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LASR vs. EWY
Performance
Return for Risk
Drawdowns
Volatility
Dividends

LASR vs. EWY

Last updated Aug 4, 2026
Documentation

LASR (nLIGHT, Inc.) is a stock, while EWY (iShares MSCI South Korea ETF) is South Korea Equities fund tracking the MSCI Korea Index. Over the past 5 years, LASR returned 17.47%/yr vs 14.28%/yr for EWY. Their 0.40 correlation means their historical movements had little consistent relationship.

Performance

LASR vs. EWY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in nLIGHT, Inc. (LASR) and iShares MSCI South Korea ETF (EWY). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, LASR achieves a 86.91% return, which is significantly higher than EWY's 64.82% return.

LASR

1D
1.90%
1M
10.85%
6M
45.82%
YTD
86.91%
1Y
248.63%
3Y*
80.97%
5Y*
17.47%
10Y*
—
ALL TIME*
14.43%

EWY

1D
2.00%
1M
-11.05%
6M
32.51%
YTD
64.82%
1Y
131.90%
3Y*
38.47%
5Y*
14.28%
10Y*
13.21%
ALL TIME*
9.71%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

PositionAvg. Volume Value (2W)Avg. Volume Value (1M)Avg. Volume Value (3M)

EWY

iShares MSCI South Korea ETF
$4.48B$4.44B$4.18B

LASR

nLIGHT, Inc.
$58.63M$74.10M$89.15M

LASR vs. EWY - Yearly Performance Comparison

2026 (YTD)20252024202320222021202020192018
LASR
nLIGHT, Inc.		86.91%257.58%-22.30%33.14%-57.66%-26.65%61.00%14.06%-22.70%
EWY
iShares MSCI South Korea ETF		64.82%95.33%-20.48%19.05%-26.59%-7.58%39.43%7.97%-18.60%

Correlation

The correlation between LASR and EWY is 0.46, which is low. Their historical price movements had little consistent relationship.

Correlation
Correlation (1Y)
Focuses on recent behavior, but can change the most.

0.46

Correlation (3Y)
Balances recent behavior with more history.

0.41

Correlation (5Y)
Shows whether the relationship held over a longer period.

0.43

Correlation (All Time)
Calculated using the full available price history since Apr 26, 2018

0.40

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

nLIGHT, Inc.

iShares MSCI South Korea ETF

Often compared with LASR:
LASR vs. SITMLASR vs. COSTLASR vs. MTZLASR vs. ATMULASR vs. SIILASR vs. ASMLLASR vs. SYM
Often compared with EWY:
EWY vs. FLKREWY vs. SPYEWY vs. EWJEWY vs. KORUEWY vs. EWTEWY vs. QQQEWY vs. EWH

Return for Risk

LASR vs. EWY — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.
LASR
LASR Risk / Return Rank: 9595
Overall Rank
LASR Sharpe Ratio Rank: 9797
Sharpe Ratio Rank
LASR Sortino Ratio Rank: 9494
Sortino Ratio Rank
LASR Omega Ratio Rank: 9191
Omega Ratio Rank
LASR Calmar Ratio Rank: 9898
Calmar Ratio Rank
LASR Martin Ratio Rank: 9898
Martin Ratio Rank
EWY
EWY Risk / Return Rank: 8888
Overall Rank
EWY Sharpe Ratio Rank: 9292
Sharpe Ratio Rank
EWY Sortino Ratio Rank: 8282
Sortino Ratio Rank
EWY Omega Ratio Rank: 8686
Omega Ratio Rank
EWY Calmar Ratio Rank: 9090
Calmar Ratio Rank
EWY Martin Ratio Rank: 8888
Martin Ratio Rank
The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

LASR vs. EWY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for nLIGHT, Inc. (LASR) and iShares MSCI South Korea ETF (EWY). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

LASREWYDifference
Sharpe ratioReturn per unit of total volatility
2.91
2.45

+0.46

Sortino ratioReturn per unit of downside risk
3.21
2.74

+0.47

Omega ratioGain probability vs. loss probability

1.38

1.38

0.00

Calmar ratioReturn relative to maximum drawdown

8.10

3.88

+4.22

Martin ratioReturn relative to average drawdown

22.47

13.64

+8.83

LASR vs. EWY - Sharpe Ratio Comparison

The current LASR Sharpe Ratio is 2.91, which is comparable to the EWY Sharpe Ratio of 2.45. The chart below compares the historical Sharpe Ratios of LASR and EWY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

LASR vs. EWY - Drawdown Comparison

The maximum LASR drawdown since its inception was -85.66%, which is greater than EWY's maximum drawdown of -74.14%. Use the drawdown chart below to compare losses from any high point for LASR and EWY.

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Drawdown Indicators

LASREWYDifference

Max Drawdown

Largest peak-to-trough decline

-85.66%

-74.14%

-11.52%

Max Drawdown (1Y)

Largest decline over 1 year

-30.92%

-34.21%

+3.29%

Max Drawdown (3Y)

Largest decline over 3 years

-56.13%

-34.21%

-21.92%

Max Drawdown (5Y)

Largest decline over 5 years

-80.47%

-47.15%

-33.32%

Max Drawdown (10Y)

Largest decline over 10 years

—

-49.73%

—

Current Drawdown

Current decline from peak

-17.47%

-26.90%

+9.43%

Average Drawdown

Average peak-to-trough decline

-52.14%

-20.10%

-32.04%

Ulcer Index

Depth and duration of drawdowns from previous peaks

11.12%

9.71%

+1.41%

Volatility

LASR vs. EWY - Volatility Comparison

nLIGHT, Inc. (LASR) has a higher volatility of 35.15% compared to iShares MSCI South Korea ETF (EWY) at 22.12%. This indicates that LASR's price experiences larger fluctuations and is considered to be riskier than EWY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

LASREWYDifference

Volatility (1M)

Calculated over the trailing 1-month period

35.15%

22.12%

+13.03%

Volatility (6M)

Calculated over the trailing 6-month period

69.34%

50.88%

+18.46%

Volatility (1Y)

Calculated over the trailing 1-year period

86.35%

54.30%

+32.05%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

67.19%

32.79%

+34.40%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

67.51%

29.39%

+38.12%

Dividends

LASR vs. EWY - Dividend Comparison

LASR has not paid dividends to shareholders, while EWY's dividend yield for the trailing twelve months is around 1.27%.

PositionTTM20252024202320222021202020192018201720162015
EWY
iShares MSCI South Korea ETF		1.27%2.10%2.55%2.52%1.23%2.16%0.73%2.10%1.34%2.90%1.21%2.42%
LASR
nLIGHT, Inc.		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%

Frequently Asked Questions

LASR and EWY have a correlation of 0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

LASR has higher volatility (35.15%) compared to EWY (22.12%). In terms of maximum drawdown, LASR dropped -85.66% vs EWY's -74.14%.

LASR currently has the higher Sharpe Ratio (2.91 vs 2.45), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.

Portfolio Optimizer

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