Last refreshed: July 21, 2026 (US ET)
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COST

Defensive

COSTCO WHOLESALE CORP

Consumer Staples·Consumer Staples Merchandise RetailYield: Low (<1%)

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.

Close · 3M

-6.91%

COST · 3M

-6.91%

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Held by 3 AI ETFs

QRFT0.900%

as of Jul 8

PQUS0.820%

as of Jul 21

AIEQ0.180%

as of Jul 20

Signal performance

Each tracked ETF's moves on this stock, grouped by fund. Returns are measured from the signal date to the latest close — hypothetical, no commissions or slippage.

Buy signals9
Win rate0% (0/9)
Avg buy return-6.89%
QRFTnow 0.900% of fund10 signals

QRFT · Weight decrease · 2d

Currently at $935.47, COST trades at 85% of its 52-week high, having delivered a -13.1% return over the last 30 days and a -4.3% return over the past year. This downward price momentum, positioning the stock toward the lower end of its recent range, likely influenced Qraft AI’s weekly rebalance within QRFT. The fund’s methodology, integrating momentum factors with traditional value, quality, and low-vol, appears to be responding to this recent depreciation as the stock has retreated. COST’s valuation, with a 48.06 PER and 14.34 PBR, contrasts with its 9.23% revenue growth and 28.27% ROE. The consecutive weight decrease, from 0.90% to 0.88% observed on June 29-30, suggests the AI’s proprietary alternative data overlays or its momentum signals initiated a tactical reduction, potentially overriding fundamental strength in light of current market trajectory.

weight 0.920% → 0.880% (-0.040 pp)·stock down 2.2% in the 30 days before

Jun 30·entry $935.47·now $935.80

+0.04%
since Jun 30

QRFT · Weight decrease · 2d

Costco's shares currently trade at $951.45, positioning the stock at 87% of its 52-week high, following recent pullbacks of -6.0% over 30 days and -6.3% over the past year. This negative short-to-medium term price trajectory, combined with its valuation ratios of PER 47.74 and PBR 14.34, likely triggered negative signals within Qraft AI's momentum and value factor overlays. Consequently, the Qraft AI model, which integrates these traditional factors with proprietary alternative data for its broad large-cap core portfolio, initiated a measured adjustment. This algorithmic re-evaluation led to the observed consecutive weight decrease for COST in QRFT, moving from 0.9300% to 0.8900% in the fund between June 17 and June 18. The AI's weekly rebalancing and focus on identifying shifts across hundreds of US large caps meant that even a consumer staples giant like COST, despite its 9.23% revenue growth and 28.27% ROE, saw its allocation slightly trimmed as its market sentiment softened from peak levels.

weight 0.930% → 0.890% (-0.040 pp)·stock down 13.1% in the 30 days before

Jun 18·entry $951.45·now $935.80

-1.64%
since Jun 18

QRFT · Weight increase · 2d

weight 0.860% → 0.900% (+0.040 pp)·stock down 5.0% in the 30 days before

Jun 3·entry $961.83·now $935.80Fresh

-2.71%
since Jun 3

QRFT · Weight decrease · 3d

The pattern of consecutive daily weight reduction for COST in the QRFT portfolio, decreasing from 0.9900% to 0.8600% over a span of two weeks, indicates a measured and persistent deleveraging by the fund’s AI. This gradual reduction, occurring while COST trades at $946.11—86% of its 52-week high and with negative returns across 30-day, 90-day, and 1-year periods—aligns with QRFT’s AI balancing traditional factors like value and momentum. Given COST's elevated PER of 47.53 and PBR of 14.34, even with its 9.23% revenue growth and 28.27% ROE, the AI system managing this broad large-cap core fund may be paring exposure due to valuation concerns or decelerating momentum signals, informed by its proprietary alternative-data overlays. The continuous nature of these adjustments in a fund designed for weekly rebalancing with an AI tilt, which is QRFT's most diversified offering, suggests a systematic response to a perceived shift in the risk-reward profile for this Consumer Staples company.

