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- 9/26/2025 -
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Corning Inc. (GLW) Technical Analysis

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Summary:
Weekly :Broken uptrend resistance line - uptrend exhaustionBroken uptrend resistance line - uptrend exhaustionRelative Strength Index, Williams' Percentage Range and Lane's Stochastic are strongly overboughtStochastic has declined below the signal line
Daily :Williams' Percentage Range is overboughtStochastic has declined below the signal lineDaily  MACD line has moved below its signal lineThe price has fallen below the Parabolic SAR
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It was the negative week for the Corning Inc. (GLW). During the week, the GLW gave back -0.21 points, or -0.26%, and closed at 79.35 on Friday, September 26, 2025. Weekly volume was 37% above average.

Long-term trend: [See GLW long-term trend chart]
A long-term uptrend had started on November 21, 2008 at 7.36 and reached 81.59 on September 24, 2025. GLW gained -74.23 points, or -1008.56%, in 878 weeks. The chart has formed a Broadening Ascending Wedge chart pattern. The uptrend resistance line (27.52) is broken, while daily and weekly technical indicators are overbought. Uptrend is exhausted and trend reversal is possible soon. 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 resistance line in a long-term trend.

Medium-term trend: [See GLW medium-term trend chart]
A medium-term uptrend had started on October 24, 2023 at 25.26 and reached 81.59 on September 24, 2025. GLW gained -56.33 points, or -223.00%, in 100 weeks. The chart has formed a Broadening Ascending Wedge chart pattern. The uptrend resistance line (41.47) is broken, while daily and weekly technical indicators are overbought. Uptrend is exhausted and trend reversal is possible soon. 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 resistance line in a medium-term trend.

Weekly Technical Indicators: [See GLW weekly technical indicators chart]
Weekly Relative Strength Index, Williams' Percentage Range and Lane's Stochastic are strongly overbought. Use the Technical Stock Screener to see the list of stocks with strongly overbought weekly overbought Relative Strength Index, Williams' Percentage Range and Lane's Stochastic. During the last week, weekly Lane's Stochastic main line (%K) has declined below the overbought signal line (%D). Such crossover is considered a bearish 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 links to access Lane's Stochastic, Relative Strength Index and Williams' Percentage Range help.

The weekly MACD line is above its signal line since May 23, 2025. This is an indication that the medium-term trend is up. The distance between MACD and the signal line is near its high and getting bigger. It indicates that the current medium-term uptrend is strong. Use the following link to access a MACD help.

Short-term trend: [See GLW short-term trend chart]
A short-term downtrend had started on September 24, 2025 at 81.59 and reached 77.05 on September 25, 2025. GLW lost 4.54 points, or 5.56%, in 1 days. The price is now at the 50.66% retracement level.

Daily Technical Indicators: [See GLW daily technical indicators chart]
Daily Williams' Percentage Range is overbought. Use the Technical Stock Screener to see the list of stocks with overbought daily Williams' Percentage Range. 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.

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

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.

Daily Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 73.23
Williams' Percentage Range (W%R) 15.80
Overbought
Lane's Stochastic (%D-Slow) 74.66
Greed/Fear Indicator (GFI) 77.37
Moving Average Converg./Diverg. (MACD) 3.86
Weekly Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 93.98
Strong Overbought
Williams' Percentage Range (W%R) 6.50
Strong Overbought
Lane's Stochastic (%D-Slow) 96.34
Strong Overbought
Greed/Fear Indicator (GFI) 88.38
Overbought
Moving Average Converg./Diverg. (MACD) 4.94
Trading Signals
Description Value Chart
Upper Bollinger Band 84.19
Parabolic System 81.57
Weekly Stochastic Crossing 80.81
Daily Stochastic Crossing 80.02
Price 79.35
20 Day Moving Average 75.45
Quarterly Trendline Resistance 70.30
50 Day Moving Average 67.75
Lower Bollinger Band 66.81
Sector and Industry
Description Name Rank
Sector Information Technology 7
Industry Electronic Components 122
Daily Trend
Description Value
Direction Down
Chart Pattern DownTrend
High 81.59
High Date 09/24/2025
Low 77.05
Low Date 09/25/2025
Weekly Trend
Monthly Trend
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 63.37
Low Date 08/20/2025
High 81.59
High Date 09/24/2025
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 37.31
Low Date 04/07/2025
High 81.59
High Date 09/24/2025
Quarterly Trend
Yearly Trend
Description Value
Direction Up
Chart Pattern Broadening Ascending Wedge
Status Broken Resistance
Resistance 70.30
Support 41.47
Low 25.26
Low Date 10/24/2023
High 81.59
High Date 09/24/2025
Description Value
Direction Up
Chart Pattern Broadening Ascending Wedge
Status Broken Resistance
Resistance 61.54
Support 27.52
Low 7.36
Low Date 11/21/2008
High 81.59
High Date 09/24/2025
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.