Costco shares fall over 3% as selling pressure and valuation concerns mount

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Costco drops 3.09% today after sales

Highlights

Costco posted June net sales of $29.24 billion, up 10.6% year-over-year, with comparable sales rising 8.8%.
E-commerce activity surged 20.9% amid continued strength in member loyalty and both core retail and digital operations.
Technical signals are bearish with sustained downward momentum and a very high probability of trading between $867.1 and $925.29 in the next week.

Sales growth faces pressure as profit-taking weighs on sentiment

Costco reported net sales of $29.24 billion for June 2026, a 10.6% year-over-year increase, with comparable sales up 8.8% and e-commerce transactions rising by 20.9%. The company declared a quarterly cash dividend of $1.47 per share, payable on August 7, 2026, to shareholders of record as of July 24, 2026. High membership loyalty and continued growth in both core retail and digital operations were also noted. These developments occurred amid a slight sequential slowdown in sales and a recent stock decline tied to profit-taking, though price action has remained under broader selling pressure.

Anton Kharitonov, expert at Traders Union, believes the persistent slide below all moving averages signals clear technical weakness. He notes that despite solid sales growth and a steady dividend, profit-taking and valuation issues are driving the current downtrend. Kharitonov finds the bearish momentum, negative MACD, and a neutral ADX worrying for any near-term recovery. He points out that Costco’s overbought BBP only adds to the risk of further exhaustion among buyers. "Despite strong fundamentals, I see a risk-heavy setup with a high probability for deeper declines unless key levels are reclaimed," says Kharitonov.

Viktoras Karapetjanc, expert at Traders Union, emphasizes the robust fundamentals and high membership loyalty driving Costco’s consistent growth. He highlights the double-digit sales increase and surge in e-commerce as evidence of demand strength. Karapetjanc sees the recent stock drop as a healthy correction within a bullish structure. He notes that the company maintains strategic resilience and dividend stability. "Costco’s core momentum remains intact — further growth is expected as the stock consolidates and new opportunities emerge," states Karapetjanc.

Parshwa Turakhiya, analyst, sees short-term trading setups emerging as Costco approaches key price bands. He notes that sentiment has soured, with momentum signals flashing negative and a recent gap fueling cautious positioning. Turakhiya thinks sideways moves are likely, but warns that a break below $907.84 could trigger sharper declines, while a bounce above $917.98 might offer tactical opportunities. "Traders should stay nimble and watch for decisive moves at support and resistance to capture quick sentiment shifts," Turakhiya advises.

Bearish momentum persists as oversold signals and support risks emerge

Costco is trading below the 20-day ($957.69), 50-day ($988.44), and 200-day ($957.06) moving averages, signaling sustained downward momentum across short-, medium-, and long-term trends. The near-term ceiling is set at $917.98 and the floor at $907.84, with the prevailing alignment of the 50-day versus the 200-day moving average remaining bullish in broader context. Momentum signals are negative, as the Moving Average Convergence Divergence (MACD) shows a strong sell and the Average Directional Index (ADX) reads neutral, indicating momentum is down but the overall trend strength is limited. The Relative Strength Index (RSI) is at 41.09 and the Commodity Channel Index (CCI) stands at -51.85, both leaning toward oversold territory, while the Stochastic RSI at 66.78 is neutral. Bull/Bear Power (BBP) at 16.54 signals buyers hold a technical advantage intraday, yet with an overbought forecast, suggesting exhaustion risk for bulls. The stock is down to $910.63, dropping $29.05 or 3.09% on the session after a downside gap of about 2.34%. Price action is near the day’s low, with intraday volatility at 1.12%. Today’s intraday decline and weak momentum are consistent with prevailing bearish signals, despite the brief advantage shown by BBP.

Earlier, analysts noted that Costco’s premium valuation leaves the stock vulnerable to pressure when monthly sales growth moderates, despite its strong core business metrics. The current technical setup reinforces this sensitivity, with sustained bearish momentum increasing the probability of a further downward move and placing added importance on support at $907.84 as a critical level for traders to monitor.

Source of Data: COST Price Analysis by TU

The analysis is based on a proprietary model combining technical, on-chain, and expert data. Not investment advice. See methodology

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