AON options flow: unusual options activity in Aon plc
Updated 28 September 2026, 09:54 ET
Over the last week the tape recorded 14 unusual options prints in Aon plc (AON), $916K of tracked premium, leaning bearish. Bullish premium was $276K against $502K bearish; $333K went into calls and $583K into puts, a put call ratio of 1.75. The largest print was $315K of AON 18 Dec 2026 $260 puts on 22 September 2026, executed at ask. The last session with prints, 28 September 2026, added 1 print and $26K of premium. AON closed at $277.99 on 25 September 2026, up 0.7%.
This week's unusual flow
Prints from 21 September 2026 to 28 September 2026, 6 sessions. Delayed tier: every print is shown twenty minutes after it executed, and the page is rebuilt after each session.
Net premium is bullish minus bearish premium. The put call ratio is put premium divided by call premium, weighted by money rather than by contract count. Sweeps is the share of prints executed across several exchanges at once. Read the guide: Reading the Pulse.
Largest prints of the week
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 22 Sep 2026 | AON 18 Dec 2026 $260 puts | Trade | 500 | 8 | $315K | At ask | Bearish | High conviction |
| 24 Sep 2026 | AON 15 Jan 2027 $280 puts | Sweep | 52 | 35 | $93K | At ask | Bearish | High conviction |
| 24 Sep 2026 | AON 20 Nov 2026 $290 calls | Sweep | 95 | 14 | $89K | At ask | Bullish | High conviction |
| 24 Sep 2026 | AON 20 Nov 2026 $250 calls | Trade | 23 | 1 | $75K | At bid | Neutral | Notable |
| 21 Sep 2026 | AON 16 Oct 2026 $290 puts | Sweep | 85 | 124 | $53K | At bid | Bullish | Notable |
| 24 Sep 2026 | AON 20 Nov 2026 $250 calls | Sweep | 13 | 1 | $41K | At ask | Bullish | High conviction |
| 23 Sep 2026 | AON 16 Oct 2026 $320 puts | Sweep | 11 | 656 | $39K | At bid | Neutral | |
| 25 Sep 2026 | AON 20 Nov 2026 $310 calls | Sweep | 85 | 9 | $35K | At bid | Bearish | Notable |
| 23 Sep 2026 | AON 16 Apr 2027 $270 calls | Trade | 10 | 2 | $34K | At ask | Bullish | Notable |
| 23 Sep 2026 | AON 16 Apr 2027 $280 calls | Trade | 12 | 5 | $34K | At bid | Bearish | |
| 24 Sep 2026 | AON 16 Oct 2026 $310 puts | Trade | 10 | 306 | $32K | At bid | Bullish | |
| 25 Sep 2026 | AON 15 Jan 2027 $250 puts | Sweep | 41 | 34 | $27K | At bid | Bullish | Notable |
Size above open interest means the trade opened a position larger than everything that existed in the contract the night before. Above ask and below bid are the most aggressive executions. Read the guide: Size versus open interest.
Where the money is aimed
| Expiry | Prints | Premium | Calls share | Net premium |
|---|---|---|---|---|
| 18 Dec 2026 | 1 | $315K | 0% | -$315K |
| 20 Nov 2026 | 4 | $240K | 100% | +$95K |
| 16 Oct 2026 | 4 | $148K | 0% | +$85K |
| 15 Jan 2027 | 2 | $119K | 0% | -$66K |
| 16 Apr 2027 | 3 | $93K | 100% | -$25K |
The most premium, $315K, is aimed at the 18 Dec 2026 expiry; the nearest expiry with unusual prints is 16 Oct 2026.
A print in a contract expiring this week is a view about the next few days, often about a known event; a print months out is a different kind of statement. Read the guide: 0DTE options flow.
The last session, 28 September 2026
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 28 Sep 2026 | AON 16 Apr 2027 $195 calls | Trade | 3 | 0 | $26K | At bid | Bearish |
Every print in AON with its full detail, the live tape, one tap filters and saved screeners: open AON in Options Sentiment Screener.
Price
The live quote and the price chart sit beside the ticker's flow in the app: open AON in Options Sentiment Screener.
Analysts
The most recent analyst targets on file, from 13 firms, have a median of $410, 47.5% above the last close. The last 90 days brought 1 downgrade.
Calls bought at a strike above the average target are a bet that the analysts are too cautious; puts far below the price in a name they like are protection or a strong disagreement. Read the guide: Reading one ticker's flow.
About Aon plc
- Exchange
- NYSE
- Sector
- Financials
- Industry
- Insurance
- Headquarters
- London
- Website
- aon.com
Aon plc provides advice and solutions to clients focused on risk, retirement, and health worldwide. It offers commercial risk solutions, including retail brokerage, cyber, and global risk consulting solutions. The company also provides treaty and facultative reinsurance, as well as capital raising, strategic advice, restructuring, and mergers and acquisitions services.
In the same sector
Flow pages for other Financials names in the S&P 500:
JPM JPMorgan Chase & Co.V Visa Inc.MA Mastercard Inc.BAC Bank of America Corp.MS Morgan StanleyGS Goldman Sachs Group Inc.WFC Wells Fargo & CompanyC Citigroup Inc.
Learn
- What unusual options activity means
- Reading one ticker's flow
- Sweeps, blocks and where a trade printed
- Size versus open interest
- Bullish or bearish, how a print's sentiment is inferred
- The conviction score and whale prints
The live tape for AON with every print's execution detail, one tap filters for calls, puts, sweeps and 0DTE, saved screeners and, for Realtime subscribers, push alerts and no delay. The same screen is in the iOS and Android apps.
Open AON in Options Sentiment Screener