Arthur J. Gallagher & Co. (AJG) NYSE

Currency In USD

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AJG Historical Return

If you invested $1000 in Arthur J. Gallagher & Co. (AJG) 10 years ago, it would be worth $5,560.39 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,741.7, while $1000 invested 1 year ago would be worth $813.02. This corresponds to total returns of 456.04%, 74.17%, -18.7%, respectively, with annualized returns of 18.71%, 11.74%, -18.7%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

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AJG Historical Data

Date Range:

DateOpenCloseAdj CloseHighLowVolume
September 11, 2026245.95240.32240.32246.82240.321.07M
September 10, 2026245.22243.31243.31247.55242.71.05M
September 09, 2026250.2244.28244.28251.34243.411.2M
September 08, 2026257.68251.45251.45258.39251.291.11M
September 04, 2026263.33262.69262.69266.71261.971.01M
September 03, 2026265.81266.66266.66271.27264.691.48M
September 02, 2026263.5264.46264.46266.21261.251.83M
September 01, 2026264.43262262267.23260.042.02M
August 31, 2026264.13262.15262.15267.07261.061.47M
August 28, 2026260.5267.56267.56268.91260.51.15M
August 27, 2026260.6260.15260.15264.08259.26954,664
August 26, 2026267.64265.03265.03272.78263.581.42M
August 25, 2026269.84268.51268.51272.79266.961.75M
August 24, 2026265271.99271.99272.37262.491.51M
August 21, 2026259.44263.81263.81264.21257.681.15M
August 20, 2026256.45259.61259.61262.17255.111.34M
August 19, 2026249.44257.45257.45260.28249.111.54M
August 18, 2026250.02248.36248.36255.28248.051.24M
August 17, 2026248.99247.97247.97253.57246.88843,978
August 14, 2026253.16251.21251.21254.39250852,501
August 13, 2026256.35253.49253.49257.122501.01M
August 12, 2026250255.46255.46256.29248.111.45M
August 11, 2026248.98253.51253.51256.22471.65M
August 10, 2026247252.43252.43252.86245.331.21M
August 07, 2026247.96248.12248.12252.04246.291.08M
August 06, 2026252.78251.74251.74253.78247.521.26M
August 05, 2026249.83251.03251.03252.29247.57950,928
August 04, 2026242.84248.06248.06248.83240.821.41M
August 03, 2026251.21247.79247.79255.98246.221.56M
July 31, 2026245.93249.42249.42255.73242.281.73M
July 30, 2026269.99256.46256.46269.99253.541.88M
July 29, 2026261.59268.91268.91269.8259.341.56M
July 28, 2026255265.31265.31265.38254.151.53M
July 27, 2026249.42253.36253.36255.4248.141.11M
July 24, 2026242.93247.77247.77248.44241.121.25M
July 23, 2026242.45242.21242.21243.85240.981.33M
July 22, 2026248.04242.5242.5248.04241.14961,668
July 21, 2026251.97248.22248.22255.5247.151.04M
July 20, 2026250.93253.66253.66254.76249.78879,579
July 17, 2026257.61253.9253.9261.92252.31.53M
July 16, 2026250.62255.93255.93256.142501.37M
July 15, 2026255.61247.77247.77255.61246.351.85M
July 14, 2026257.23253.83253.83260.19253.821.36M
July 13, 2026255.97261.23261.23261.27255.971.28M
July 10, 2026254.9253.09253.09255.5250.941.03M
July 09, 2026254.15253.76253.76255.22251.721.47M
July 08, 2026253.38256.61256.61256.87251.851.89M
July 07, 2026254254.67254.67256.632521.8M
July 06, 2026251.36249.77249.77251.79247.881.71M
July 02, 2026240.96252.44252.44252.96240.312.73M
July 01, 2026230.81239.67239.67244.08229.632.93M
June 30, 2026226.85229.57229.57230.58224.491.62M
June 29, 2026226.44227.12227.12227.19223.261.47M
June 26, 2026220.58226.01226.01226.56219.672.19M
June 25, 2026219.79217.86217.86222.98217.811.37M
June 24, 2026217.63220.76220.76221.98215.133.08M
June 23, 2026213.68215.78215.78217.87211.992.26M
June 22, 2026213.92209.08209.08216.12208.082.11M
June 18, 2026216.17214.06214.06216.18211.292.77M
June 17, 2026216.5216.09216.09224.99215.621.6M
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