The Greedy Trader Weekly Analysis
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Hypermarkets & Super Centers Industry Stocks Technical Analysis - COST

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- 7/18/2025 -
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Costco Co. (COST) Technical Analysis

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Summary:
Weekly :Broken trend support lineOversold sectorBroken trend support line
Daily :20 Day Moving Average has crossed below the 50 Day Moving AverageLane's Stochastic is oversoldThe price touches the lower Bollinger Band
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It was the negative week for the Costco Co. (COST). During the week, the COST dropped -19.38 points, or -2.00%, and closed at 950.95 on Friday, July 18, 2025. Weekly volume was 8% above average.

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 chart has formed a Rising Channel chart pattern. The uptrend support line (985.81) is broken. Usually a broken support is considered to be a long-term bearish signal, but since daily indicators are oversold a short-term pull back is possible. COST may retest the broken support line. It is considered to be a resistance line now. Use the following links to access Trend Support/Resistance Help, or use the Technical Stock Screener to see the list of stocks with broken trend support in a long-term trend.

Medium-term trend: [See COST medium-term trend chart]
A medium-term downtrend had started on June 3, 2025 at 1067.08 and reached 947.51 on July 17, 2025. COST lost 119.57 points, or 11.21%, in 6 weeks. The chart has formed a Falling Wedge chart pattern. The downtrend support line (964.34) is broken. Usually a broken support is considered to be a long-term bearish signal, although a short-term pull back is possible. Use the following links to access Trend Support/Resistance Help, or use the Technical Stock Screener to see the list of stocks with broken trend support in a medium-term trend.

Weekly Technical Indicators: [See COST weekly technical indicators chart]
Weekly technical indicators are neutral.

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 downtrend had started on June 24, 2025 at 1005.84 and reached 947.51 on July 17, 2025. COST lost 58.33 points, or 5.80%, in 23 days. The price is now at the 5.90% retracement level.

Daily Technical Indicators: [See COST daily technical indicators chart]
Daily Lane's Stochastic is oversold. Use the Technical Stock Screener to see the list of stocks with daily oversold Lane's Stochastic. 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 daily MACD line is below its signal line since June 4, 2025. 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.

The price touches the lower Bollinger Band. 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.

During the last week, the 20 Day Moving Average 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.

Daily Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 31.00
Williams' Percentage Range (W%R) 78.70
Lane's Stochastic (%D-Slow) 15.69
Oversold
Greed/Fear Indicator (GFI) 22.68
Moving Average Converg./Diverg. (MACD) -8.50
Weekly Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 47.50
Williams' Percentage Range (W%R) 54.80
Lane's Stochastic (%D-Slow) 21.06
Greed/Fear Indicator (GFI) 37.74
Moving Average Converg./Diverg. (MACD) 19.27
Trading Signals
Description Value Chart
Upper Bollinger Band 1006.53
50 Day Moving Average 999.82
Quarterly Trendline Support 985.81
20 Day Moving Average 979.60
Parabolic System 977.57
Weekly Trendline Resistance 977.55
Weekly Stochastic Crossing 967.79
Weekly Trendline Support 964.34
Price 950.95
Daily Stochastic Crossing 950.54
Lower Bollinger Band 948.45
Sector and Industry
Description Name Rank
Sector Consumer Staples 1
Industry Hypermarkets & Super Centers 26
Daily Trend
Description Value
Direction Down
Chart Pattern DownTrend
High 1005.84
High Date 06/24/2025
Low 947.51
Low Date 07/17/2025
Weekly Trend
Monthly Trend
Description Value
Direction Down
Chart Pattern Falling Wedge
Status Broken Support
Resistance 977.55
Support 964.34
High 1067.08
High Date 06/03/2025
Low 947.51
Low Date 07/17/2025
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 871.70
Low Date 04/07/2025
High 1067.08
High Date 06/03/2025
Quarterly Trend
Yearly Trend
Description Value
Direction Up
Chart Pattern Rising Channel
Status Broken Support
Resistance 1165.19
Support 985.81
Low 406.51
Low Date 05/20/2022
High 1078.00
High Date 02/13/2025
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 25.94
Low Date 05/24/2000
High 1078.00
High Date 02/13/2025
Warning: TheGreedyTrader.com presents weekly analysis. Technical indicators and trend parameters are calculated for the close of business day indicated on the top right corner of the screen.