Aon (AON)

As of 30 September 2026, short interest in AON is 4,223,243 shares, up 442,792 shares over the last month. Over the last 48 readings it ranged from 1,839,550 shares (29 August 2025) to 5,521,761 shares (28 February 2025). At the reported average volume of 2.4M shares a day that is 1.8 days to cover.

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As of 9 October 2026, the short share of AON volume is 30.0%, down 15.8 points over the last five sessions. Over the last 30 readings it ranged from 16.8% (17 September 2026) to 64.1% (2 September 2026). The latest reading is 9.4 points below the 30-session average of 39.5%, on 736K shares reported.

As of 8 September 2026, the fails-to-deliver balance in AON is 880 shares, down 2,762 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (15 May 2026) to 40,581 shares (15 June 2026). The latest reading sits at the bottom of that range.

Over the last 90 days AON insiders reported 6 open-market buys ($6.5M) against 6 sells ($1.4M), so the dollar flow leans toward buying. Latest filing: KNIGHT LESTER B (Director) on 2026-09-02.

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

8 Form 144 notices on file for AON worth $9.9M at the prices reported; 2 in the last 90 days worth $1.4M. Latest: Zeidel Darren filed on 2026-07-28 to sell 1,900 shares ($718K) from 2026-07-28.

2 holders report 5% or more of AON in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.3% of the class (15,687,441 shares), filed 2026-04-29 for an event on 2026-03-31.

9 of the 30 tracked managers held AON at their latest 13F, $1.39B in total at quarter-end prices. AQR Capital Management is the largest at $623.0M (0.2% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 4 cut.

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

In Q2 FY 2026 (quarter ended 2026-06-30) Aon reported revenue of $4.25B, up 2.2% from the same quarter a year earlier, and net income of $551.0M (2.58 diluted EPS). In FY 2025 it generated $3.48B of operating cash flow and spent $629.0M on dividends. As of 2026-06-30, cash was $1.06B against $14.97B of debt.

Quarterly, last 8 quarters

Fiscal years, with buybacks and dividends

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-28 from the cover page.