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MKSI vs. SKHY: MKS vs. SK hynix Stock Comparison

How do MKS (MKSI) and SK hynix (SKHY) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

MKS (MKSI) and SK hynix (SKHY) both belong to the Semiconductors & Semiconductor Equipment industry, though MKSI is classified under Semiconductor Materials & Equipment while SKHY falls under Semiconductors.

MKS (MKSI) has been public since March 30, 1999, giving it decades of market history across multiple cycles, while SK hynix (SKHY) listed only on July 10, 2026 and lacks comparable through-cycle data.

MKS (MKSI) trades as ordinary local shares, while SK hynix (SKHY) trades as an ADR — compare with FX exposure, depositary-program fees, and dividend-withholding-tax differences in mind.

Company profile comparison for MKS (MKSI) and SK hynix (SKHY)
Profile ItemMKSISKHY
NameMKS Inc.SK hynix Inc.
Country/RegionUnited StatesSouth Korea
GICS SectorInformation TechnologyInformation Technology
GICS Industry GroupSemiconductors & Semiconductor EquipmentSemiconductors & Semiconductor Equipment
GICS IndustrySemiconductors & Semiconductor EquipmentSemiconductors & Semiconductor Equipment
GICS Sub-IndustrySemiconductor Materials & EquipmentSemiconductors
Market Capitalization13.00 billion USD897.97 billion USD
CurrencyUSDUSD
ExchangeNasdaqNasdaq
Listing DateMarch 30, 1999July 10, 2026
Security TypeCommon StockADR

Price Performance

Cumulative Growth

MKSI
SKHY
GSPC
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MKS (MKSI) vs. SK hynix (SKHY), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for MKS (MKSI) and SK hynix (SKHY). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for MKS (MKSI) and SK hynix (SKHY). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
Total Return (1Y)35.07%--
Total Return (3Y, Annualized)46.46%--
Total Return (5Y, Annualized)6.02%--

Risk Profile

Drawdown History

MKSI
SKHY
GSPC
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MKS (MKSI) vs. SK hynix (SKHY), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for MKS (MKSI) and SK hynix (SKHY). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
Volatility (1Y, Annualized)62.92%101.44%
Beta (5Y)2.125.36
Max Drawdown (5Y)-66.57%-37.62%
Avg. Volume (3M)1.36M20.78M

Risk-Adjusted Performance

Risk-Return Positioning

Both MKSI and SKHY need 1-year volatility and 1-year return to plot risk-return positioning.

Risk-Adjusted Metrics

Risk-adjusted metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
Sharpe Ratio (1Y)0.49--
Sortino Ratio (1Y)0.70--

Profitability

ROE (TTM)

SK hynix (SKHY) at 92.54% clears its industry range for ROE, a sharper capital-efficiency signal than MKS (MKSI) at 20.46%, which is closer to a typical peer reading.

MKSI

Semiconductors & Semiconductor Equipment industry group

20.46%

Max
52.82%
Q3
22.26%
MKSI
20.46%
Median
10.58%
Q1
1.29%
Min
-16.89%

SKHY

Semiconductors & Semiconductor Equipment industry group

92.54%

SKHY
92.54%
Max
52.82%
Q3
22.26%
Median
10.58%
Q1
1.29%
Min
-16.89%
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their ROE against the Semiconductors & Semiconductor Equipment industry group benchmark.

Net Margin (TTM)

SK hynix (SKHY) at 70.27% converts revenue to bottom-line profit above its industry’s benchmark range, while MKS (MKSI) at 12.62% keeps roughly the typical share for its industry.

MKSI

Semiconductors & Semiconductor Equipment industry group

12.62%

Max
63.80%
Q3
28.36%
MKSI
12.62%
Median
11.44%
Q1
0.90%
Min
-37.77%

SKHY

Semiconductors & Semiconductor Equipment industry group

70.27%

SKHY
70.27%
Max
63.80%
Q3
28.36%
Median
11.44%
Q1
0.90%
Min
-37.77%
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their net margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Operating Margin (TTM)

SK hynix (SKHY) at 79.66% turns sales into operating profit above its industry’s benchmark range, while MKS (MKSI) at 23.21% operates around its industry’s norm.

MKSI

Semiconductors & Semiconductor Equipment industry group

23.21%

Max
58.66%
Q3
30.23%
MKSI
23.21%
Median
15.91%
Q1
7.54%
Min
-25.74%

SKHY

Semiconductors & Semiconductor Equipment industry group

79.66%

SKHY
79.66%
Max
58.66%
Q3
30.23%
Median
15.91%
Q1
7.54%
Min
-25.74%
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their operating margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
ROE (TTM)20.46%92.54%
ROA (TTM)6.28%46.43%
Net Margin (TTM)12.62%70.27%
Operating Margin (TTM)23.21%79.66%
Gross Margin (TTM)47.26%77.38%

Growth

Revenue Growth

SK hynix (SKHY) at 46.76% sits in the top revenue growth quartile, while MKS (MKSI) at 9.62% is closer to the peer norm — faster top-line expansion for SKHY.

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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both MKS (MKSI) at 55.52% and SK hynix (SKHY) at 112.46% sit in the top peer quartile for EPS growth, so each is compounding per-share earnings faster than typical industry peers.

