MKSI
MKS Instruments Inc. Technology - Semiconductor Equipment Investor Relations →
MKS Instruments Inc. (MKSI) closed at $406.37 as of 2026-06-19, trading 232.6% above its 200-week moving average of $122.19. The stock moved further from the line this week, up from 194.7% last week. With a 14-week RSI of 86, MKSI is in overbought territory.
Trading volume is running at 1.3x of its 14-week average, which is in the normal range. The balance between buying and selling volume (1.18 ratio) is neutral — neither side is clearly dominating.
Over the past 1372 weeks of data, MKSI has crossed below its 200-week moving average 26 times. On average, these episodes lasted 19 weeks. Historically, investors who bought MKSI at the start of these episodes saw an average one-year return of +6.7%.
With a market cap of $27.4 billion, MKSI is a large-cap stock. The company generates a free cash flow yield of 1.8%. Return on equity stands at 12.7%. The stock trades at 9.7x book value.
Over the past 26.3 years, a hypothetical investment of $100 in MKSI would have grown to $982, compared to $792 for the S&P 500. That represents an annualized return of 9.1% vs 8.2% for the index — confirming MKSI as a market-beating investment and the kind of quality company where buying during 200-week moving average touches has historically been rewarded.
Free cash flow has been growing at a 10.8% compound annual rate, with 4 consecutive years of positive cash generation.
Business Health
Annual financials — how the underlying business has performed over the past several years.
Cash Flow Free cash flow & net income ($M)
Revenue Annual revenue ($M) — business growth proxy
Total Debt Balance sheet debt ($M)
ROIC Return on invested capital (%)
FCF Yield Free cash flow / market cap (%) — Yartseva signal
Gross Margin Pricing power & competitive moat (%)
Shares Outstanding Buybacks vs dilution (millions)
Growth of $100: MKSI vs S&P 500
Monthly data normalized to $100 at start. Vertical dashed lines mark 200-week MA touches.
What Happens After MKSI Crosses Below the Line?
Across 26 historical episodes, buying MKSI when it crossed below its 200-week moving average produced an average return of +8.3% after 12 months (median +2.0%), compared to +6.3% for the S&P 500 over the same periods. 50% of those episodes were profitable after one year. After 24 months, the average return was +19.7% vs +15.8% for the index.
Each line shows $100 invested at the moment MKSI crossed below its 200-week MA. Bold blue = stock average. Gray dashed = S&P 500 average over same periods.
Bean Score Experimental
The Bean Score measures how far a stock's free cash flow yield has deviated from its own quarterly baseline, normalized by the stock's historical behavior. Between earnings dates, FCF is constant — so the score is purely a function of stock price. The levels below show at what prices MKSI would reach each dislocation threshold.
Dislocation Price Levels
Prices where MKSI's Bean Score would hit each σ threshold. Valid until next earnings report: 2026-08-05.
| Level | σ | Price | Signal |
|---|---|---|---|
| Deep Value | +2σ | $244.48 | Unusually cheap — potential buy zone |
| Value | +1σ | $290.23 | Cheap vs. own history |
| Fair Value | +0σ | $357.03 | Historical mean behavior |
| Expensive | -1σ | $463.78 | Expensive vs. own history |
| Deep Expensive | -2σ | $661.59 | Unusually expensive — potential trim zone |
Quarterly FCF & Yield Trailing twelve-month free cash flow and yield at each quarter end
Signal Accuracy Collecting Data
The Bean Score system is accumulating weekly data to validate signal accuracy. After 13+ weeks of history, this section will display win rates and average returns for each σ threshold crossing — answering the question: "When this score says cheap or expensive, does the price subsequently move in the expected direction?"
Theoretical framework — not backtested or forward-tested. The Bean Score uses trailing twelve-month free cash flow yield as a dislocation identifier. It measures whether the market has pushed a stock's yield unusually far from its own baseline behavior. These levels are reference points for identifying potential swing trade opportunities, not buy/sell signals. FCF values update quarterly with earnings; between reports, all movement is price-driven.
Dislocation Scores Experimental
Each score measures deviation from MKSI's own historical baseline — the same idea as the Bean Score, applied to different fundamentals. Positive means cheaper or more dislocated than this stock's norm. Scores marked σ are normalized by the stock's own variability; pp values are simple deltas from its recent baseline.
Theoretical framework — not backtested. These scores describe how unusual today's readings are for this specific company. They are starting points for research, not buy or sell signals. Annual-statement scores (buyback, accruals, FCF vs history) rest on only ~4 yearly data points and are deltas, not sigmas.