weight 0.910% → 0.860% (-0.050 pp)·stock down 6.7% in the 30 days before

Jun 1·entry $946.11·now $935.80

-1.09%
since Jun 1

QRFT · Weight decrease · 2d

COST's current price of $956.32 positions it at 87% of its 52-week high, following recent negative returns of -4.4% over 30 days and -6.8% over the past year. The Qraft AI, which incorporates traditional factors like momentum and value alongside proprietary alternative data for its weekly rebalances, likely identified this sustained decline in short-term price performance. Despite the company's 9.23% revenue growth and 28.27% return on equity, the AI's algorithm may have flagged the stock's PER of 47.54 and PBR of 14.34 as elevated given the weakening price momentum. Consequently, QRFT’s broad large-cap core strategy adjusted its allocation, leading to the consecutive weight decrease for COST from 1.0300% to 0.8700% as observed across the rebalancing period.

weight 0.910% → 0.870% (-0.040 pp)·stock down 4.2% in the 30 days before

May 29·entry $956.32·now $935.80

-2.15%
since May 29

QRFT · Weight decrease · 4d

The portfolio weight for COST in QRFT shows a consistent, daily reduction from 1.03% on May 19th to 0.91% by May 26th. This gradual divestment aligns with Qraft AI's methodology, which incorporates traditional factors like value alongside proprietary alternative-data overlays. As COST’s price currently sits at $1002.93, 92% of its 52-week high, with a high PER of 52.35 and PBR of 14.34, the system appears to be incrementally de-risking exposure. Despite the company’s 28.81% ROE and recent short-term price increases, the sustained weight decrease suggests the AI identifies a less favorable risk/reward proposition considering the overall valuation and a modest 0.8% return over the past year.

weight 1.030% → 0.910% (-0.120 pp)·stock down 0.8% in the 30 days before

May 26·entry $1002.93·now $935.80

-6.69%
since May 26

QRFT · Weight decrease · 3d

stock up 1.4% in the 30 days before

May 22·entry $1028.24·now $935.80

-8.99%
since May 22

QRFT · Weight decrease · 2d

stock up 4.7% in the 30 days before

May 21·entry $1050.45·now $935.80

-10.91%
since May 21

QRFT · Weight increase · 3d

stock up 9.7% in the 30 days before

May 19·entry $1094.32·now $935.80Fresh

-14.49%
since May 19

QRFT · Weight increase · 2d

stock up 7.7% in the 30 days before

May 18·entry $1076.47·now $935.80Fresh

-13.07%
since May 18
PQUSnow 0.820% of fund10 signals

PQUS · Weight increase · 2d

The consecutive weight increase observed in Costco Wholesale Corp. within the PQUS portfolio, rising from 0.79% to 0.82% over a two-day span, indicates a specific decision by Pictet Asset Management's AI ranking system. This stepped adjustment likely capitalizes on COST's current price of $940.87, which sits at 86% of its 52-week high and follows recent periods of negative returns across 30, 90, and 365 days, aligning with the ETF's US large-cap style. The AI's valuation may prioritize the company's 9.23% revenue growth and 28.27% return on equity, despite its 47.21 PER, identifying a quality holding at a favorable entry point, while adhering to the fund’s sector-balance and concentration rules. Such a deliberate, rather than daily, adjustment underscores the fund's periodic rebalancing approach for its approximately 165 US large caps.

weight 0.690% → 0.820% (+0.130 pp)·stock down 4.6% in the 30 days before

Jul 18·entry $935.80·now $935.80Fresh

0.00%
since Jul 18

PQUS · Weight decrease · 2d

The AI-managed PQUS exhibits a distinct, stepped reduction in its Costco Wholesale (COST) weight, decreasing from 0.71% to 0.66% over an eight-day period, punctuated by plateaus. This gradual divestment, rather than an abrupt sell-off, is consistent with Pictet's AI ranking system and its layered sector-balance and concentration rules, particularly as the stock has experienced a 15.5% decline over the past 30 days and currently trades near 84% of its 52-week high. The AI's re-evaluation likely factors in COST's sustained price depreciation alongside its valuation multiples—a PER of 46.57 and PBR of 14.34—despite the company's 9.23% revenue growth and 28.27% ROE. Such a measured adjustment reflects PQUS's stated style of US large-cap exposure with measured turnover and periodic, not daily, rebalances, indicating a deliberate, systematic response to evolving market conditions for this particular holding.

