.51M
5/28/2010439.13M
10/1/2010432.33M
12/10/2010436.52M
3/4/2011436.86M
5/27/2011437.81M
9/30/2011433.37M
12/9/2011434.93M
3/9/2012433.97M
5/31/2012432.34M
10/5/2012432.42M
12/14/2012435.64M
3/13/2013436.37M
6/4/2013436.68M
10/9/2013436.92M
12/13/2013439.72M
3/7/2014439.88M
5/28/2014438.30M
10/8/2014437.76M
12/11/2014440.50M
3/4/2015439.97M
5/27/2015439.49M
10/5/2015437.41M
12/10/2015439.78M
3/2/2016439.04M
5/25/2016438.07M
10/4/2016437.13M
12/8/2016439.24M
3/1/2017438.94M
5/24/2017438.59M
10/10/2017436.99M
12/13/2017439.11M
3/7/2018438.82M
5/30/2018438.54M
10/18/2018438.21M
12/12/2018440.49M
3/6/2019439.88M
5/29/2019439.79M

Also see: COST Market Cap History
and COST YTD Return
COST Historical Shares Outstanding:
-0.02% CAGR
COST Historical Shares Outstanding: +-0.02% CAGR

Mouse over chart for data details
3/5/2010 ...5/29/2019
Costco Wholesale operates membership warehouses based on the concept of providing its members low prices on a selection of nationally branded and private-label products in a range of merchandise categories. Co.'s provides merchandise in the following categories: foods, including dry foods, packaged foods, and groceries; sundries, including snack foods, candy, alcoholic and nonalcoholic beverages, and cleaning supplies; hardlines, including appliances, electronics, health and beauty aids, hardware, and garden and patio; fresh foods, including meat, produce, deli, and bakery; softlines, including apparel and small appliances; as well as ancillary, including gas stations and pharmacy. We show 38 historical shares outstanding datapoints in our coverage of COST's shares outstanding history.

Understanding the changing numbers of COST shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like COST versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching COST by allowing them to research COST shares outstanding history as well as any other stock in our coverage universe.
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Costco Wholesale (COST) is categorized under the Services sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:

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