Is Costco (COST) a Buy Right Now?
A plain-English read on Costco stock — what the chart and the numbers are saying today, with no jargon and no hype.
What this means, in plain English
Costco is currently trading at $910.18, representing a recent decline of 0.61%. The stock is trending lower, as it sits below its 200-day average of $961.91. This average is a common benchmark used to determine the long-term direction of a stock price.
The RSI, or Relative Strength Index—a gauge of whether a stock has climbed too far or fallen too fast—is at 34.1. While this is not yet in extreme territory, the downward momentum and the current price proximity to the $906.1 support, or floor, warrant careful observation.
Should you buy Costco stock?
Deciding to buy depends on your personal risk tolerance, but the current downward trend suggests patience may be wise. With the stock trading near its floor of $906.1, it is prudent to wait for signs of stability before making any decisions.
Is COST a good stock for beginners?
Costco is a massive company, but its high P/E ratio of 46.1—a measure of the price relative to earnings—indicates it is not a cheap stock. Beginners should be aware that even large, stable companies experience volatility, or price swings, that can be unsettling.
What's driving COST right now
The stock is currently trading below its 200-day average of $961.91.
The price is hovering near the $906.1 support level, which acts as a historical floor for the stock.
A P/E ratio of 46.1 suggests that investors are paying a premium for each dollar of earnings.
The RSI of 34.1 shows the stock is under selling pressure as it approaches the low end of its 52-week range.
What Costco actually does
Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, Mexico, Japan, the United Kingdom, Korea, Australia, Taiwan, China, Spain, France, Iceland, New Zealand, and Sweden. It offers merchandise, including sundries, dry groceries, candies, coolers, freezers, deli, liquor, and tobacco; non-food merchandise comprising appliances, small electronics, health and beauty aids, hardware, lawn and garden, sporting goods, tires, toys and seasonal, automotive, stamps, tickets, apparel, furniture, domestics, housewares, special order kiosks, and jewelry; and fresh food, such as meat, produce, service deli, and bakery products. The company is also involved in warehouse ancillary operations, which include gasoline, pharmacies, optical, food courts, hearing-aid centers, and tire installation centers. In addition, it engages in e-commerce, business centers, travel, and other businesses. The company was formerly known as Costco Companies, Inc. and changed its name to Costco Wholesale Corporation in August 1999. Costco Wholesale Corporation was founded in 1976 and is based in Issaquah, Washington.
Costco by the numbers
Wall Street consensus on COST is Buy. That is the analyst community's view, shown for context — it is not our read and not a recommendation.
Who owns Costco?
Institutions — pension funds, asset managers, index providers — hold 74.5% of COST, and the concentration matters: the largest single holder alone controls 7.71% of the company.
| Holder | Shares | % held |
|---|---|---|
| 34.20M | 7.71% | |
| 28.98M | 6.53% | |
| 18.38M | 4.15% |
Names withheld — plus 3 more records not shown.
See who owns itWhat Costco insiders have been doing
Executives and directors must disclose their own trades in company stock. Of the last 6 disclosed transactions we hold for Costco, 3 were sales and 0 were open-market purchases; the other 3 were awards, vesting or option exercises rather than a decision to buy or sell. Insiders sell for many ordinary reasons — scheduled plans, tax, diversification — so a sale is not by itself a signal.
| Insider | Date | Type | Shares | Value |
|---|---|---|---|---|
| 2026-07-10 | AWARD / VEST | 5.2K | — | |
| 2026-06-23 | SELL | 885 | $847.3K | |
| 2026-04-01 | SELL | 700 | $695.1K |
Names withheld — plus 3 more records not shown.
See which insidersThe numbers behind the read
Who in Washington has been trading COST?
Members of Congress must disclose trades over $1,000 within 45 days under the STOCK Act. At least 25 disclosures name COST — filed by 13 separate members or more and worth $151K–$615K combined (filings report bands, never exact amounts). 14 purchase-side, 11 sale-side, most recently on 2026-07-30.
| Member | Date | Action | Amount filed |
|---|---|---|---|
| 2026-07-30 | SELL | $1,001 - $15,000 | |
| 2026-07-10 | BUY | $1,001 - $15,000 | |
| 2026-01-30 | BUY | $1,001 - $15,000 |
Names withheld — plus 22 more records not shown.
See which membersWith the stock trending below its long-term averages, it is best to be careful and avoid rushing into a position.
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Beginner questions about COST
Should I buy COST stock?+
The stock is currently trending downward and sits below its 200-day average of $961.91, so it is wise to be careful.
Is COST a good long-term investment?+
While it is a large company, the current P/E ratio of 46.1 is quite high, which requires careful consideration of the price you pay.
Is COST a buy or a sell?+
The price is currently near the $906.1 support level, and the negative trend suggests it is a time to be cautious rather than aggressive.
Is COST overvalued?+
With a P/E ratio of 46.1, the stock is priced at a significant multiple of its earnings, which is a factor to weigh against its current $910.18 price.
Is COST a good stock for beginners?+
Beginners should note that the stock is currently in a downward trend and has seen price movement between $844.06 and $1096.5 over the last year.
Important disclaimer
This page is for educational and informational purposes only and is not financial, investment, tax, or legal advice, nor a recommendation, offer, or solicitation to buy, sell, or hold Costco (COST) or any other security. The Money GPS is not a registered investment adviser, broker-dealer, or financial planner, and no content here should be relied upon to make an investment decision.
The verdict, indicators, and commentary are generated automatically — in part using AI — from third-party market data (via Yahoo Finance) that may be delayed, incomplete, or inaccurate, and is provided “as is” without any warranty. Figures reflect the market as of 2026-09-08 and change constantly; the read above may already be out of date. A “Buy,” “Hold,” or “Be Careful” label is a simplified, rules-based signal for beginners — not a price target or a guarantee of any outcome.
All investing involves risk, including the possible loss of your entire principal. Past performance and historical patterns do not guarantee future results. Always do your own research and consult a licensed financial professional who knows your personal circumstances before investing. You are solely responsible for your own investment decisions. The Money GPS and its authors may hold positions in the securities discussed and accept no liability for any loss arising from the use of this information.