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Archive
- 10/23/2026 -
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Costco Co. (COST) Technical Analysis
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| Summary:
| | Weekly : | | Daily :
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| | It was a third consecutive positive week for the Costco Co. (COST). During the week, the COST gained 14.21 points, or 1.44%, and closed at 1003.32 on Friday, October 23, 2026. Weekly volume was -6% below average.
COST is a member of Consumer Staples Sector. Consumer Staples is the most overbought 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 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 8.70% retracement level.
Medium-term trend: [See COST medium-term trend chart]
A medium-term uptrend had started on September 25, 2026 at 883.10 and reached 1021.45 on October 23, 2026. COST gained -138.35 points, or -15.67%, in 4 weeks. The price is now at the 13.10% retracement level.
 Weekly Technical Indicators: [See COST weekly technical indicators chart]
Weekly Williams' Percentage Range is strongly overbought. Use the Technical Stock Screener to see the list of stocks with strongly overbought weekly overbought 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 above its signal line since October 9, 2026. This is an indication that the medium-term trend is up. 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 October 1, 2026 at 903.78 and reached 1021.45 on October 23, 2026. COST gained -117.67 points, or -13.02%, in 22 days. The price is now at the 15.41% retracement level.
 Daily Technical Indicators: [See COST daily technical indicators chart]
Daily Relative Strength Index and Lane's Stochastic are overbought while Williams' Percentage Range is strongly overbought. Use the Technical Stock Screener to see the list of stocks with overbought daily Relative Strength Index and Lane's Stochastic or strongly overbought daily Williams' Percentage Range. Use the following links to access Lane's Stochastic and Relative Strength Index help.
The daily MACD line is above its signal line since September 24, 2026. This is an indication that the short-term trend is up.
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 20 Day Moving Average has advanced above the 50 Day Moving Average. Such crossover is considered a bullish 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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