Historical Touches
MKSI has crossed below its 200-week MA 26 times with an average 1-year return of +6.7% after recovery.
| Crossed Below | Recovered | Weeks | Max Depth | 1-Year Return | Return Since Touch |
|---|---|---|---|---|---|
| Jul 2000 | Aug 2000 | 4 | 36.0% | +1.4% | +1961.5% |
| Sep 2000 | Apr 2001 | 31 | 46.4% | -35.2% | +1712.1% |
| Jun 2001 | Dec 2001 | 27 | 39.8% | -25.5% | +1889.8% |
| Jan 2002 | Feb 2002 | 6 | 8.4% | -31.7% | +1915.7% |
| Jun 2002 | Aug 2003 | 63 | 60.7% | -23.0% | +1847.6% |
| Sep 2003 | Oct 2003 | 5 | 13.6% | -32.8% | +2125.4% |
| Apr 2004 | May 2004 | 6 | 12.6% | -33.9% | +2173.4% |
| Jun 2004 | Jan 2006 | 82 | 40.1% | -18.9% | +2186.0% |
| Jul 2006 | Jul 2006 | 2 | 4.4% | +41.8% | +2554.1% |
| Aug 2006 | Aug 2006 | 1 | 0.9% | +21.1% | +2526.0% |
| Jul 2007 | Aug 2007 | 1 | 0.1% | +1.7% | +2297.5% |
| Sep 2007 | Feb 2008 | 24 | 18.2% | +7.3% | +2366.7% |
| Jul 2008 | Jul 2008 | 1 | 0.5% | -3.9% | +2340.0% |
| Sep 2008 | Apr 2010 | 81 | 40.9% | -5.8% | +2338.8% |
| May 2010 | Jun 2010 | 6 | 3.4% | +37.5% | +2434.8% |
| Jun 2010 | Jul 2010 | 3 | 7.0% | +47.5% | +2590.1% |
| Aug 2010 | Oct 2010 | 9 | 10.2% | +23.7% | +2549.9% |
| Dec 2018 | Dec 2018 | 1 | 7.0% | +91.4% | +624.6% |
| Mar 2020 | Apr 2020 | 3 | 8.5% | +131.9% | +469.0% |
| Apr 2022 | May 2022 | 3 | 3.0% | -27.3% | +267.0% |
| May 2022 | May 2022 | 1 | 0.3% | -24.8% | +257.6% |
| Jun 2022 | Aug 2022 | 8 | 18.6% | -9.6% | +272.6% |
| Aug 2022 | Feb 2024 | 77 | 44.2% | -14.7% | +286.0% |
| Apr 2024 | Apr 2024 | 2 | 10.5% | -40.6% | +281.6% |
| Jul 2024 | Jan 2025 | 24 | 16.4% | -12.2% | +286.7% |
| Jan 2025 | Sep 2025 | 32 | 46.3% | +109.6% | +262.4% |
| Average | 19 | — | +6.7% | — |
Frequently Asked Questions
Is MKSI below its 200-week moving average?
No. MKS Instruments Inc. (MKSI) is currently 232.6% above its 200-week moving average of $122.19. It would need to fall to $122.19 to cross below the line.
What is MKSI's 200-week moving average price?
MKS Instruments Inc.'s 200-week moving average is $122.19 as of 2026-06-19. This is the average weekly closing price over roughly the last 4 years, and it acts as a long-term trend line. When a stock drops below this level, it can signal that the price has fallen far enough from the long-term trend to attract value-oriented investors.
What happens when MKSI drops below its 200-week moving average?
MKSI has crossed below its 200-week moving average 26 times in our data. On average, buying at that moment produced a one-year return of +6.7%. These dips have historically been decent entry points. These episodes lasted 19 weeks on average.
Is MKSI a good value right now?
Here's what our data says about MKSI as of 2026-06-19: The stock is above its 200-week moving average, so it doesn't currently meet our primary signal. The 14-week RSI is 86 (overbought). Free cash flow yield is 1.8%. Return on equity is 12.7%. Price-to-book is 9.7x. This is not a buy or sell recommendation — always do your own research.
How does MKSI compare to the S&P 500?
Over the past 26.3 years, $100 invested in MKSI would have grown to $982, compared to $792 for the S&P 500. That's 9.1% annualized vs 8.2% for the index. MKSI has outperformed the broader market over this period.
Does MKSI pay a dividend?
Yes. MKS Instruments Inc. currently pays a dividend yield of 27.00%.
Not financial advice. This is an educational tool. Past performance does not guarantee future results. Do your own research before making investment decisions.
Data as of week of 2026-06-19