ROK vs. SPYG

Last updated Jun 4, 2026

ROK (Rockwell Automation, Inc.) is a stock, while SPYG (State Street SPDR Portfolio S&P 500 Growth ETF) is S&P 500 fund tracking the S&P 500 Growth Index. Over the past 10 years, ROK returned 16.75%/yr vs 18.20%/yr for SPYG. A 0.60 correlation means they provide meaningful diversification when combined.

Performance

ROK vs. SPYG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rockwell Automation, Inc. (ROK) and State Street SPDR Portfolio S&P 500 Growth ETF (SPYG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ROK achieves a 19.45% return, which is significantly higher than SPYG's 13.75% return. Over the past 10 years, ROK has underperformed SPYG with an annualized return of 16.75%, while SPYG has yielded a comparatively higher 18.20% annualized return.

ROK

• 1D: -0.36%
• 1M: 15.70%
• YTD: 19.45%
• 6M: 16.08%
• 1Y: 47.89%
• 3Y*: 18.35%
• 5Y*: 12.75%
• 10Y*: 16.75%

SPYG

• 1D: -0.98%
• 1M: 7.38%
• YTD: 13.75%
• 6M: 13.57%
• 1Y: 33.95%
• 3Y*: 28.16%
• 5Y*: 16.07%
• 10Y*: 18.20%

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

ROK vs. SPYG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ROK Rockwell Automation, Inc.	19.45%	38.36%	-6.23%	22.63%	-24.78%	41.21%	26.17%	37.85%	-21.79%	48.87%
SPYG State Street SPDR Portfolio S&P 500 Growth ETF	13.75%	22.09%	35.99%	30.02%	-29.41%	32.01%	33.46%	30.84%	-0.12%	27.24%

Correlation

The correlation between ROK and SPYG is 0.51, 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	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.50
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.58
Correlation (All Time) Calculated using the full available price history since Oct 3, 2000	0.60

The correlation between ROK and SPYG has been stable across timeframes, ranging from 0.50 to 0.60 - a consistent structural relationship.

Return for Risk

ROK vs. SPYG — Risk / Return Rank

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

ROK

ROK Risk / Return Rank: 81
ROK Sharpe Ratio Rank: 84
ROK Sortino Ratio Rank: 81
ROK Omega Ratio Rank: 79
ROK Calmar Ratio Rank: 79
ROK Martin Ratio Rank: 83

SPYG

SPYG Risk / Return Rank: 57
SPYG Sharpe Ratio Rank: 62
SPYG Sortino Ratio Rank: 60
SPYG Omega Ratio Rank: 59
SPYG Calmar Ratio Rank: 49
SPYG Martin Ratio Rank: 57

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.

ROK vs. SPYG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rockwell Automation, Inc. (ROK) and State Street SPDR Portfolio S&P 500 Growth ETF (SPYG). 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.

	ROK	SPYG	Difference
Sharpe ratio: Return per unit of total volatility	1.71	2.12	-0.41
Sortino ratio: Return per unit of downside risk	2.42	2.90	-0.48
Omega ratio: Gain probability vs. loss probability	1.30	1.37	-0.07
Calmar ratio: Return relative to maximum drawdown	2.57	2.48	+0.09
Martin ratio: Return relative to average drawdown	8.14	10.25	-2.12
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ROK vs. SPYG - Sharpe Ratio Comparison

The current ROK Sharpe Ratio is 1.71, which is comparable to the SPYG Sharpe Ratio of 2.12. The chart below compares the historical Sharpe Ratios of ROK and SPYG, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ROK	SPYG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.71	2.12	-0.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.40	0.76	-0.36
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.53	0.88	-0.35
Sharpe Ratio (All Time) Calculated using the full available price history	0.43	0.35	+0.07

Drawdowns

ROK vs. SPYG - Drawdown Comparison

The maximum ROK drawdown since its inception was -75.83%, which is greater than SPYG's maximum drawdown of -67.63%. Use the drawdown chart below to compare losses from any high point for ROK and SPYG.

Drawdown Indicators

	ROK	SPYG	Difference
Max Drawdown Largest peak-to-trough decline	-75.83%	-67.63%	-8.20%
Max Drawdown (1Y) Largest decline over 1 year	-18.73%	-13.76%	-4.97%
Max Drawdown (3Y) Largest decline over 3 years	-34.84%	-22.14%	-12.70%
Max Drawdown (5Y) Largest decline over 5 years	-45.09%	-32.67%	-12.42%
Max Drawdown (10Y) Largest decline over 10 years	-45.09%	-32.67%	-12.42%
Current Drawdown Current decline from peak	-0.36%	-1.13%	+0.77%
Average Drawdown Average peak-to-trough decline	-14.88%	-24.33%	+9.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.90%	3.32%	+2.58%

Volatility

ROK vs. SPYG - Volatility Comparison

Rockwell Automation, Inc. (ROK) has a higher volatility of 12.19% compared to State Street SPDR Portfolio S&P 500 Growth ETF (SPYG) at 4.35%. This indicates that ROK's price experiences larger fluctuations and is considered to be riskier than SPYG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ROK	SPYG	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.19%	4.35%	+7.84%
Volatility (6M) Calculated over the trailing 6-month period	23.07%	12.46%	+10.61%
Volatility (1Y) Calculated over the trailing 1-year period	28.16%	16.06%	+12.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	31.69%	21.17%	+10.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.42%	20.64%	+10.78%

Dividends

ROK vs. SPYG - Dividend Comparison

ROK's dividend yield for the trailing twelve months is around 1.18%, more than SPYG's 0.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ROK Rockwell Automation, Inc.	1.18%	1.36%	1.77%	1.54%	1.76%	1.24%	1.65%	1.94%	2.42%	1.59%	2.18%	2.61%
SPYG State Street SPDR Portfolio S&P 500 Growth ETF	0.47%	0.52%	0.60%	1.15%	1.03%	0.62%	0.90%	1.37%	1.51%	1.41%	1.55%	1.57%

Frequently Asked Questions

Can I hold both ROK and SPYG in my portfolio?

ROK and SPYG have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ROK or SPYG?

ROK has higher volatility (12.19%) compared to SPYG (4.35%). In terms of maximum drawdown, ROK dropped -75.83% vs SPYG's -67.63%.

Which has better risk-adjusted returns?

SPYG currently has the higher Sharpe Ratio (2.12 vs 1.71), 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.