Costco Wholesale Corporation
COST · Nasdaq
COST · Nasdaq
Costco operates membership-based warehouse stores, selling merchandise and related services to consumers and businesses. It makes money primarily from product sales and recurring membership fees, although the supplied evidence does not quantify the contribution of each stream or separate operating segments. Its customer base consists of members shopping for household, grocery, discretionary and business-use goods. The latest supplied financial figures report $275.2 billion of revenue and $8.1 billion of net income for FY2025; a second line also labels $254.5 billion of revenue and $7.4 billion of net income as FY2025, creating an unresolved period-label inconsistency.
Costco rose 0.35%, from $915.74 to $918.91 over the stated week. The move was dominated by a sharp rebound on September 14, when shares gained $14.14 from the prior close of $904.77 after falling from $915.74 on September 4 to $902.38 on September 10. No company-specific operating announcement in the supplied evidence explains the rebound. Broader market conditions were mixed: reports described stocks and bonds dipping as central banks raised rates, followed by a U.S. rally as oil prices and Treasury yields eased. Bank of America and JPMorgan subsequently lowered Costco targets, but the supplied closing data do not show a material reversal after those revisions.
Costco shares fell $33.71, or 3.57%, over the week, from $943.89 to $910.18. The decline was steady rather than reversal-driven: the stock slipped on each reported session, including losses of $3.93 on September 1, $11.48 on September 2, $3.07 on September 3, $9.67 on September 4 and $5.56 on September 8. The supplied evidence identifies no Costco earnings release, guidance change or other company-specific catalyst tied to those sessions. The broader backdrop was dominated by inflation data and expectations for a Federal Reserve rate hike, with financial coverage describing rate-sensitive market volatility despite some index gains. Costco-specific articles discussed Scottsdale approval, analyst views and valuation, but provide no dated trading catalyst.
Costco shares fell 0.99%, from $934.66 on August 27 to $925.41 on September 3. The stock initially rose 1.16% to $945.47 on August 28, then reversed lower, declining in each session from August 31 through September 3 and giving back all of the prior gain. The main identifiable driver was macroeconomic: a surprisingly strong U.S. jobs report lifted Treasury yields and increased expectations for an interest-rate hike, pressuring major U.S. stock indexes and rate-sensitive valuations. No Costco-specific earnings release, guidance change, contract, or management announcement appears in the supplied evidence, so the late-week decline is best explained by broader market repricing rather than new company information.
Costco shares gained $1.15, or 0.12%, over the week, rising from $933.51 to $934.66. The stock entered the period with a sharp advance, closing at $971.40 on Monday, but then reversed lower for three consecutive sessions and gave back nearly all of that gain. Tuesday’s close fell to $960.01, Wednesday’s to $956.12, and Thursday’s to $934.66, a 2.24% drop that Zacks noted occurred despite broader market gains. The supplied evidence identifies no company-specific earnings release, guidance change, contract, or executive announcement to explain the reversal. Trading therefore appears to have reflected profit-taking or market positioning rather than a documented Costco catalyst, with Thursday’s heavier volume accompanying the decline.
Costco fell 2.95% over the cited week, from $961.85 to $933.51. The decline was concentrated on Thursday, when shares dropped 2.45% to $933.51 on volume of 2.50 million, after modest weakness on Monday and Wednesday. The stock briefly reversed higher on Tuesday, gaining 0.82% to $961.35, but that rebound did not hold. Zacks reported that Costco underperformed the broader market in the latest session, although the supplied evidence identifies no company-specific announcement, earnings release, or guidance change explaining the move. The most supportable explanation is relative weakness during a broader market decline, with Thursday’s heavier volume marking the week’s decisive selling pressure.
Costco shares fell 0.14% over the week, from $954.08 to $952.75. The stock declined for two sessions, reaching $941.99 on Wednesday, before recovering to $949.15 on Thursday and ending Friday at $947.82; it then rose to $952.75 on Monday. No supplied evidence identifies material Costco-specific operating news, earnings news, or guidance during the period. Trading instead occurred against a mixed macro backdrop: Reuters reported that rate-hike expectations eased and the S&P 500 reached a record close, while MarketWatch highlighted multiyear-high bond yields and the risk that elevated rates could pressure equities. Costco’s modest rebound came despite that rate-sensitive tension, leaving the stock essentially flat after a midweek pullback.
Costco fell $18.73, or 1.94%, from $966.58 to $947.85 over the reported week. The stock initially advanced 0.77% to $974.03 on July 29, then reversed sharply, dropping to $954.17 on July 30 and slipping again on July 31. It briefly recovered to $954.08 on August 3 before giving back that gain and closing at the period low on August 4, when volume rose to 2.44 million shares. The supplied evidence identifies no Costco-specific earnings release, guidance change, contract, or executive action explaining the decline. Trading therefore appears to have reflected broader market positioning, including a technology- and retail-heavy tape around Amazon's earnings, rather than a disclosed company catalyst.