weight 0.700% → 0.660% (-0.040 pp)·stock down 0.3% in the 30 days before

Jul 2·entry $951.67·now $935.80

-1.67%
since Jul 2

PQUS · Weight increase · 2d

weight 0.690% → 0.720% (+0.030 pp)·stock down 2.4% in the 30 days before

Jun 7·entry $974.75·now $935.80Fresh

-4.00%
since Jun 7

PQUS · Weight decrease · 4d

COST currently trades at $956.32, positioning itself at 87% of its 52-week high of $1094.32, following recent 30-day, 90-day, and 1-year returns all registering declines. This market performance, alongside a PER of 48.01 and PBR of 14.34, could indicate to Pictet Asset Management's AI ranking system that its valuation may be stretched, even with a 9.23% revenue growth and 28.27% return on equity. Consequently, the AI's re-evaluation within its US large-cap universe prompted a consecutive reduction in COST's weight within PQUS, from 0.7500% to 0.6900%, between May 28th and May 31st, 2026. This adjustment reflects the fund's periodic rebalancing and measured turnover style, where the system's updated assessment led to the specific divestment at current price levels rather than a daily reaction.

weight 0.770% → 0.690% (-0.080 pp)·stock down 4.2% in the 30 days before

May 31·entry $946.11·now $935.80

-1.09%
since May 31

PQUS · Weight decrease · 3d

Pictet Asset Management's AI ranking system for PQUS appears to be systematically reducing its allocation to COST, a measured approach consistent with the fund's periodic rebalancing and strategy for its roughly 165 US large-cap holdings. The consistent weight decrease from 0.7900% to 0.7200% over a week suggests the AI is reacting to the stock's recent market behavior, evidenced by a -4.4% 30-day return. At the current price of $956.32, the AI's decision to trim exposure in the consumer staples company likely considers its elevated PER of 48.01, even as it maintains a respectable 9.23% revenue growth. This calibrated adjustment within the large-cap universe reflects the AI's ongoing evaluation of perceived value, aligning with the fund's measured turnover.

weight 0.770% → 0.720% (-0.050 pp)·stock down 4.2% in the 30 days before

May 30·entry $946.11·now $935.80

-1.09%
since May 30

PQUS · Weight decrease · 2d

PQUS has shown a stepped reduction in its COST holding, decreasing from 0.8100% to 0.7300% over several days with intermittent pauses, each decrement typically being 0.02%. This gradual divestment aligns with Pictet Asset Management's strategy for PQUS, which employs periodic rebalances and measured turnover rather than daily adjustments, suggesting a deliberate recalibration of exposure. With COST trading at $995.20, near 91% of its 52-week high despite a 1-year return of -1.1%, the AI ranking system within PQUS likely identified a less favorable risk-reward profile or a relative overvaluation for the consumer staples company compared to other US large-cap opportunities. The AI's decision to trim weight, even as COST's revenue growth reached 9.23% and ROE was 28.27%, indicates its sector-balance and concentration rules, coupled with the stock's PER of 48.04 and PBR of 14.34, may have prompted a reduction to maintain portfolio equilibrium or reallocate capital.

weight 0.770% → 0.730% (-0.040 pp)·stock down 4.2% in the 30 days before

May 29·entry $956.32·now $935.80

-2.15%
since May 29

PQUS · Weight decrease · 3d

stock up 1.4% in the 30 days before

May 24·entry $1002.93·now $935.80

-6.69%
since May 24

PQUS · Weight decrease · 2d

stock up 1.4% in the 30 days before

May 23·entry $1002.93·now $935.80

-6.69%
since May 23

PQUS · Weight increase · 2d

stock up 4.7% in the 30 days before

May 21·entry $1050.45·now $935.80Fresh

-10.91%
since May 21

PQUS · Weight increase · 2d

stock up 6.3% in the 30 days before

May 17·entry $1076.47·now $935.80Fresh

-13.07%
since May 17
AIEQnow 0.180% of fund3 signals

AIEQ · Weight decrease · 2d

The stock is currently trading at $924.67, significantly off its 52-week high, experiencing a 15.5% decline over the last 30 days and negative returns over longer periods. AIEQ's daily rebalancing mechanism, driven by its IBM Watson NLP engine, likely identified a material shift in sentiment from the vast influx of real-time news, filings, and social posts. Despite COST's 9.23% revenue growth and 28.27% ROE, its valuation metrics, including a PER of 46.57 and PBR of 14.34, could make it susceptible to negative shifts in the market's perception. The sharp reduction from 1.0000% to 0.1800% on July 1st, following prior minor weight decreases, suggests EquBot's risk overlay rapidly adjusted the position as the negative momentum intensified. This immediate response reflects AIEQ's hybrid strategy, which prioritizes timely adjustments based on both fundamental data and dynamically evolving market sentiment.

