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Archive
- 8/28/2026 -
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Costco Co. (COST) Technical Analysis
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| Summary:
| | Weekly :  | | Daily :
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| | It was the negative week for the Costco Co. (COST). During the week, the COST gave back -2.27 points, or -0.24%, and closed at 945.47 on Friday, August 28, 2026. Weekly volume was -27% below average.
COST is a member of Consumer Staples Sector. Consumer Staples is the second most overbought sector. COST is a member of Hypermarkets & Super Centers Industry. Hypermarkets & Super Centers is the ninth most oversold industry. Sector/industry rotation is considered a proven strategy to beat the market. Use the following links to find overbought/oversold technical indicators by Sector or by Industry.
 Long-term trend: [See COST long-term trend chart]
A long-term uptrend had started on May 24, 2000 at 25.94 and reached 1096.50 on May 19, 2026. COST gained -1070.56 points, or -4127.06%, in 1355 weeks. The price is now at the 14.11% retracement level.
 Medium-term trend: [See COST medium-term trend chart]
A medium-term downtrend had started on May 19, 2026 at 1096.50 and reached 907.21 on July 10, 2026. COST lost 189.29 points, or 17.26%, in 7 weeks. The price is now at the 20.21% retracement level.
 Weekly Technical Indicators: [See COST weekly technical indicators chart]
Weekly Williams' Percentage Range is oversold. Use the Technical Stock Screener to see the list of stocks with weekly oversold Williams' Percentage Range. Oscillators are designed to signal a possible trend reversal. They can act as alerts and should be taken in conjunction with other technical analysis tools. Oscillators can be used to confirm other technical signals. Use the following link to access Williams' Percentage Range help.
The weekly MACD line is below its signal line since May 29, 2026. This is an indication that the medium-term trend is down. The distance between MACD and the signal line is low and getting smaller. It indicates that the current medium-term downtrend is getting weak. Use the following link to access a MACD help.
Short-term trend: [See COST short-term trend chart]
A short-term downtrend had started on August 24, 2026 at 974.49 and reached 933.25 on August 27, 2026. COST lost 41.24 points, or 4.23%, in 3 days. The price is now at the 29.63% retracement level.
 Daily Technical Indicators: [See COST daily technical indicators chart]
Daily technical indicators are neutral.
The daily MACD line is below its signal line since August 26, 2026. This is an indication that the short-term trend is down. The distance between MACD and the signal line is low, but getting bigger. It indicates that the current short-term downtrend is getting stronger.
During the last week, the price has risen above the Parabolic SAR (stop and reversal). A Parabolic SAR below the price is a bullish signal, and it indicates that momentum is likely to remain in the upward direction. A Parabolic SAR is used as a trailing stop loss for long or short positions. It works best during strong trending periods. Use the following links to access Parabolic SAR Help, or use the Technical Stock Screener to see the list of stocks with the Parabolic SAR close to the price level.
The distance between the Bollinger Bands (3.86%) is close to one year low (3.71%). It indicates the period of low volatility of the stock price, and it is considered a buy signal for the option traders. The Bollinger Bands are often used with a non-oscillator indicator like chart patterns or a trendline. The signals are considered more reliable if these indicators confirm the recommendation of the Bollinger Bands. Use the following links to access the Bollinger Bands Help, or use the Technical Stock Screener to see the list of stocks with the price above the Upper Bollinger Band or below the Lower Bollinger Band.
Price is close to the 50 Day Moving Average. The moving average crossover signals work better when the stock develops a strong trend, but they are ineffective when the stock is in a trading range. Moving average crossover systems can be effective, but should be used in conjunction with trend patterns, momentum indicators, candlesticks and other aspects of technical analysis. Use the following links to access Moving Average Crossover trading technique, or use the Technical Stock Screener to see the list of stocks with the Moving Average close to the price level.
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