Costco stock dips as investors turn cautious ahead of upcoming earnings

Costco Wholesale Corporation (COST) is down 3.0% today. Here is some analysis on what might have caused this price movement.

Analysis: The move looks most consistent with pre-earnings de-risking and valuation pressure rather than a single, company-specific shock. With results due later this week, investors may be trimming exposure after a strong run and resetting expectations for margins and membership trends.

Details:

Costco’s fiscal Q3 2026 earnings event is scheduled for May 28, 2026, putting the stock in a “wait-for-results” window where positioning can swing quickly.

A recent monthly sales update showed solid comparable-sales and e-commerce momentum, which can raise the bar for the upcoming quarter and make any guidance nuance matter more.

Costco typically trades at a premium to many large retailers, and the shares can be sensitive to even small shifts in sentiment around growth durability and operating leverage.

This could also be partially driven by broader market rotation out of defensive consumer names into higher-beta areas ahead of multiple major retail/consumer earnings this week.

Sources:

Costco Investor Relations, Wall Street Horizon, Stock Analysis, Zacks

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$COST Insider Trading Activity

$COST insiders have traded $COST stock on the open market 7 times in the past 6 months. Of those trades, 0 have been purchases and 7 have been sales.

Here’s a breakdown of recent trading of $COST stock by insiders over the last 6 months:

JAVIER POLIT (Executive Vice President) has made 0 purchases and 2 sales selling 2,607 shares for an estimated $2,258,662.
JAMES C KLAUER (Executive Vice President) sold 1,500 shares for an estimated $1,408,500
RUSSELL D MILLER (Sr. Executive Vice President) sold 1,500 shares for an estimated $1,374,480
TERESA A. JONES (Executive Vice President) sold 850 shares for an estimated $838,318
CATON FRATES (Executive Vice President) sold 700 shares for an estimated $695,100
SUSAN L DECKER sold 458 shares for an estimated $437,390

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

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$COST Hedge Fund Activity

We have seen 1,999 institutional investors add shares of $COST stock to their portfolio, and 1,872 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

DIAMANT ASSET MANAGEMENT, INC. added 6,720,130 shares (+99278.0%) to their portfolio in Q1 2026, for an estimated $6,676,717,960
CORIENT PRIVATE WEALTH LLC removed 5,366,419 shares (-87.6%) from their portfolio in Q1 2026, for an estimated $5,331,751,933
CAPITAL INTERNATIONAL INVESTORS added 2,109,174 shares (+329.4%) to their portfolio in Q1 2026, for an estimated $2,095,548,735
CAPITAL WORLD INVESTORS removed 1,903,121 shares (-48.3%) from their portfolio in Q1 2026, for an estimated $1,890,826,838
CARDANO RISK MANAGEMENT B.V. removed 1,597,837 shares (-89.5%) from their portfolio in Q1 2026, for an estimated $1,587,514,972
ROCKEFELLER CAPITAL MANAGEMENT L.P. removed 1,488,403 shares (-77.8%) from their portfolio in Q1 2026, for an estimated $1,478,787,916
VESTOR CAPITAL, LLC removed 969,823 shares (-99.9%) from their portfolio in Q1 2026, for an estimated $963,557,943

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$COST Congressional Stock Trading

Members of Congress have traded $COST stock 3 times in the past 6 months. Of those trades, 2 have been purchases and 1 have been sales.

Here’s a breakdown of recent trading of $COST stock by members of Congress over the last 6 months:

REPRESENTATIVE GILBERT RAY CISNEROS, JR. has traded it 2 times. They made 1 purchase worth up to $15,000 on 01/30 and 1 sale worth up to $15,000 on 12/24.
SENATOR MARKWAYNE MULLIN purchased up to $50,000 on 12/29.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard. You can access data on congressional stock trades through the Quiver Quantitative API Congress trades endpoint.

$COST Analyst Ratings

Wall Street analysts have issued reports on $COST in the last several months. We have seen 4 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

BTIG issued a "Buy" rating on 03/05/2026
Telsey Advisory Group issued a "Outperform" rating on 01/08/2026
Bernstein issued a "Outperform" rating on 12/12/2025
Baird issued a "Outperform" rating on 12/12/2025

To track analyst ratings and price targets for $COST, check out Quiver Quantitative's $COST forecast page.

$COST Price Targets

Multiple analysts have issued price targets for $COST recently. We have seen 16 analysts offer price targets for $COST in the last 6 months, with a median target of $1082.5.

Here are some recent targets:

Michael Lasser from UBS set a target price of $1275.0 on 05/20/2026
Rupesh Parikh from Oppenheimer set a target price of $1160.0 on 05/19/2026
Michael Baker from DA Davidson set a target price of $1000.0 on 04/10/2026
Edward Kelly from Wells Fargo set a target price of $1000.0 on 04/09/2026
Joseph Feldman from Telsey Advisory Group set a target price of $1135.0 on 04/09/2026
Robert Drbul from BTIG set a target price of $1125.0 on 03/06/2026
Scot Ciccarelli from Truist Securities set a target price of $977.0 on 03/06/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.