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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
Revenue Growth (YoY)9.62%46.76%
Revenue Growth (3Y CAGR)3.49%29.61%
EPS Growth (YoY)55.52%112.46%
EPS Growth (3Y CAGR)-7.71%165.07%

Financial Strength

Current Ratio (MRQ)

SK hynix (SKHY) at 26.88 carries current ratio above its industry’s typical mid-range, while MKS (MKSI) at 1.19 runs in the tighter-liquidity quartile — different working-capital profiles, both worth examining.

MKSI

Semiconductors & Semiconductor Equipment industry group

1.19

Max
10.33
Q3
5.62
Median
3.33
Q1
2.35
MKSI
1.19
Min
1.03

SKHY

Semiconductors & Semiconductor Equipment industry group

26.88

SKHY
26.88
Max
10.33
Q3
5.62
Median
3.33
Q1
2.35
Min
1.03
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their current ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Debt / Equity (MRQ)

SK hynix (SKHY) at 0.05 carries an industry-typical debt-to-equity mix, while MKS (MKSI) at 1.22 uses more debt funding than most peers.

MKSI

Semiconductors & Semiconductor Equipment industry group

1.22

Max
1.46
MKSI
1.22
Q3
0.65
Median
0.27
Q1
0.04
Min
0.00

SKHY

Semiconductors & Semiconductor Equipment industry group

0.05

Max
1.46
Q3
0.65
Median
0.27
SKHY
0.05
Q1
0.04
Min
0.00
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their debt-to-equity ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Financial Strength Metrics

Financial strength metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
Current Ratio (MRQ)1.1926.88
Debt / Equity (MRQ)1.220.05
Net Debt / EBITDA2.67-0.46

Dividends

Dividend Yield (TTM)

MKS (MKSI) at 0.55% pays an industry-typical yield; SK hynix (SKHY) at 2,118.64% is above its entire peer range — the higher number, but one that calls for a look at payout sustainability before treating it as an advantage.

MKSI

Semiconductors & Semiconductor Equipment industry group

0.55%

Max
1.37%
Q3
0.65%
MKSI
0.55%
Median
0.00%
Q1
0.00%
Min
0.00%

SKHY

Semiconductors & Semiconductor Equipment industry group

2,118.64%

SKHY
2,118.64%
Max
1.37%
Q3
0.65%
Median
0.00%
Q1
0.00%
Min
0.00%
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their dividend yield against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

SK hynix (SKHY) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile MKS (MKSI) reports a payout of 11.48%, ranking against industry peers normally.

MKSI

Semiconductors & Semiconductor Equipment industry group

11.48%

Max
49.64%
Q3
21.71%
MKSI
11.48%
Median
0.00%
Q1
0.00%
Min
0.00%

SKHY

Semiconductors & Semiconductor Equipment industry group

0.00%

Max
49.64%
Q3
21.71%
SKHY
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their payout ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
Dividend Yield (TTM)0.55%2,118.64%
Dividend Payout Ratio (TTM)11.48%0.00%

Valuation

P/E Ratio (TTM)

Both MKS (MKSI) at 22.75 and SK hynix (SKHY) at 8.12 sit in the cheaper earnings-multiple quartile for P/E ratio, with the market paying less for a dollar of trailing earnings than it pays for typical peers.

MKSI

Semiconductors & Semiconductor Equipment industry group

22.75

Max
110.34
Q3
66.81
Median
37.02
Q1
23.96
MKSI
22.75
Min
8.12

SKHY

Semiconductors & Semiconductor Equipment industry group

8.12

Max
110.34
Q3
66.81
Median
37.02
Q1
23.96
SKHY
8.12
Min
8.12
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their P/E ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/S Ratio (TTM)

Both MKS (MKSI) at 2.72 and SK hynix (SKHY) at 0.00 fetch a relatively low price per dollar of sales, landing in the cheaper P/S ratio quartile of their industries.

MKSI

Semiconductors & Semiconductor Equipment industry group

2.72

Max
21.42
Q3
12.27
Median
5.76
Q1
2.73
MKSI
2.72
Min
0.00

SKHY

Semiconductors & Semiconductor Equipment industry group

0.00

Max
21.42
Q3
12.27
Median
5.76
Q1
2.73
SKHY
0.00
Min
0.00
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their P/S ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/B Ratio (MRQ)

On P/B ratio, both MKS (MKSI) at 3.96 and SK hynix (SKHY) at 3.95 are valued close to their industries’ norm against book — neither stands out from peers.

MKSI

Semiconductors & Semiconductor Equipment industry group

3.96

Max
14.06
Q3
7.44
Median
4.29
MKSI
3.96
Q1
2.30
Min
0.20

SKHY

Semiconductors & Semiconductor Equipment industry group

3.95

Max
14.06
Q3
7.44
Median
4.29
SKHY
3.95
Q1
2.30
Min
0.20
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MKS (MKSI) vs. SK hynix (SKHY): A comparison of their P/B ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for MKS (MKSI) and SK hynix (SKHY)
MetricMKSISKHY
P/E Ratio (TTM)22.758.12
P/S Ratio (TTM)2.720.00
P/B Ratio (MRQ)3.963.95
Free Cash Flow Yield (TTM)4.02%--