WTS vs. DIA

Last updated Jun 13, 2026

WTS (Watts Water Technologies, Inc.) is a stock, while DIA (State Street SPDR Dow Jones Industrial Average ETF Trust) is Large Cap Blend Equities fund tracking the Dow Jones Industrial Average. Over the past 10 years, WTS returned 20.25%/yr vs 13.40%/yr for DIA. A 0.54 correlation means they provide meaningful diversification when combined.

Performance

WTS vs. DIA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Watts Water Technologies, Inc. (WTS) and State Street SPDR Dow Jones Industrial Average ETF Trust (DIA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WTS achieves a 21.12% return, which is significantly higher than DIA's 7.27% return. Over the past 10 years, WTS has outperformed DIA with an annualized return of 20.25%, while DIA has yielded a comparatively lower 13.40% annualized return.

WTS

• 1D: 3.81%
• 1M: 11.26%
• YTD: 21.12%
• 6M: 19.78%
• 1Y: 38.75%
• 3Y*: 24.54%
• 5Y*: 19.38%
• 10Y*: 20.25%

DIA

• 1D: 0.73%
• 1M: 3.26%
• YTD: 7.27%
• 6M: 6.43%
• 1Y: 21.01%
• 3Y*: 16.29%
• 5Y*: 10.14%
• 10Y*: 13.40%

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

WTS vs. DIA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WTS Watts Water Technologies, Inc.	21.12%	36.85%	-1.62%	43.57%	-24.08%	60.63%	23.14%	56.20%	-14.13%	17.84%
DIA State Street SPDR Dow Jones Industrial Average ETF Trust	7.27%	14.71%	14.82%	16.02%	-7.02%	20.83%	9.59%	24.70%	-3.74%	28.08%

Correlation

The correlation between WTS and DIA is 0.54, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.54
Correlation (3Y) Calculated over the trailing 3-year period	0.61
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (10Y) Calculated over the trailing 10-year period	0.64
Correlation (All Time) Calculated using the full available price history since Jan 20, 1998	0.54

The correlation between WTS and DIA shifts across timeframes, from 0.54 (1 year) to 0.66 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

WTS vs. DIA — Risk / Return Rank

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

WTS

WTS Risk / Return Rank: 83
WTS Sharpe Ratio Rank: 86
WTS Sortino Ratio Rank: 84
WTS Omega Ratio Rank: 81
WTS Calmar Ratio Rank: 81
WTS Martin Ratio Rank: 81

DIA

DIA Risk / Return Rank: 55
DIA Sharpe Ratio Rank: 57
DIA Sortino Ratio Rank: 60
DIA Omega Ratio Rank: 55
DIA Calmar Ratio Rank: 49
DIA Martin Ratio Rank: 55

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.

WTS vs. DIA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Watts Water Technologies, Inc. (WTS) and State Street SPDR Dow Jones Industrial Average ETF Trust (DIA). 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.

	WTS	DIA	Difference
Sharpe ratio: Return per unit of total volatility	1.69	1.69	+0.01
Sortino ratio: Return per unit of downside risk	2.45	2.46	-0.01
Omega ratio: Gain probability vs. loss probability	1.30	1.30	0.00
Calmar ratio: Return relative to maximum drawdown	2.52	2.16	+0.36
Martin ratio: Return relative to average drawdown	6.51	8.35	-1.84

WTS vs. DIA - Sharpe Ratio Comparison

The current WTS Sharpe Ratio is 1.69, which is comparable to the DIA Sharpe Ratio of 1.69. The chart below compares the historical Sharpe Ratios of WTS and DIA, 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

WTS vs. DIA - Drawdown Comparison

The maximum WTS drawdown since its inception was -63.68%, which is greater than DIA's maximum drawdown of -51.87%. Use the drawdown chart below to compare losses from any high point for WTS and DIA.

Drawdown Indicators

	WTS	DIA	Difference
Max Drawdown Largest peak-to-trough decline	-63.68%	-51.87%	-11.81%
Max Drawdown (1Y) Largest decline over 1 year	-15.45%	-9.76%	-5.69%
Max Drawdown (3Y) Largest decline over 3 years	-19.54%	-15.95%	-3.59%
Max Drawdown (5Y) Largest decline over 5 years	-44.08%	-20.76%	-23.32%
Max Drawdown (10Y) Largest decline over 10 years	-44.08%	-36.70%	-7.38%
Current Drawdown Current decline from peak	-0.55%	-0.70%	+0.15%
Average Drawdown Average peak-to-trough decline	-16.19%	-7.14%	-9.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.97%	2.53%	+3.44%

Volatility

WTS vs. DIA - Volatility Comparison

Watts Water Technologies, Inc. (WTS) has a higher volatility of 7.01% compared to State Street SPDR Dow Jones Industrial Average ETF Trust (DIA) at 4.32%. This indicates that WTS's price experiences larger fluctuations and is considered to be riskier than DIA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WTS	DIA	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.01%	4.32%	+2.69%
Volatility (6M) Calculated over the trailing 6-month period	16.66%	9.78%	+6.88%
Volatility (1Y) Calculated over the trailing 1-year period	23.03%	12.52%	+10.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.84%	14.85%	+12.99%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.24%	17.56%	+10.68%

Dividends

WTS vs. DIA - Dividend Comparison

WTS's dividend yield for the trailing twelve months is around 0.66%, less than DIA's 1.37% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIA State Street SPDR Dow Jones Industrial Average ETF Trust	1.37%	1.43%	1.61%	1.81%	1.91%	1.58%	1.87%	1.85%	2.24%	1.97%	2.26%	2.33%
WTS Watts Water Technologies, Inc.	0.66%	0.72%	0.81%	0.66%	0.79%	0.52%	0.76%	0.90%	1.27%	0.99%	1.09%	1.33%

Frequently Asked Questions

Can I hold both WTS and DIA in my portfolio?

WTS and DIA have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WTS or DIA?

WTS has higher volatility (7.01%) compared to DIA (4.32%). In terms of maximum drawdown, WTS dropped -63.68% vs DIA's -51.87%.

Which has better risk-adjusted returns?

WTS currently has the higher Sharpe Ratio (1.69 vs 1.69), 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.