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- 8/15/2025 -
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Comcast Corp. (CMCSA) Technical Analysis

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Summary:
Weekly :Overbought sectorOversold industry
Daily :Stochastic signal line moved above oversold areaDaily  MACD line has moved above its signal lineThe price has risen above the Parabolic SARThe price moved above the moving average in the center of the Bollinger Bands
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It was a first positive week after 5 consecutive negative weeks for the Comcast Corp. (CMCSA). During the week, the CMCSA gained 1.78 points, or 5.62%, and closed at 33.45 on Friday, August 15, 2025. CMCSA was trading at average weekly trading volume.

CMCSA is a member of Communication Services Sector. Communication Services is the most overbought sector. CMCSA is a member of Cable & Satellite Industry. Cable & Satellite is the fourth 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 CMCSA long-term trend chart]
A long-term downtrend had started on August 16, 2023 at 47.46 and reached 31.03 on August 11, 2025. CMCSA lost 16.43 points, or 34.62%, in 103 weeks. The price is now at the 14.73% retracement level.

Medium-term trend: [See CMCSA medium-term trend chart]
A medium-term downtrend had started on July 1, 2025 at 36.66 and reached 31.03 on August 11, 2025. CMCSA lost 5.63 points, or 15.36%, in 5 weeks. The chart has formed a Broadening Descending Wedge chart pattern. The trend support level is at 30.31 and resistance is at 35.37. A Broadening Descending 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 Descending Wedge chart pattern help, or use a Technical Stock Screener to see the list of stocks with Broadening Descending Wedge pattern in a medium-term trend.

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

The weekly MACD line is below its signal line since August 1, 2025. This is an indication that the medium-term trend is down. The distance between MACD and the signal line is low, but getting bigger. It indicates that the current medium-term downtrend is getting stronger. Use the following link to access a MACD help.

Short-term trend: [See CMCSA short-term trend chart]
A short-term uptrend had started on August 11, 2025 at 31.03 and reached 33.54 on August 15, 2025. CMCSA gained -2.51 points, or -8.09%, in 4 days. Price is near the trend high.

Daily Technical Indicators: [See CMCSA daily technical indicators chart]
Daily technical indicators are neutral. During the last week, daily 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.

During the last week, daily MACD line has moved above its signal line. Such crossover is considered a bullish signal.

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.

During the last week, the price has moved above the moving average in the center of the Bollinger Bands. 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.

Daily Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 49.31
Williams' Percentage Range (W%R) 59.80
Lane's Stochastic (%D-Slow) 63.21
Greed/Fear Indicator (GFI) 50.91
Moving Average Converg./Diverg. (MACD) -0.68
Weekly Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 46.27
Williams' Percentage Range (W%R) 70.00
Lane's Stochastic (%D-Slow) 23.57
Greed/Fear Indicator (GFI) 33.03
Moving Average Converg./Diverg. (MACD) -0.91 Bullish
Trading Signals
Description Value Chart
Upper Bollinger Band 35.64
Weekly Trendline Resistance 35.37
50 Day Moving Average 34.33
Price 33.45
20 Day Moving Average 33.15
Daily Stochastic Crossing 32.94
Weekly Stochastic Crossing 32.20
Parabolic System 31.23
Lower Bollinger Band 30.61
Weekly Trendline Support 30.31
Sector and Industry
Description Name Rank
Sector Communication Services 9
Industry Cable & Satellite 4
Daily Trend
Description Value
Direction Up
Chart Pattern Uptrend
Low 31.03
Low Date 08/11/2025
High 33.54
High Date 08/15/2025
Weekly Trend
Monthly Trend
Description Value
Direction Down
Chart Pattern Broadening Descending Wedge
Status Valid
Resistance 35.37
Support 30.31
High 36.66
High Date 07/01/2025
Low 31.03
Low Date 08/11/2025
Description Value
Direction Down
Chart Pattern DownTrend
Status
Resistance
Support
High 45.31
High Date 10/31/2024
Low 31.03
Low Date 08/11/2025
Quarterly Trend
Yearly Trend
Description Value
Direction Down
Chart Pattern DownTrend
Status
Resistance
Support
High 47.46
High Date 08/16/2023
Low 31.03
Low Date 08/11/2025
Description Value
Direction Down
Chart Pattern DownTrend
Status
Resistance
Support
High 61.80
High Date 09/02/2021
Low 28.39
Low Date 10/13/2022
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.