Costco stock trades below $1,000 as Q3 FY26 growth and valuation draw attention

Costco stock remains in the upper-$900 range as Q3 FY26 revenue climbs double digits, leaving the shares a few percent below consensus targets and raising questions about how much growth is already priced in.

Costco Wholesale (ISIN US22160K1051) stock continues to change hands below the $1,000 mark as of late August 2026, with the latest Q3 FY26 results showing double-digit revenue growth and strong comparable sales while valuation metrics suggest the shares still trade several percent under consensus fair-value estimates.

Q3 FY26 growth stands out

Recent reporting on Costco's Q3 FY26 performance highlights that revenue for the quarter rose 11.58% to $70.53 billion, giving investors a clear view of continued expansion in the warehouse club's top line in the current fiscal year. Comparable sales in Q3 FY26 increased 9.8%, providing a solid confirmation that underlying store activity remains robust rather than relying solely on new club openings.

Digital comparable sales in the same Q3 FY26 period climbed 21.5%, effectively more than double the overall comparable-store growth rate and underscoring how online and app-driven purchasing has become a meaningful growth driver within Costco's membership ecosystem. These Q3 FY26 figures mark Costco as a premium growth name in the discount and warehouse retail segment, especially when compared with peers whose quarter-on-quarter advances have been more muted. One sector overview frames Costco's Q3 FY26 revenue growth and sales mix as the natural comparison point for large general merchandise retailers seeking to defend or expand their own market share.

Stock price and valuation context

Multiple recent market overviews show Costco shares in the upper-$900 bracket, with one late August 2026 snapshot citing a close of $956.20 as of August 27, 2026 on the Nasdaq listing, within an intraday range from $954.54 to $964.45. Another late August 2026 performance view notes Costco stock closing at $956.12 at the previous session, paired with a market capitalization of $424.02 billion based on that price and highlighting a trading volume of roughly 1.22 million shares at the same close.

In addition to those upper-$900 closes, one commentary points out that Costco stock was changing hands around $960.01 in late August 2026 and that this level left the shares just over 4 percent below the consensus price target at that time. For investors, that spread between the roughly $960 trading region and the implied fair-value range serves as a quantified gauge of how much upside analysts still see based on Q3 FY26 momentum and membership trends.

Another data set shows a Costco share price of $934.66 at the latest trading session close, reflecting a one-day move of -2.24% from the prior session. A separate live-price snapshot oriented toward international investors lists the Costco share price at $934.51 as of August 28, 2026 at 1:29 a.m. IST, framing that level as the basis for small-ticket fractional investment and confirming that recent trading has pulled the shares modestly away from the mid-$950s region noted in earlier late-August data.

Across these late August 2026 references, the price landscape for Costco stock therefore ranges from around $934 at one recent close to just over $956 at another, with intraday highs near $964.45 and commentary marking the shares as a large-cap retailer that remains below the round-number psychological threshold of $1,000. The market cap figures clustered around $424 billion invite a discussion about whether a double-digit revenue growth rate and high single-digit comparable sales justify a valuation multiple that places Costco among the most richly valued names in mass-market retail.

Membership model and competitive positioning

The Q3 FY26 data reinforce how Costco's membership-centric business model continues to support both revenue and margin resilience. The 9.8% increase in comparable sales in Q3 FY26, when set beside the 11.58% revenue gain, suggests that core store activity and membership fee income together remain a critical pillar in Costco's financial profile. Digital comp growth of 21.5% in Q3 FY26 indicates that the company is translating its membership value proposition effectively into online and mobile channels, which has become increasingly important as consumer shopping habits shift.

In comparative sector commentary, Costco is singled out as the natural growth benchmark for other large-scale retailers whose Q3 guidance points to lower single-digit operating income growth rates. While some peers guide for operating income growth of 2% to 4% in the upcoming quarter as they reinvest tariff-related refunds into price cuts, Costco's Q3 FY26 revenue expansion of 11.58% and nearly double-digit comparable sales underline a different trajectory, with membership loyalty and scale allowing it to pursue growth without leaning as heavily on promotional activity.

That contrast in growth and guidance has implications for valuation. If a peer is targeting low-single-digit operating income gains while Costco delivers high-single-digit to double-digit comparable sales and revenue growth, the premium price-to-earnings or price-to-sales multiples attached to Costco stock may appear more justifiable to investors seeking predictable growth. At the same time, the fact that Costco shares are characterized as standing just over 4 percent under consensus price targets in late August 2026 indicates that analysts see room for appreciation but do not project outsized gains from current levels.

Product spotlight: Costco Gold Star membership

One representative product that illustrates Costco's business model for US retail investors is the Gold Star membership, the entry-level annual membership that gives shoppers access to Costco warehouses, fuel stations, and online ordering. The Gold Star membership sits at the heart of Costco's economics because recurring membership fees contribute significantly to operating income and help fund the low-price, limited-selection strategy that differentiates Costco from traditional supermarkets and general merchandise chains.

From an investor perspective, the double-digit revenue growth of 11.58% in Q3 FY26 and the 9.8% rise in comparable sales are closely tied to Costco's ability to maintain and expand its membership base. When more households renew or upgrade their memberships from Gold Star to higher tiers, Costco can support investments in logistics, technology, and merchandise curation while retaining a lean cost structure. The 21.5% digital comp growth in Q3 FY26, backed by the membership infrastructure, signals that Gold Star and other membership tiers are not just about in-store access but also about integrating online shopping and delivery options into the value proposition.

Closing view on Costco stock

Based on late August 2026 market data, Costco stock has recently closed between $934.51 and $956.20 on Nasdaq, with intraday highs reaching up to $964.45 and market capitalization readings around $424 billion. The shares therefore trade firmly in the upper-$900 range yet still below the $1,000 threshold that many market participants watch as a psychological level for large-cap growth stocks.

For investors assessing Costco, the combination of Q3 FY26 revenue growth of 11.58%, comparable sales up 9.8%, and digital comp expansion of 21.5%, together with the observation that the shares stood just over 4 percent under consensus price targets in late August 2026, offers a quantified framework for deciding whether the current upper-$900 price band and roughly $424 billion market cap leave sufficient upside relative to Costco's membership-driven growth profile.

Fact box

Company: Costco Wholesale Corp.

ISIN: US22160K1051

Ticker: COST

Exchange: Nasdaq

Price (as of August 27, 2026, 4:00 p.m. ET): $956.20 USD

Market cap: $424.02 billion (as of August 27, 2026)

Sector / Industry: Consumer staples / Warehouse clubs and discount retail

Index membership: S&P 500