KLAC Is Down 29%. What History Shows

KLAC's 15-Day Drop: What History Says About the Sell-Off

KLA Corporation (KLAC) is down -29.5% from its all-time high as of July 17, 2026, and has been falling for approximately 15 days. Our data shows the Drawdown Severity Score™ stands at 5.1, placing the stock in the Strong category within the red zone. In 13 comparable prior drops of 25% or more, the stock took an average of 855 days to recover.

Analyzing the Move to the Red Zone

The rapid decline in KLA Corporation shares has shifted the stock from the yellow zone directly into the red zone. This transition indicates that the downward momentum has escalated past standard market volatility. Over a brief 15-day window, the stock fell from its peak levels to its current price of $212.75, representing a -29.5% drawdown from its all-time high of $301.71.

According to reports from Yahoo Finance Singapore, KLA Corporation has experienced notable daily declines even during sessions where the broader market showed signs of improvement. This decoupling from the general market suggests that idiosyncratic factors are weighing heavily on the company. The speed of this transition highlights how quickly sentiment can shift in the highly cyclical semiconductor equipment industry.

How KLA Corporation Behaves in Deep Drawdowns

To understand the significance of this move, we must look at the historical data. KLA Corporation has a long trading history with numerous cycles of expansion and contraction. Our database has tracked a total of 222 drawdown events for this asset.

The average maximum drawdown across all 222 historical events is -7.4%, with an average duration of 64 days. The current sell-off of -29.5% is nearly four times deeper than the historical average drawdown. This indicates that the current environment is far more severe than a typical pullback for this stock.

Our data shows that KLA Corporation has dropped by 25% or more only 13 times in its history. When the stock enters a drawdown of this magnitude, recovery is rarely swift. Historically, the average duration of these comparable deep drops is 855 days before the stock reclaims its previous high.

Historical Drawdown Durations in Perspective

When examining the 222 total historical drawdown events, a clear pattern emerges. The vast majority of these pullbacks are shallow, with an average max drawdown of -7.4% and a quick recovery duration of 64 days. These minor events represent standard market noise and normal profit-taking.

In contrast, the 13 deep drawdowns exceeding 25% represent structural shifts in market sentiment or industry demand. The jump in average recovery time from 64 days to 855 days shows that once KLA Corporation enters this deeper territory, the recovery process is historically slow. This historical perspective is crucial for understanding the risk profile associated with the current red zone classification.

Understanding Semiconductor Equipment Cycles

KLA Corporation operates in a highly specialized niche of the semiconductor supply chain. The company is a global leader in process control, metrology, and inspection systems. These systems are critical for semiconductor manufacturers to monitor yield and detect defects during the fabrication process.

Because chip manufacturing equipment is capital-intensive, KLA's revenues are highly sensitive to capital expenditure cycles of major chipmakers. When global semiconductor demand slows down, chip manufacturers often delay or reduce their orders for new inspection equipment. This cyclicality frequently leads to sharp drawdowns in the stock price during industry downturns.

Recent industry coverage from 24/7 Wall St. compared Applied Materials and KLA Corporation as key AI infrastructure plays. While artificial intelligence continues to drive long-term demand for advanced chip manufacturing, short-term capacity adjustments can create temporary demand air pockets. This dynamic can trigger rapid sell-offs as investors adjust their growth expectations.

Metrology and inspection are unique because they are utilized at every step of the manufacturing process. As chip nodes shrink to 3nm and below, the complexity of manufacturing increases exponentially. This makes KLA's systems even more critical, as even tiny defects can ruin entire silicon wafers. However, during industry cyclical downturns, chipmakers often freeze expansion plans, directly impacting KLA's order backlog.

Valuation and Industry Headwinds

As of 2026-07-12, the Price-to-Sales (P/S) ratio for KLA Corporation stands at 23.3, which ranks in the 100th percentile of its own daily history since 2006-07-10. This is historically high compared to its historical median P/S of 4.2. Similarly, the EV-to-EBITDA (EV/EBITDA) ratio is 52.9, placing it in the 98th percentile of its own daily history since 2006-07-10, well above its historical median of 14.5. This shows that despite the -29.5% price drawdown, the valuation multiples remain elevated relative to the company's own historical range.

Investors must weigh these historically elevated multiples against the current operational challenges. Analysis from GuruFocus noted that KLA Corporation recently experienced a 3.0% single-day drop, pointing to its GF Score of 84 as a measure of its solid financial strength but highlighting near-term headwinds. Additionally, Quiver Quantitative reported a lobbying update showing $290,000 of disclosed lobbying expenditures, highlighting the regulatory complexities the firm navigates.

Comparisons on TradingView between Teradyne and KLA Corporation also show that investors are actively debating which AI infrastructure stock presents a more robust risk profile. With valuation percentiles near historical highs, the margin of error for operational execution is narrow. This high valuation hurdle may explain why the stock has reacted so sharply over the last 15 days.

The Mechanics of Drawdown Recovery

Recovering from a deep drawdown requires a disproportionately larger gain to return to even. For KLA Corporation to climb from its current price of $212.75 back to its all-time high of $301.71, it must achieve a gain of 41.8%.

This mathematical reality is why deep drawdowns often take years to resolve. The historical average of 855 days for recoveries from 25% drops reflects the time required for industry cycles to turn and for earnings growth to catch up with previous peak valuations.

Our historical data indicates that patience is typically required when dealing with a severity score of 5.1. The Drawdown Severity Score™ of 5.1 is not just an arbitrary number. It is a proprietary calculation that compares the current peak-to-trough decline against every historical correction the asset has experienced. By analyzing the speed of the decline alongside its depth, the severity score helps identify when a drop has exceeded normal market noise. In this case, the transition from the yellow zone to the red zone in just 15 days indicates an unusually sharp acceleration in selling pressure.

Key Drivers to Monitor Moving Forward

Several upcoming events and data points could influence KLA Corporation's trajectory in the coming weeks. A major catalyst is the upcoming earnings report, which Seeking Alpha contributors have highlighted as a pivotal event for the stock. Analysts will be closely watching management's guidance on wafer fabrication equipment spending for the remainder of the year.

Another key factor is the capital expenditure plans of major foundry customers. If leading chip manufacturers announce cuts to their expansion plans, KLA Corporation could face further downward pressure. Conversely, if demand for advanced packaging and high-bandwidth memory continues to accelerate, it could help stabilize the stock.

For the severity score to improve, KLA Corporation must show signs of price stabilization. A transition back to the yellow zone would require a sustained upward trend that reduces the current drawdown percentage. Investors should watch the daily closing prices to see if support forms around the $212.75 level or if the stock tests lower historical support levels. We will continue to monitor the Drawdown Severity Score™ to see if the stock stabilizes in the red zone or begins a recovery toward the yellow zone.