MPWR Is Down 27% in 81 Days. What History Says.

MPWR Is Down 27% in 81 Days. What History Says.

Monolithic Power Systems, Inc. (MPWR) is now down 27% from its all-time high as of September 11, 2026, having just exited the red zone after 81 days in drawdown. The Drawdown Severity Score™ has improved to 4.9, placing the stock in the yellow zone. In 13 comparable prior drops of 25% or more, the stock took an average of 375 days to recover.

Where It Was: Peak Severity and Recent Red Zone Exit

Our data shows that MPWR has spent the last 81 days locked in a deep price contraction, during which it crossed into the high-risk red zone. The red zone represents the most severe tier in our proprietary tracking model, indicating that the velocity and depth of the decline had reached historically extreme levels. The stock's recent transition out of this zone and into the yellow zone indicates a stabilization in the rate of decline, though the stock remains far below its peak.

The move to a yellow zone rating indicates that the intensity of the selling pressure has moderated. The Drawdown Severity Score™ of 4.9 is classified as "Significant", marking a distinct shift from the previous high-risk phase. This transition is a key technical milestone, but it does not mean the drawdown is over.

Exiting the red zone typically occurs when a stock establishes a local price floor, preventing further immediate erosion of its market value. For MPWR, this stabilization has allowed the severity score to cool from its peak levels, but the stock still carries a significant risk profile. Investors tracking the asset should note that a transition to the yellow zone represents a pause in the downward momentum rather than an immediate trend reversal.

The red zone is triggered when a stock's drawdown depth and velocity exceed standard statistical thresholds, signaling an acute sell-off. For MPWR, the descent into this zone was marked by rapid price depreciation over the initial weeks of the current 81-day period. When a stock exits this zone, it indicates that the rate of decline has flattened, allowing the Drawdown Severity Score™ to retreat below the critical threshold of 5.0. This stabilization is often the first step in a multi-stage recovery process, though historical data shows that consolidation within the yellow zone can persist for an extended period.

Current Position and Drawdown Severity Score™ Context

As of September 11, 2026, the current price of MPWR is $1234.46, which represents a 27.0% decline from its all-time high of $1689.89. The current severity score of 4.9 places the stock squarely in the yellow zone, which denotes a significant drawdown that warrants close monitoring. This score is calculated by comparing the current depth and duration of the pullback against the asset's entire trading history.

An 81-day duration for a 27.0% drop is a rapid contraction compared to the stock's historical behavior. The severity score of 4.9 reflects both the speed and the depth of this move relative to the asset's entire trading history. Understanding where this drawdown sits in relation to historical baselines is essential for evaluating the current risk profile.

The absolute decline from the peak stands at $455.43 per share. This scale of contraction is highly unusual for MPWR, which typically experiences much shallower pullbacks. The current position shows that while the immediate panic selling has subsided, the stock still has a substantial distance to travel to reclaim its previous high.

The Drawdown Severity Score™ of 4.9 indicates that while the stock has moved out of the highest-risk red zone, it remains in a vulnerable position. A score of 4.9 is classified as Significant, meaning that the current drawdown is still deeper and more prolonged than the vast majority of historical pullbacks for this asset. In practical terms, this score serves as a warning that the stock has not yet returned to a normal, low-risk trading regime. The yellow zone acts as a transition phase, and the stock's ability to hold the current $1234.46 level will determine whether it can continue its path toward the green zone or if it will regress.

Historical Comparison: How Prior Comparable Recoveries Evolved

To understand what a 27.0% drawdown means for MPWR, we must examine the stock's historical record. Our database has tracked a total of 186 historical drawdown events for this asset. Across all 186 events, the average max drawdown is -6.6%, and the average drawdown duration is 40 days.

The current 27.0% contraction is vastly different from a typical pullback. MPWR has dropped 25% or more from an all-time high only 13 times in its history. When the stock enters a drawdown of this depth, the recovery process is historically prolonged, averaging 375 days to return to its previous peak.

The table highlights the scale of the current contraction. While a standard pullback for MPWR resolves in just over a month, a drop exceeding 25% has historically taken more than a year to fully recover. The current 81-day duration suggests that the stock is still in the early stages of a historically long recovery cycle.

Of the 186 total historical drawdown events, the 13 occurrences that crossed the 25% threshold represent just 7.0% of all pullbacks. This indicates that a drawdown of this magnitude is an outlier event for MPWR. When these deep contractions occur, the historical data shows that the stock rarely stages a rapid V-shaped recovery, instead requiring an average of 375 days to work through the overhead supply and reclaim its previous highs.

The 375-day average recovery time for drawdowns exceeding 25% is a key metric for long-term risk framing. This duration is calculated from the initial peak to the day the stock officially reclaims that peak. Because the current drawdown has only lasted 81 days, the stock is technically early in the historical recovery window. Historically, during these 13 major contractions, MPWR spent several months forming a bottom before embarking on a sustained upward trend. This historical precedent suggests that patience is often required when dealing with drawdowns of this magnitude, as the structural damage to the price chart takes time to repair.

Valuation Context Within Historical Ranges

To put this price movement into perspective, we look at the asset's valuation multiples as of 2026-09-11. The Price-to-Sales ratio (P/S) stands at 18.5, which is in the 87th percentile of its own daily P/S record since 2006-09-11, well above its historical median of 8.8. Similarly, the EV-to-EBITDA ratio (EV/EBITDA) is 59.7, placing it in the 76th percentile of its own daily EV/EBITDA history since 2006-09-11, compared to a historical median of 44.3.

Data Limits and Methodology

Our analysis relies strictly on verified price, drawdown, and severity data. We do not incorporate external news, earnings releases, macroeconomic events, or market sentiment into our models. This approach ensures that our assessments remain entirely objective and free from speculative bias.

By focusing solely on price action and historical comparisons, we provide a clean look at how the asset is behaving relative to its own past. The Drawdown Severity Score™ is a purely mathematical representation of risk based on historical depth and duration. It does not attempt to predict future market direction or corporate performance.

Relying on price-based metrics allows us to avoid the narrative-driven traps that often cloud financial analysis. While external commentators may attempt to explain price movements through various fundamental or macroeconomic lenses, our data-first approach focuses on the structural reality of the drawdown itself. This systematic methodology provides a consistent framework for comparing the current contraction to historical precedents.

What to Watch: Key Severity Thresholds

For investors tracking MPWR, several key data points will signal whether the recovery is gaining traction or if the stock is slipping back toward higher risk zones. A renewed decline that pushes the stock deeper than its current -27.0% level would likely cause the severity score to rise back toward the red zone. Specifically, a drop to $1182.92 would mark a 30.0% drawdown, a level that would significantly increase the historical risk metrics.

Conversely, a sustained upward move would continue to lower the severity score. A transition from the yellow zone to the green zone would require a substantial reduction in the remaining drawdown. For instance, reclaiming the $1351.91 level would reduce the drawdown to 20.0%, which would mark a major technical improvement.

Because a 27.0% drawdown requires a 36.9% rally to break even and reach the all-time high of $1689.89, the recovery process is mathematically demanding. Monitoring the 81-day duration and the $1234.46 price level relative to the $1689.89 all-time high will provide clear, objective indicators of the stock's technical health.