weight 1.010% → 0.180% (-0.830 pp)·stock down 2.3% in the 30 days before

Jul 1·entry $924.67·now $935.80

+1.20%
since Jul 1

AIEQ · Weight decrease · 2d

COST is presently trading at $951.45, positioning it at 87% of its 52-week high, despite posting negative returns of -6.0% over 30 days and -6.3% over the past year. AIEQ’s manager, EquBot, leverages IBM Watson NLP to process daily streams of news, filings, and social posts, generating a dynamic ranking for its 140-180 stock portfolio. The observed consecutive weight reduction, from 1.0600% to 0.9900% between June 11th and June 21st, indicates that Watson’s analysis of sentiment and fundamental signals for COST has consistently declined. Considering COST's PER of 47.74 and PBR of 14.34, even with a 9.23% revenue growth and 28.27% ROE, the fund's risk overlay has systematically reduced exposure, reflecting an ongoing re-evaluation by the AI system at these price levels. This continuous daily rebalancing allows the ETF to incrementally adjust positions as new information is processed, rather than reacting to a single catalyst.

weight 1.030% → 0.990% (-0.040 pp)·stock down 13.1% in the 30 days before

Jun 21·entry $951.35·now $935.80

-1.63%
since Jun 21

AIEQ · New entry · 1d

COST’s entry into AIEQ at a 0.9900% weight follows a period where the stock, currently at $956.32, has returned negatively over the last month (-4.4%) and year (-6.8%), positioning it at 87% of its 52-week high. The IBM Watson NLP engine, known for its daily ingestion of diverse data sources from news to social posts, likely detected a material shift in sentiment or updated fundamental signals for Costco, despite its historically higher valuation multiples (PER 48.01, PBR 14.34). This high-turnover fund, guided by a broad market and sentiment-plus-fundamentals hybrid approach, then translated that analysis into a significant new position, moving from 0.0000% to almost one percent in a single rebalance. The system’s ability to swiftly process new information and integrate it with underlying financials such as 9.23% revenue growth and a 28.27% return on equity suggests the AI identified a compelling entry point following the recent price dip.

weight 0 → 0.990% (new)·stock down 4.2% in the 30 days before

May 30·entry $946.11·now $935.80Fresh

-1.09%
since May 30
BUZZno longer held5 signals

BUZZ · Exit · 1d

BUZZ, an algorithmic sentiment tracker, removed Costco Wholesale Corp from its portfolio as its index-driven methodology detected a decline in positive sentiment intensity across social media and news. The ETF's monthly rebalance mechanism, which ranks stocks for inclusion among its approximately 75 holdings, likely found COST's aggregate sentiment score had fallen below the requisite threshold for continued inclusion. This shift is consistent with Costco’s 90-day return of -5.7%, which may have negatively influenced public perception, alongside its high Price-to-Earnings Ratio of 47.21. Such an algorithmic removal directly reflects the evolving collective retail crowd signal, precisely what this particular fund aims to capture.

weight 0.340% → 0 (exited)·stock down 3.5% in the 30 days before

Jul 16·entry $945.57·now $935.80

-1.03%
since Jul 16

BUZZ · Weight decrease · 2d

The VanEck BUZZ ETF, which tracks sentiment leaders by applying NLP to social media and news, registered a consecutive weight decrease for COST. This algorithmic sentiment tracker, closely reflecting a retail-crowd signal, likely picked up a cooling of positive sentiment surrounding Costco. Operating with a portfolio of approximately 75 US large/mid caps and rebalancing monthly, BUZZ adjusted COST’s allocation after its NLP model detected a diminishing intensity of positive public discourse. This change aligns with Costco's recent price trajectory, specifically its -15.5% 30-day return, which likely contributed to a decline in the positive-sentiment ranking derived from the index's methodology. Despite the company's solid 9.23% revenue growth, the market's recent reaction, bringing COST to 84% of its 52-week high, suggests public perception may be reacting to broader market dynamics or valuation concerns, leading to its reduced presence in the sentiment-driven portfolio.

