Amphenol Is Down 25%. What History Says About This Sell-Off

Amphenol's 25% Decline: What History Says About This 76-Day Sell-Off

Amphenol Corporation (APH) has reached a Drawdown Severity Score™ of 5.1 as of May 16, 2026. This movement officially transitions the stock from the yellow zone into the red zone, signaling a period of significant price stress relative to its historical norms.

The current drawdown sits at -24.8% from the all-time high of $166.25. Our data shows the stock has been in this continuous decline for 76 days. This duration is more than double the average drawdown duration for this ticker, which typically lasts 33 days.

Understanding the Shift to the Red Zone

The Drawdown Severity Score™ provides a quantitative framework for measuring how unusual a price drop is compared to a stock's past behavior. For Amphenol Corporation (APH), the move to a 5.1 score indicates that the current sell-off has exceeded the typical volatility parameters observed in our database of 351 historical drawdown events.

While the average max drawdown for this stock is -4.6%, the current -24.8% level represents a deviation far beyond the mean. Our data indicates that while minor pullbacks are frequent for this asset, a move into the red zone suggests a structural change in the price trend rather than a routine fluctuation.

The transition from the yellow zone to the red zone happened as the stock failed to find support at previous technical levels. In the 76 days since the peak, the price has consistently failed to reclaim its previous trajectory, leading to the current $125.00 price point.

Historical Context of Major Drawdowns

Looking at the full history of Amphenol Corporation (APH), we have tracked 351 distinct drawdown events. The vast majority of these are shallow and short-lived. However, the current -24.8% drop places this event in a rare category of severity for this specific ticker.

Our data shows that Amphenol Corporation (APH) has dropped by 50% or more only 3 times in its recorded history. These severe events are infrequent, but they offer the only comparable data points for a drawdown of this magnitude.

When the stock enters this level of price compression, the recovery timeline tends to extend significantly. The average duration of these comparable deep drops is 998 days. It is important to note the small sample size of only 3 events when considering these historical averages, as a limited number of data points can skew duration expectations.

The current 76-day duration is still in the early stages when compared to the 998-day average seen in the stock's most extreme historical corrections. The Drawdown Severity Score™ will continue to fluctuate based on whether the price stabilizes at these levels or continues toward the -50% threshold seen in those three historical instances.

Data Methodology and Analysis Limits

This analysis relies exclusively on verified price, drawdown depth, severity scores, and duration data as of May 16, 2026. We use these metrics to provide an objective look at where the stock stands in relation to its own history.

Our data-only approach focuses on the "what" and the "how long" rather than the "why." By removing external narratives, we provide a clear view of the mathematical reality of the stock's current position. We do not incorporate fundamental ratios, earnings reports, or broader market sentiment into this specific drawdown model.

The Drawdown Severity Score™ is a proprietary metric that weights the current percentage drop against the frequency and duration of all 351 prior sell-offs for Amphenol Corporation (APH). This allows us to determine if the current -24.8% move is a standard correction or an outlier event.

What to Watch in the Red Zone

Monitoring the Drawdown Severity Score™ is essential as Amphenol Corporation (APH) navigates the red zone. A move above a 5.1 score would indicate that the sell-off is intensifying further beyond historical norms. Conversely, a decrease in the score would suggest the stock is beginning to stabilize, even if the total drawdown remains deep.

The -24.8% mark is a critical data point. If the stock continues to slide toward the -50% mark seen in the 3 historical major events, the severity score will likely move into the highest tiers of our model. Investors should track whether the 76-day duration begins to approach the 998-day average of those more severe historical cycles.

We will continue to track the exact numbers for Amphenol Corporation (APH) as the data evolves. Any shift in price from the current $125.00 level will immediately impact the severity score and the projected recovery timeline based on the historical data set.