MKSI
MKS Instruments Inc. Technology - Semiconductor Equipment Investor Relations →
MKS Instruments Inc. (MKSI) closed at $297.45 as of 2026-07-31, trading 129.0% above its 200-week moving average of $129.88. The stock is currently moving closer to the line, down from 155.6% last week. The 14-week RSI sits at 53, indicating neutral momentum.
Trading volume is running at 1.7x of its 14-week average, which is in the normal range. The balance between buying and selling volume (0.83 ratio) is neutral — neither side is clearly dominating.
Over the past 1378 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 $20.1 billion, MKSI is a large-cap stock. The company generates a free cash flow yield of 2.4%. Return on equity stands at 12.7%. The stock trades at 7.1x book value.
Over the past 26.4 years, a hypothetical investment of $100 in MKSI would have grown to $719, compared to $791 for the S&P 500. MKSI has returned 7.8% annualized vs 8.1% for the index, underperforming the broader market over this period.
Free cash flow has been growing at a 10.8% compound annual rate, with 4 consecutive years of positive cash generation.
Business Health
Annual financials — how the underlying business has performed over the past several years.
Cash Flow Free cash flow & net income ($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 +6.2% 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 +26.3% vs +16.6% 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 (date TBD — last report: 2026-03-31).
| Level | σ | Price | Signal |
|---|---|---|---|
| Deep Value | +2σ | $251.68 | Unusually cheap — potential buy zone |
| Value | +1σ | $296.29 | Cheap vs. own history |
| Fair Value | +0σ | $360.14 | Historical mean behavior |
| Expensive | -1σ | $459.06 | Expensive vs. own history |
| Deep Expensive | -2σ | $632.89 | 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% | +1409.0% |
| Sep 2000 | Apr 2001 | 31 | 46.4% | -35.2% | +1226.4% |
| Jun 2001 | Dec 2001 | 27 | 39.8% | -25.5% | +1356.5% |
| Jan 2002 | Feb 2002 | 6 | 8.4% | -31.7% | +1375.4% |
| Jun 2002 | Aug 2003 | 63 | 60.7% | -23.0% | +1325.6% |
| Sep 2003 | Oct 2003 | 5 | 13.6% | -32.8% | +1529.0% |
| Apr 2004 | May 2004 | 6 | 12.6% | -33.9% | +1564.0% |
| Jun 2004 | Jan 2006 | 82 | 40.1% | -18.9% | +1573.2% |
| Jul 2006 | Jul 2006 | 2 | 4.4% | +41.8% | +1842.7% |
| Aug 2006 | Aug 2006 | 1 | 0.9% | +21.1% | +1822.2% |
| Jul 2007 | Aug 2007 | 1 | 0.1% | +1.7% | +1654.9% |
| Sep 2007 | Feb 2008 | 24 | 18.2% | +7.3% | +1705.5% |
| Jul 2008 | Jul 2008 | 1 | 0.5% | -3.9% | +1686.0% |
| Sep 2008 | Apr 2010 | 81 | 40.9% | -5.8% | +1685.1% |
| May 2010 | Jun 2010 | 6 | 3.4% | +37.5% | +1755.4% |
| Jun 2010 | Jul 2010 | 3 | 7.0% | +47.5% | +1869.1% |
| Aug 2010 | Oct 2010 | 9 | 10.2% | +23.7% | +1839.6% |
| Dec 2018 | Dec 2018 | 1 | 7.0% | +91.4% | +430.4% |
| Mar 2020 | Apr 2020 | 3 | 8.5% | +131.9% | +316.5% |
| Apr 2022 | May 2022 | 3 | 3.1% | -27.3% | +168.6% |
| May 2022 | May 2022 | 1 | 0.3% | -24.8% | +161.8% |
| Jun 2022 | Aug 2022 | 8 | 18.6% | -9.6% | +172.7% |
| Aug 2022 | Feb 2024 | 77 | 44.2% | -14.7% | +182.6% |
| Apr 2024 | Apr 2024 | 2 | 10.5% | -40.6% | +179.3% |
| Jul 2024 | Jan 2025 | 24 | 16.4% | -12.2% | +183.0% |
| Jan 2025 | Sep 2025 | 32 | 46.3% | +109.6% | +165.2% |
| Average | 19 | — | +6.7% | — |
Frequently Asked Questions
Is MKSI below its 200-week moving average?
No. MKS Instruments Inc. (MKSI) is currently 129.0% above its 200-week moving average of $129.88. It would need to fall to $129.88 to cross below the line.
What is MKSI's 200-week moving average price?
MKS Instruments Inc.'s 200-week moving average is $129.88 as of 2026-07-31. 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 2026-07-31: The stock is above its 200-week moving average, so it doesn't currently meet our primary signal. The 14-week RSI is 53. Free cash flow yield is 2.4%. Return on equity is 12.7%. Price-to-book is 7.1x. 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 26.4 years, $100 invested in MKSI would have grown to $719, compared to $791 for the S&P 500. That's 7.8% annualized vs 8.1% for the index. MKSI has underperformed the broader market over this period.
Does MKSI pay a dividend?
Yes. MKS Instruments Inc. currently pays a dividend yield of 34.00%.
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 2026-07-31