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Archive
- 8/15/2025 -
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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 -8.94 points, or -0.91%, and closed at 972.04 on Friday, August 15, 2025. COST was trading at average weekly trading volume.
COST is a member of Consumer Staples Sector. Consumer Staples is the most oversold sector. 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 20, 2022 at 406.51 and reached 1078.00 on February 13, 2025. COST gained -671.49 points, or -165.18%, in 142 weeks. The price is now at the 15.78% retracement level.
 Medium-term trend: [See COST medium-term trend chart]
A medium-term downtrend had started on June 3, 2025 at 1067.08 and reached 925.00 on July 31, 2025. COST lost 142.08 points, or 13.31%, in 8 weeks. The price is now at the 33.11% retracement level.
 Weekly Technical Indicators: [See COST weekly technical indicators chart]
Weekly technical indicators are neutral. During the last week, weekly Lane's Stochastic signal line (%D) has moved above oversold area. Such crossover is considered a bullish signal. 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 Lane's Stochastic help.
The weekly MACD line is below its signal line since June 13, 2025. This is an indication that the medium-term trend is down. Use the following link to access a MACD help.
 Short-term trend: [See COST short-term trend chart]
A short-term uptrend had started on July 31, 2025 at 925.00 and reached 991.75 on August 12, 2025. COST gained -66.75 points, or -7.22%, in 12 days. The chart has formed a Broadening Ascending Wedge chart pattern. The trend support level is at 964.16 and resistance is at 1007.54. A Broadening Ascending Wedge pattern is considered to be a reversal formation. It usually appears in a mature trend, characterized by overbought/oversold long-term and short-term indicators, and often generates divergence on long-term indicators. Use the following link to access a Broadening Ascending Wedge chart pattern help, or use a Technical Stock Screener to see the list of stocks with Broadening Ascending Wedge pattern in a short-term trend.
 Daily Technical Indicators: [See COST daily technical indicators chart]
Daily Williams' Percentage Range and Lane's Stochastic are overbought. Use the Technical Stock Screener to see the list of stocks with overbought daily Williams' Percentage Range and Lane's Stochastic. During the last week, daily Lane's Stochastic main line (%K) has declined below the overbought signal line (%D). Such crossover is considered a bearish signal. Use the following link to access Williams' Percentage Range help.
The daily MACD line is above its signal line since July 31, 2025. This is an indication that the short-term trend is up. The distance between MACD and the signal line is low and getting smaller. It indicates that the current short-term uptrend is getting weak.
During the last week, the price has fallen below the Parabolic SAR (stop and reversal). A Parabolic SAR above the price is a bearish signal, and it indicates that momentum is likely to remain in the downward 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.
During the last week, the price has crossed below the 50 Day Moving Average. Such crossover is considered a bearish signal. 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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