ATLAS News · Companies

Blackstone and Aon Launch Cortina, an Insurer for Insurers

· 1 sources

Stock Titan reports Blackstone and Aon launched Cortina, with a dividend for participating Aon clients and underwriting expected to begin Jan. 1, 2027.

What happened

Stock Titan reports that Blackstone and Aon have launched a new insurer designed to serve other insurers. The venture is called Cortina.

According to Stock Titan, participating Aon clients will receive a dividend linked to Cortina's share of their programs. Underwriting is expected to start on Jan. 1, 2027.

The start of underwriting remains subject to final approval from Lloyd's, per the same report.

Context

Aon is a global professional services firm that advises on risk and insurance, while Blackstone is a large alternative asset manager.

Why it matters

The launch shows Blackstone and Aon working together in the insurance space, which may be of interest to those following either company.

Stocks in this story

Price changes are shown for the trading day of the story and are a coincidence in time, not proof that the news caused them. Figures are ATLAS data from our database.

BlackstoneBX

+0.72%

Financial Services · NYSE

Latest price during the session
$120.68+0.72% vs. previous close ($119.82)
Fair value (ATLAS)
$136.70Fair range: $123.03 to $150.37The price ($120.68) is 11.7% below that figure.
Chance of a rise in 1 month
49%Probability of closing higher than today within 21 sessions.Normal range: half of the scenarios end between $111.33 and $130.11; 9 in 10, between $96.97 and $149.38.
See the full ATLAS analysis of Blackstone →

Closing prices, fair value and probabilities: ATLAS own data. How we calculate fair value.

Sources

ATLAS writes its own summaries from the reporting of these outlets. Each link opens the original publisher.

  1. Blackstone and Aon launch an insurer for insurers. Participating clients get a dividend. · Stock Titan · November 6, 2026

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