XYL vs. 1211.HK

Last updated Jun 13, 2026

XYL (Xylem Inc.) and 1211.HK (BYD Co Ltd-H) are both stocks. XYL operates in Specialty Industrial Machinery (Industrials), while 1211.HK operates in Auto Manufacturers (Consumer Cyclical). Over the past 10 years, XYL returned 10.54%/yr vs 21.60%/yr for 1211.HK. At a 0.09 correlation, their price movements are largely independent.

Performance

XYL vs. 1211.HK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Xylem Inc. (XYL) and BYD Co Ltd-H (1211.HK). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

XYL is traded in USD, while 1211.HK is traded in HKD. To make them comparable, the 1211.HK values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, XYL achieves a -18.57% return, which is significantly lower than 1211.HK's -9.41% return. Over the past 10 years, XYL has underperformed 1211.HK with an annualized return of 10.54%, while 1211.HK has yielded a comparatively higher 21.60% annualized return.

XYL

• 1D: 0.94%
• 1M: 1.38%
• YTD: -18.57%
• 6M: -19.12%
• 1Y: -12.41%
• 3Y*: 1.00%
• 5Y*: -0.21%
• 10Y*: 10.54%

1211.HK

• 1D: 1.90%
• 1M: -11.45%
• YTD: -9.41%
• 6M: -12.28%
• 1Y: -35.18%
• 3Y*: 3.07%
• 5Y*: 5.80%
• 10Y*: 21.60%

*Multi-year figures are annualized to reflect compound growth (CAGR)

XYL vs. 1211.HK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
XYL Xylem Inc.	-18.57%	18.78%	2.57%	4.77%	-6.60%	18.94%	30.90%	19.59%	-1.01%	39.50%
1211.HK BYD Co Ltd-H	-9.41%	10.74%	30.84%	13.01%	-27.81%	30.77%	427.28%	-20.65%	-26.03%	67.62%

Correlation

The correlation between XYL and 1211.HK is 0.00, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.00
Correlation (3Y) Calculated over the trailing 3-year period	0.05
Correlation (5Y) Calculated over the trailing 5-year period	0.07
Correlation (10Y) Calculated over the trailing 10-year period	0.09
Correlation (All Time) Calculated using the full available price history since Oct 13, 2011	0.09

Return for Risk

XYL vs. 1211.HK — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

XYL

XYL Risk / Return Rank: 23
XYL Sharpe Ratio Rank: 20
XYL Sortino Ratio Rank: 19
XYL Omega Ratio Rank: 19
XYL Calmar Ratio Rank: 29
XYL Martin Ratio Rank: 25

1211.HK

1211.HK Risk / Return Rank: 6
1211.HK Sharpe Ratio Rank: 5
1211.HK Sortino Ratio Rank: 6
1211.HK Omega Ratio Rank: 9
1211.HK Calmar Ratio Rank: 2
1211.HK Martin Ratio Rank: 5

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

XYL vs. 1211.HK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Xylem Inc. (XYL) and BYD Co Ltd-H (1211.HK). 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.

	XYL	1211.HK	Difference
Sharpe ratio: Return per unit of total volatility	-0.51	-0.99	+0.49
Sortino ratio: Return per unit of downside risk	-0.59	-1.47	+0.88
Omega ratio: Gain probability vs. loss probability	0.93	0.84	+0.08
Calmar ratio: Return relative to maximum drawdown	-0.41	-0.99	+0.57
Martin ratio: Return relative to average drawdown	-0.92	-1.57	+0.65

XYL vs. 1211.HK - Sharpe Ratio Comparison

The current XYL Sharpe Ratio is -0.51, which is higher than the 1211.HK Sharpe Ratio of -0.99. The chart below compares the historical Sharpe Ratios of XYL and 1211.HK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

XYL vs. 1211.HK - Drawdown Comparison

The maximum XYL drawdown since its inception was -46.69%, smaller than the maximum 1211.HK drawdown of -86.98%. Use the drawdown chart below to compare losses from any high point for XYL and 1211.HK.

Drawdown Indicators

	XYL	1211.HK	Difference
Max Drawdown Largest peak-to-trough decline	-46.69%	-86.98%	+40.29%
Max Drawdown (1Y) Largest decline over 1 year	-30.04%	-36.29%	+6.25%
Max Drawdown (3Y) Largest decline over 3 years	-30.04%	-43.12%	+13.08%
Max Drawdown (5Y) Largest decline over 5 years	-46.69%	-50.01%	+3.32%
Max Drawdown (10Y) Largest decline over 10 years	-46.69%	-56.95%	+10.26%
Current Drawdown Current decline from peak	-27.30%	-42.04%	+14.74%
Average Drawdown Average peak-to-trough decline	-10.40%	-37.54%	+27.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.54%	26.03%	-12.49%

Volatility

XYL vs. 1211.HK - Volatility Comparison

The current volatility for Xylem Inc. (XYL) is 6.01%, while BYD Co Ltd-H (1211.HK) has a volatility of 10.94%. This indicates that XYL experiences smaller price fluctuations and is considered to be less risky than 1211.HK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	XYL	1211.HK	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.01%	10.94%	-4.93%
Volatility (6M) Calculated over the trailing 6-month period	19.34%	28.10%	-8.76%
Volatility (1Y) Calculated over the trailing 1-year period	24.52%	36.26%	-11.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.08%	45.22%	-19.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.30%	47.17%	-19.87%

Dividends

XYL vs. 1211.HK - Dividend Comparison

XYL's dividend yield for the trailing twelve months is around 1.51%, more than 1211.HK's 0.48% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
1211.HK BYD Co Ltd-H	0.48%	4.55%	3.83%	1.76%	0.16%	0.17%	0.10%	1.79%	1.04%	0.89%	3.09%	0.00%
XYL Xylem Inc.	1.51%	1.17%	1.24%	1.15%	1.09%	0.93%	1.02%	1.22%	1.26%	1.06%	1.25%	1.54%

Financials

Frequently Asked Questions

Can I hold both XYL and 1211.HK in my portfolio?

XYL and 1211.HK have a correlation of 0.00, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.