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Last update: Sep 10, 2026, 2:23 PM ET
Costco Wholesale Corporation
$901.10 0.17% today
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Why Costco Wholesale Corporation (COST) stock moved

Updated Sep 10, 2026

Costco Wholesale Corporation (COST) shares fell 0.2% to $901.10 as of September 10, 2026, a slight decline from the prior close of $902.60. BestStocks flagged the session as a major change for COST. The move is tied to company news. Below, we break down what changed for COST, why it matters for investors, how the stock reacted, and the catalysts on the calendar.

What happened

Company News

Costco released latest sales update prompting investor attention for September performance. Strong sales momentum signals consumer spending resilience and warehouse demand heading into peak quarter.

This summary describes the catalyst and move as first detected on Sep 7, 2026, 6:07 PM EDT; the stock has continued trading since, so the current price and percentage move (shown above) may be larger or smaller than the figures here.
NewsSector-Wide MoveWeak confidence
Rel. volume
0.5×
Below Avg
Vs peers
Top 6 of 7 peers
Underperforming
Market cap
$399.6B
NASDAQ Global Select
Analyst target
$1102
+22.3% vs price
Price chart
Aug 10 – Sep 10
NNEEEVV$899$936$973Aug 10Aug 18Aug 25Sep 2Sep 10
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details

What it means for Costco Wholesale Corporation investors

For Costco Wholesale Corporation investors, the recent signals add up to a bearish shift. On the constructive side: Positive price momentum; Costco Wholesale Corporation (COST) moved +3.17% from $916.54 to $945.57 on 2026-07-16. Weighing against that: Material negative event; Negative session, down 0.2%. Because peers moved similarly, the shift looks more macro- or sector-driven than a change in COST's fundamentals. Wall Street's consensus price target sits at $1,101.78, implying +22.3% upside from $901.10. Over the past 90 days analysts logged 1 upgrade and 0 downgrades. BestStocks rates the overall signal quality weak (23/100). With earnings roughly 14 days out, the next report is the most likely near-term test of the move.

COST price reaction

COST last traded at $901.10, down $1.50 (-0.17%) from the previous close of $902.60. The session traded on 0.5× average volume (below avg), so participation was unremarkable. Its consumer defensive peer group moved a median +0.2% over the same stretch, leaving COST essentially in line with peers. Over the past month the stock has ranged between $901.10 and $971.40, and it currently sits about 0% of the way up that band.

Bullish and bearish analyst opinions on Costco Wholesale Corporation (COST)

The consensus analyst price target on Costco Wholesale Corporation (COST) is $1,101.78, 22.3% above the recent $901.10. Over the past 90 days analysts logged 1 upgrade, 3 maintains, and 0 downgrades. Here is how the bullish and bearish cases on COST line up.

The bullish case

  • Wall Street's consensus price target of $1,101.78 implies +22.3% upside from $901.10.
  • The Street's most bullish target is $1,275.00 (+41.5%).
  • 1 analyst upgrade in the past 90 days, most recently Freedom Broker to Buy (2026-09-08).
  • Positive price momentum.
  • Costco Wholesale Corporation (COST) moved +3.17% from $916.54 to $945.57 on 2026-07-16.

The bearish case

  • Material negative event.
  • Negative session, down 0.2%.
  • Costco declined 0.98% to $926.26 in intraday trading.
Bull vs bear balanceBearish Shift
BearishNeutralBullish

Weighing both sides, BestStocks' composite read of recent signals is bearish, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.

Analyst price targets and ratings are FMP consensus figures as of Sep 10, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.

Analyst expectations
Consensus target: $1102+22.3%
1 upgrades= 3 maintains
Freedom Broker upgraded to Buy · 2026-09-08
SEC filings watch
8-K2026-07-08
Material event — review for impact
high
10-Q2026-06-03
Quarterly financial results
medium
8-K2026-05-28
Material event — review for impact
high
Peer context
COST-0.2%
WMT+0.1%
PG+0.2%
KO+0.7%
PEP+0.2%
MCD-0.1%

Previous notable changes for COST

Material / Earnings2026-09-09-0.8%
Costco Wholesale Corporation (COST) moved -0.49% from $907.00 to $902.60 on 2026-09-09, reaching a new 30-day low. We checked news, earnings, analyst updates, filings, and corporate actions — no company-specific catalyst was found. The decline appears to be part of a sector-wide move, with three consumer discretionary peers (PG, SBUX, NKE) falling 1.93–2.02% the same day; volume remained near its 5-day average.
Material / Earnings2026-09-08-0.6%
Costco Wholesale Corporation (COST) moved -0.24% from $912.40 to $910.18 on 2026-09-08, reaching a new 30-day low. The company released a sales update highlighting Q4 net sales growth of 11.3% to $93.9B and digital comparable sales surging 19.5%, prompting investor attention.
Material / Earnings2026-09-04-1.0%
Costco Wholesale Corporation (COST) moved -1.12% from $926.09 to $915.74 on 2026-09-04. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The decline appears to reflect a sector-wide move: Starbucks (SBUX) fell 2.11%, McDonald's (MCD) fell 2.02%, and PepsiCo (PEP) fell 2.06% on the same day. COST reached a new 30-day low on normal volume.
Valuation2026-09-02-1.2%via Yahoo Finance
Costco shares fell 2.05% to $920.67 amid sector-wide weakness in discount retail and heightened valuation scrutiny ahead of fiscal Q4 earnings. A broader earnings wave from peers like Dollar Tree and Burlington dampened sentiment in consumer staples, while investors reassess Costco's roughly 48x P/E multiple with limited margin for error. Volume traded at 0.89x typical pace for this time of session.
Upcoming catalysts & outlook
Next earnings
2026-09-24 (est.)
in 14 days
Thesis shift
Bearish Shift
bearish signal
Risk level
Medium
from change events

Frequently asked questions about COST

Why did Costco Wholesale Corporation (COST) stock move?

COST fell 0.2% to $901.10. The move coincided with the context summarized above, which BestStocks classifies as a sector-wide move, though no single company-specific catalyst was independently confirmed.

How much did COST stock fall?

COST lost 0.17% ($1.50) versus the prior close of $902.60, last trading at $901.10 on 0.5× average volume.

When is Costco Wholesale Corporation's next earnings date?

COST's next earnings report is estimated for 2026-09-24 — about 14 days away.

What is the analyst price target for COST?

The consensus analyst price target for COST is $1,101.78, about 22.3% above the current $901.10. Over the past 90 days, analysts recorded 1 upgrade, 3 maintains, and 0 downgrades.

Is the COST move company-specific or sector-wide?

BestStocks classifies it as a sector-wide move: the peer group moved a median +0.2% against COST's -0.2%. COST ranks top 6 of 7 peers.

How BestStocks tracks COST

This page is generated automatically by BestStocks' change-detection system after company news was detected and verified against independent data sources. It draws on 20 tracked change events for COST, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of September 10, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.

Data sources
FMP real-time & historical price dataSEC EDGAR filingsAnalyst ratings & price targets (FMP)Earnings calendar (FMP)
Educational research tool — not personalized investment advice. Data may be delayed.