weight 0.350% → 0.330% (-0.020 pp)·stock down 2.2% in the 30 days before

Jun 30·entry $935.47·now $935.80

+0.04%
since Jun 30

BUZZ · Weight increase · 2d

COSTCO WHOLESALE CORP exhibits strong operational efficiency with a 28.27% Return on Equity and a 9.23% Revenue Growth, metrics that often correlate with positive discussions across social media and news platforms, forming the basis for BUZZ's sentiment-driven selections. This consecutive weight increase by BUZZ from June 22nd to June 24th occurred while COST had experienced a -8.8% 30-day return, trading at $942.24 and 86% of its 52-week high. As an algorithmic sentiment tracker, BUZZ reflects increasing positive sentiment intensity detected by its NLP engine across social media, blogs, and news, rather than making fundamental valuation calls. The incremental allocations, reaching 0.35% of the portfolio, suggest the aggregated retail-crowd signal, which BUZZ aims to capture, intensified its positive outlook on COSTCO despite the stock's recent price depreciation.

weight 0.330% → 0.350% (+0.020 pp)·stock down 6.5% in the 30 days before

Jun 24·entry $961.09·now $935.80Fresh

-2.63%
since Jun 24

BUZZ · Weight decrease · 3d

The BUZZ ETF, structured to passively hold roughly 75 US large/mid caps based on NLP-derived positive sentiment intensity from social media and news, has systematically reduced its allocation to COST. This observed series of consecutive weight decreases, from 0.28% down to 0.25% across several trading days in late May, indicates a moderation in the collective retail crowd's positive perception of Costco. Such a shift in sentiment, picked up by the fund's algorithmic tracker, would likely lead to COST receiving a lower rank during the index's monthly rebalance, prompting the decreased exposure. Despite Costco's price returning +0.8% over the prior 30 days, the sentiment signal guiding BUZZ's holdings appears to be adjusting its view.

weight 0.280% → 0.250% (-0.030 pp)·stock up 0.6% in the 30 days before

May 27·entry $1003.69·now $935.80

-6.76%
since May 27

BUZZ · Weight decrease · 2d

stock down 0.8% in the 30 days before

May 26·entry $1002.93·now $935.80

-6.69%
since May 26
LQAIno longer held1 signal

LQAI · Exit · 1d

stock up 4.2% in the 30 days before

May 12·entry $1021.88·now $935.80

-8.42%
since May 12

Sell signals show what the stock did after the AI exited. A negative number means the AI's exit was well-timed.

Buffett-style framework

Fails the frameworkas of Jun 21

Some AI ETFs, such as PQUS, show an increasing trend in their Costco holdings, suggesting a positive outlook, while others like AIEQ are decreasing their weight. This contrasts with the 'Fail' verdict derived from this framework, which is primarily driven by valuation concerns and insufficient financial data for a comprehensive assessment.

  • Circle of CompetenceCostco's membership-based retail model provides highly predictable revenue streams and stable unit economics, allowing for reasonable projection of ten-year cash flows.
  • Economic MoatCostco benefits from a strong scale-driven cost advantage and a powerful brand reputation built on value, reinforced by its membership model.
  • ManagementWithout direct access to historical shareholder communications or specific capital allocation details, management's candor and discipline cannot be fully assessed based on the provided data.
  • Financial HealthCritical financial health metrics like 10-year average ROE, operating margin trends, debt levels, and owner earnings cannot be fully assessed from the limited data provided.
  • Margin of SafetyWith a P/E ratio of 47.74 and other high valuation multiples, the current price appears to offer little to no margin of safety relative to a conservative estimate of intrinsic value.

Costco readily passes the circle of competence and economic moat stages due to its predictable business model and strong competitive advantages. However, the inability to thoroughly assess financial health and management quality based on available data, combined with a significant lack of margin of safety at its current valuation, leads to an overall 'Fail' verdict.

Educational interpretation generated by AI applying frameworks Warren Buffett documented in his shareholder letters and other public writings. Not a statement by Mr. Buffett or Berkshire Hathaway, and not investment advice.