Aon Is Down 19% Over 415 Days. What History Says Now

Aon Is Down 19% in 415 Days. Here Is What History Says

Aon plc (AON) is now down 19% from its all-time high as of June 26, 2026, having just exited the red zone after 415 days. Our proprietary data shows that the Drawdown Severity Score™ has improved to 4.5, officially moving the stock into the yellow zone. In 13 comparable prior drops of 15% or more, the stock took an average of 672 days to fully recover.

Comparing Aon's Recovery to Broader Market Patterns

When a stock transitions from the red zone to the yellow zone, it indicates a structural shift in selling pressure. In our broader database, we frequently observe that large-cap companies entering the yellow zone from below experience a period of price consolidation. This transition represents a reduction in immediate downside momentum, though it does not guarantee an immediate return to previous highs.

For example, other professional service and financial sector peers like Marsh & McLennan (MMC) and Willis Towers Watson (WTW) have historically shown similar stabilization patterns during deep sector-wide pullbacks. When these stocks recover from a severe red zone classification to a 4.5 Drawdown Severity Score™, the worst of the panic-driven selling has typically run its course. The stock then enters a phase where long-term fundamental investors begin to rebuild positions.

Our data shows that a shift into the yellow zone often filters out short-term momentum sellers. The longer duration of these pullbacks means that weak hands have already exited the asset. Consequently, the stock's price action becomes more closely aligned with quarterly earnings performance rather than macro-driven liquidations.

Deconstructing the Numbers: Severity, Price, and Timeline

As of June 26, 2026, Aon plc trades at $328.69, representing a -19.4% drawdown from its peak of $407.61. This current pullback has persisted for 415 days, making it one of the most prolonged corrections in the company's recent history.

To understand the magnitude of this event, we must compare it to the stock's historical baseline. Across 287 total historical drawdown events recorded in our database, the average drawdown for the stock lasted just 47 days. Furthermore, the average maximum drawdown across all historical events was a minor -3.6%.

The current 415-day stretch indicates a major macroeconomic or idiosyncratic repricing that deviates heavily from the company's historical baseline. The Drawdown Severity Score™ has now climbed to 4.5, which represents a "Significant" level of risk but is a marked improvement from the "Severe" red zone.

Understanding the Drawdown Severity Score™ Framework

Our proprietary Drawdown Severity Score™ is a dynamic metric that evaluates a stock's current price decline against its historical volatility, duration, and recovery patterns. A score of 4.5 places Aon plc in the yellow zone, indicating a significant but stabilizing correction. This is a notable improvement from the red zone, which represents severe, high-risk drawdowns that deviate drastically from historical norms.

The yellow zone serves as an intermediate phase. It suggests that while the asset is no longer in freefall, it still carries elevated historical risk compared to its typical operational baseline. For low-beta stocks like Aon plc, remaining in the yellow zone for extended periods is common as the market digests the underlying causes of the decline.

Analyzing the severity score over time allows investors to distinguish between a temporary price dip and a structural change in the stock's risk profile. The transition out of the red zone is a critical milestone, indicating that the asset has begun to establish a potential price floor.

Historical Recovery Patterns for Aon plc

Since 2006, Aon plc has dropped by 15% or more only 13 times. When the stock experiences a decline of this magnitude, the recovery process is historically slow. The average duration of these comparable deep drops is 672 days.

This means that while the exit from the red zone is a positive technical sign, history suggests that the remaining path to a full recovery can take several more months. With 415 days already elapsed in the current drawdown, the stock is roughly 61% of the way through the historical average duration of 672 days for drops of this scale.

The average duration of 672 days for drops exceeding 15% highlights the defensive nature of the insurance brokerage industry. Unlike high-growth technology stocks that can experience rapid V-shaped recoveries, professional services firms often experience slower, more methodical recoveries. This is because their revenue growth is tied to corporate spending budgets and commercial insurance pricing cycles, which change gradually over several quarters.

Valuation Context and Historical Multiples

To put this -19.4% drawdown into perspective, we can look at the company's valuation multiples as of 2026-06-25. The Price-to-Sales (P/S) ratio stands at 3.9, which sits in the 65th percentile of its own daily history since 2006-06-26, placing it slightly above its historical median of 2.7. Conversely, the EV-to-EBITDA (EV/EBITDA) ratio is 12.2, positioning it in the 28th percentile of its own daily history since 2006-06-26, well below its historical median of 14.3. This contrast reveals that while the price decline has compressed the company's enterprise value relative to core earnings, its revenue-based multiple remains in the upper half of its historical distribution.

Operational Catalysts and Recent News Driving the Shift

Recent fundamental developments have played a key role in lifting the stock out of its deepest drawdown levels. According to TIKR.com, Aon recently delivered four straight quarterly earnings beats, drawing closer attention from analysts as the stock stabilized near the $331 level. These consistent operational results have helped rebuild investor confidence after a challenging period.

Additionally, a report by Yahoo Finance highlighting Diamond Hill Capital's Select Strategy noted that the investment firm downplayed concerns surrounding potential AI disruption to Aon's core business model. This reassurance helped alleviate long-term technological anxiety that had previously weighed on the stock.

Meanwhile, Zacks Investment Research reported on unusual activity in the options market, questioning whether traders are positioning for an impending volatility spike in the stock. This combination of robust earnings, alleviated disruption fears, and options market dynamics has helped support the price recovery, enabling the stock to exit the red zone.

Assessing the Remaining Path to the Green Zone

To fully recover and reach its all-time high of $407.61, the stock must climb 24.0% from its current price of $328.69. The transition from the red zone to the yellow zone is the first major step in this process. To enter the green zone, which signifies minimal drawdown severity, the Drawdown Severity Score™ must continue to decrease as the price approaches its former peak.

Investors tracking the stock should monitor whether it can maintain its position in the yellow zone or if macroeconomic headwinds will push it back into a more severe drawdown status. Historically, periods of consolidation in the yellow zone are common before a stock either mounts a full recovery or resumes its downward trajectory.

We will continue to track these metrics daily. Monitoring the severity score provides a clear, quantitative framework for assessing whether the stock's recovery is sustainable or if risk levels are rising once again.