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- 8/21/2026 -
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Ecolab Inc. (ECL) Technical Analysis

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Summary:
Weekly :Williams' Percentage Range is overbought
Daily :The 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 for the Ecolab Inc. (ECL). During the week, the ECL gained 5.52 points, or 2.00%, and closed at 281.63 on Friday, August 21, 2026. Weekly volume was 42% above average.

Long-term trend: [See ECL long-term trend chart]
A long-term uptrend had started on November 3, 2022 at 131.04 and reached 309.27 on February 24, 2026. ECL gained -178.23 points, or -136.01%, in 172 weeks. The chart has formed a Broadening Ascending Wedge chart pattern. The trend support level is at 257.23 and resistance is at 331.91. 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 long-term trend.

Medium-term trend: [See ECL medium-term trend chart]
A medium-term uptrend had started on May 19, 2026 at 243.15 and reached 288.45 on August 6, 2026. ECL gained -45.30 points, or -18.63%, in 11 weeks. The chart has formed a Ascending Triangle chart pattern. The trend support level is at 270.26 and resistance is at 288.52. An Ascending Triangle is a variation of triangle formation that has a flat resistance line and rising support line. The higher lows indicate an increasing demand and give the ascending triangle definitive bullish bias. An Ascending Triangle usually represents an accumulation stage in bullish market. An Ascending Triangle is considered to be a continuation pattern, especially in an uptrend, but it may also mark a reversal in a downtrend. Use the following link to access a Ascending Triangle chart pattern help, or use a Technical Stock Screener to see the list of stocks with Ascending Triangle pattern in a medium-term trend.

Weekly Technical Indicators: [See ECL weekly technical indicators chart]
Weekly Williams' Percentage Range is overbought. Use the Technical Stock Screener to see the list of stocks with overbought weekly 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 June 18, 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 ECL short-term trend chart]
A short-term downtrend had started on August 6, 2026 at 288.45 and reached 273.33 on August 17, 2026. ECL lost 15.12 points, or 5.24%, in 11 days. The price is now at the 54.89% retracement level.

Daily Technical Indicators: [See ECL daily technical indicators chart]
Daily technical indicators are neutral.

The daily MACD line is below its signal line since August 12, 2026. This is an indication that the short-term trend is down. The distance between MACD and the signal line is low and getting smaller. It indicates that the current short-term downtrend is getting weak.

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) 53.27
Williams' Percentage Range (W%R) 36.60
Lane's Stochastic (%D-Slow) 54.03
Greed/Fear Indicator (GFI) 56.89
Moving Average Converg./Diverg. (MACD) 2.13
Weekly Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 70.76
Williams' Percentage Range (W%R) 15.70
Overbought
Lane's Stochastic (%D-Slow) 72.34
Greed/Fear Indicator (GFI) 70.55
Moving Average Converg./Diverg. (MACD) 0.31
Trading Signals
Description Value Chart
Yearly Trendline Resistance 331.91
Monthly Trendline Resistance 288.52
Upper Bollinger Band 287.02
Weekly Stochastic Crossing 282.41
Daily Stochastic Crossing 281.74
Price 281.63
20 Day Moving Average 280.80
50 Day Moving Average 276.08
Parabolic System 273.33
Lower Bollinger Band 271.67
Monthly Trendline Support 270.26
Yearly Trendline Support 257.23
Sector and Industry
Description Name Rank
Sector Materials 5
Industry Specialty Chemicals 41
Daily Trend
Description Value
Direction Up
Chart Pattern Uptrend
Low 273.33
Low Date 08/17/2026
High 286.60
High Date 08/20/2026
Weekly Trend
Monthly Trend
Description Value
Direction Down
Chart Pattern DownTrend
Status
Resistance
Support
High 288.45
High Date 08/06/2026
Low 273.33
Low Date 08/17/2026
Description Value
Direction Up
Chart Pattern Ascending Triangle
Status Valid
Resistance 288.52
Support 270.26
Low 243.15
Low Date 05/19/2026
High 288.45
High Date 08/06/2026
Quarterly Trend
Yearly Trend
Description Value
Direction Down
Chart Pattern DownTrend
Status
Resistance
Support
High 309.27
High Date 02/24/2026
Low 243.15
Low Date 05/19/2026
Description Value
Direction Up
Chart Pattern Broadening Ascending Wedge
Status Valid
Resistance 331.91
Support 257.23
Low 131.04
Low Date 11/03/2022
High 309.27
High Date 02/24/2026
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.