Aon's Trading Volume Drops 31% to $283 Million, Cyber Risk Insurance Claims Rise 22% in North America

On June 18, 2025, Aon's trading volume reached $283 million, marking a 31.07% decrease from the previous day. The stock price of Aon dropped by 0.04%.

Aon's 2025 Global Cyber Risk Report underscores the significant impact of cyber events on shareholder value, revealing that reputation risk events can lead to an average 27% drop in shareholder value. This finding builds on Aon's 2023 research, which showed that major cyber incidents led to an average 9% decline in shareholder value over the following period.

In North America, cyber risk insurance claims rose by 22%, while ransomware claims payouts declined by 77%. The insurance industry demonstrated resilience despite the continued impact of ransomware. The complexity of supply chain risk persisted, and privacy risk increased amid an increasingly litigious environment. Insurer confidence was restored in most industries, with U.S. buyers achieving a 7% premium decrease in Q1 2025, while Canadian clients saw a 15% decrease. Underwriting rigor became more established, and clients made significant strides in improving critical security controls and domains.

Systemic cyber security events across North America highlighted the compounding risk associated with growing technology interdependencies. Major events, such as the ransomware breach of a significant U.S. healthcare payments technology provider and the glitched CrowdStrike Cloud software update, contributed to rising cyber insurance claims. Aon’s U.S. Cyber Solutions broking data revealed 1,228 reported incidents across broking clients in 2024, an increase of 22%.

Despite the turbulence of systemic cyber events and rising claims, the financial impact on the insurance industry was mitigated due to purchasing trends, program structure changes, and business continuity measures by insureds. The industry remains on alert, with the past year’s events serving as a lesson on managing risks. Organizations across North America took cyber risk very seriously in 2024, with improvements in risk scores across key domains. Insurer confidence was restored in many industries as clients focused on critical security controls and domains.

The impact of ransomware diminished in 2024, with the global average ransomware payment amount declining by 77% compared to the same period in 2023. More robust security controls and business continuity planning made it more difficult for attackers to deploy successful attacks. Organizations also invested in modeling their cyber exposure across vendors, although third-party risk continued to be one of the lowest-scoring risk domains for Aon clients in the U.S. and Canada.

As organizations strengthened their controls, competition soared across the cyber insurance industry. Despite the increase in claims frequency in 2024, buyers’ market conditions continued through the year in a well-capitalized and competitive environment. On average, U.S. buyers achieved a seven percent premium decrease in Q1 2025. The Canadian market saw accelerated softening through 2024 and ultimately realized a 15 percent decrease year-over-year. Insureds became more sophisticated, harnessing cyber modeling to evaluate their purchasing decisions and protect their balance sheets.

With intense geopolitical volatility marking the start of 2025, cyber risk is anticipated to continue to heighten. Insurance companies are expected to bolster investment in the underwriting process and risk modeling to better understand the risk ecosystem and potential exposure. Privacy liability is another risk that insurers and organizations alike must manage, with recent cyber security incidents resulting in the unauthorized exfiltration of personal information.