Aon plc Class A Ordinary Shares (Ireland) (AON)
Showing Closing Date Range from Mar, 19 to Sep, 15, 2026 compared to Sep, 19, 2025 to Mar, 18, 2026.
Compare Last 6 Months with Previous Period
Current Period Close
$308.14
Mar 19, 2026 - Sep 15, 2026
Previous Period Close
$317.88
Sep 19, 2025 - Mar 18, 2026
Net Comparison Delta
$-9.74 (-3.06%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(124 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Sep 15, 2026 | $308.14 | Mar 18, 2026 | $317.88 | -3.06% |
| Sep 14, 2026 | $311.54 | Mar 17, 2026 | $321.18 | -3.00% |
| Sep 11, 2026 | $302.69 | Mar 16, 2026 | $326.75 | -7.36% |
| Sep 10, 2026 | $307.77 | Mar 13, 2026 | $321.41 | -4.24% |
| Sep 09, 2026 | $304.69 | Mar 12, 2026 | $315.91 | -3.55% |
| Sep 08, 2026 | $315.79 | Mar 11, 2026 | $316.90 | -0.35% |
| Sep 04, 2026 | $323.09 | Mar 10, 2026 | $320.96 | +0.66% |
| Sep 03, 2026 | $327.00 | Mar 09, 2026 | $332.84 | -1.75% |
| Sep 02, 2026 | $330.88 | Mar 06, 2026 | $340.60 | -2.85% |
| Sep 01, 2026 | $326.30 | Mar 05, 2026 | $338.77 | -3.68% |
| Aug 31, 2026 | $321.52 | Mar 04, 2026 | $341.18 | -5.76% |
| Aug 28, 2026 | $355.40 | Mar 03, 2026 | $339.07 | +4.82% |
| Aug 27, 2026 | $349.56 | Mar 02, 2026 | $337.80 | +3.48% |
| Aug 26, 2026 | $353.98 | Feb 27, 2026 | $335.47 | +5.52% |
| Aug 25, 2026 | $354.83 | Feb 26, 2026 | $330.27 | +7.44% |
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