Amkor Technology Is Down 16%. What History Says Now.

Amkor Technology Just Dropped 15% in 19 Days. What History Says.

Amkor Technology, Inc. (AMKR) has entered the yellow zone as of May 21, 2026, following a 15.6% decline from its all-time high of $78.10. Our data shows this move occurred over a 19-day window, pushing the stock out of its previous green zone status. This rapid descent has shifted the risk profile for the ticker based on our proprietary metrics.

Understanding the Drawdown Severity Score™

The current Drawdown Severity Score™ for AMKR is 2.2, which we classify as Moderately Elevated. This score indicates that the stock is now experiencing a level of price contraction that exceeds normal daily volatility. While the stock was recently in the green zone, the breach of the 15% drawdown threshold triggered the transition to the yellow zone.

Our data shows that a severity score of 2.2 reflects a period of heightened risk relative to the stock's typical trading behavior. This score is calculated by comparing the current 15.6% drop against the historical frequency and magnitude of previous pullbacks. As of May 21, 2026, the price of $65.90 represents a significant departure from the peak levels established earlier this month.

Historical Context and Comparable Events

To understand the current move, we look at the total historical drawdown events for AMKR. Our data identifies 17 total drawdown events in the stock's history. On average, AMKR experiences a maximum drawdown of -18.4% with an average duration of 38 days before a recovery begins.

The current 15.6% drop is approaching that historical average maximum. However, when we look specifically at comparable drops where the stock fell 15% or more, our data shows this has only happened 4 times. This is a small sample size, but it provides a specific benchmark for investors monitoring the current decline.

In those 4 comparable instances, the average duration of the drawdown was 135 days. This is significantly longer than the 19 days AMKR has spent in the current drawdown as of May 21, 2026. This suggests that while the depth of the current drop is common for a "comparable" event, the time spent in the drawdown is still in its early stages relative to historical 15% declines.

Data Limits and Analysis Framework

This analysis relies exclusively on verified price, drawdown, severity, and duration data. Our data shows the movement of the stock from a mathematical perspective: we do not incorporate outside events or market narratives into this score. The Drawdown Severity Score™ is a reflection of price action and historical probability, not a fundamental or technical recommendation.

We focus on the drawdown story because it provides a objective view of risk. By looking only at how far the stock has fallen from its high and how long it has stayed there, we avoid the noise of external market commentary. As of May 21, 2026, the data confirms that AMKR is in a moderately elevated risk state based on its 15.6% decline.

What to Watch in the AMKR Drawdown

Investors tracking AMKR should monitor several specific data points to see if the current trend persists or begins to reverse. The first is the 18.4% mark, which represents the average maximum drawdown for this ticker. A move beyond that level would indicate this pullback is becoming more severe than the historical norm.

The second factor is duration. With the current drawdown only lasting 19 days, it remains well below the 135-day average seen in previous 15% drops. If the stock remains below its all-time high of $78.10 for an extended period, the Drawdown Severity Score™ may continue to adjust to reflect the time-based risk of the event.

Finally, watch for any shift in the severity zone. A move back toward the green zone would require a sustained recovery in price, while a deeper drop could push the stock into the red zone. We will continue to monitor these metrics as the price action evolves.