PSC vs. MDYG

Last updated Jun 4, 2026

PSC (Principal U.S. Small Cap Multi-Factor ETF) and MDYG (SPDR S&P 400 Mid Cap Growth ETF) are both exchange-traded funds - PSC is a Small Cap Blend Equities fund tracking the Nasdaq US Small Cap Select Leaders TR Index, while MDYG is a Mid Cap Growth Equities fund tracking the S&P MidCap 400 Growth Index. Both are passively managed. Over the past 5 years, PSC returned 8.06%/yr vs 8.60%/yr for MDYG. Their correlation of 0.82 suggests significant overlap in exposure. PSC charges 0.38%/yr vs 0.15%/yr for MDYG.

Performance

PSC vs. MDYG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal U.S. Small Cap Multi-Factor ETF (PSC) and SPDR S&P 400 Mid Cap Growth ETF (MDYG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PSC achieves a 13.84% return, which is significantly lower than MDYG's 19.12% return.

PSC

• 1D: -0.94%
• 1M: 3.79%
• YTD: 13.84%
• 6M: 13.56%
• 1Y: 27.15%
• 3Y*: 18.36%
• 5Y*: 8.06%
• 10Y*: —

MDYG

• 1D: 0.19%
• 1M: 5.83%
• YTD: 19.12%
• 6M: 19.35%
• 1Y: 29.98%
• 3Y*: 18.05%
• 5Y*: 8.60%
• 10Y*: 11.58%

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

PSC vs. MDYG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PSC Principal U.S. Small Cap Multi-Factor ETF	13.84%	13.41%	12.38%	18.51%	-15.91%	32.56%	13.30%	18.99%	-11.35%	15.93%
MDYG SPDR S&P 400 Mid Cap Growth ETF	19.12%	7.22%	15.84%	17.30%	-18.92%	18.46%	22.57%	26.10%	-10.46%	19.61%

Correlation

The correlation between PSC and MDYG is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Sep 23, 2016	0.82

The correlation between PSC and MDYG shifts across timeframes, from 0.82 (all time) to 0.93 (5 years), reflecting how their relationship changes across market environments.

PSC vs. MDYG - Sectors Allocation Comparison

Sectors	PSC	MDYG
Technology	20.3%	21.5%
Industrials	17.7%	30.9%
Financial Services	16.5%	7.1%
Healthcare	15.3%	13.7%
Consumer Cyclical	8.1%	8.1%
Energy	6.0%	3.7%
Real Estate	4.6%	5.6%
Basic Materials	4.2%	3.7%
Utilities	2.9%	2.0%
Consumer Defensive	2.3%	2.1%
Communication Services	2.2%	1.5%

Return for Risk

PSC vs. MDYG — Risk / Return Rank

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

PSC

PSC Risk / Return Rank: 46
PSC Sharpe Ratio Rank: 41
PSC Sortino Ratio Rank: 42
PSC Omega Ratio Rank: 38
PSC Calmar Ratio Rank: 55
PSC Martin Ratio Rank: 55

MDYG

MDYG Risk / Return Rank: 55
MDYG Sharpe Ratio Rank: 50
MDYG Sortino Ratio Rank: 52
MDYG Omega Ratio Rank: 48
MDYG Calmar Ratio Rank: 60
MDYG Martin Ratio Rank: 66

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.

PSC vs. MDYG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal U.S. Small Cap Multi-Factor ETF (PSC) and SPDR S&P 400 Mid Cap Growth ETF (MDYG). 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.

	PSC	MDYG	Difference
Sharpe ratio Return per unit of total volatility	1.46	1.77	-0.31
Sortino ratio Return per unit of downside risk	2.14	2.54	-0.40
Omega ratio Gain probability vs. loss probability	1.25	1.31	-0.06
Calmar ratio Return relative to maximum drawdown	2.74	3.04	-0.30
Martin ratio Return relative to average drawdown	9.55	12.15	-2.60
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PSC vs. MDYG - Sharpe Ratio Comparison

The current PSC Sharpe Ratio is 1.46, which is comparable to the MDYG Sharpe Ratio of 1.77. The chart below compares the historical Sharpe Ratios of PSC and MDYG, 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

	PSC	MDYG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.46	1.77	-0.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.39	0.42	-0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.55	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.50	0.48	+0.02

Drawdowns

PSC vs. MDYG - Drawdown Comparison

The maximum PSC drawdown since its inception was -46.69%, smaller than the maximum MDYG drawdown of -58.44%. Use the drawdown chart below to compare losses from any high point for PSC and MDYG.

Drawdown Indicators

	PSC	MDYG	Difference
Max Drawdown Largest peak-to-trough decline	-46.69%	-58.44%	+11.75%
Max Drawdown (1Y) Largest decline over 1 year	-9.95%	-9.91%	-0.04%
Max Drawdown (3Y) Largest decline over 3 years	-23.49%	-25.45%	+1.96%
Max Drawdown (5Y) Largest decline over 5 years	-25.86%	-29.26%	+3.40%
Max Drawdown (10Y) Largest decline over 10 years	—	-39.27%	—
Current Drawdown Current decline from peak	-0.94%	0.00%	-0.94%
Average Drawdown Average peak-to-trough decline	-8.28%	-8.03%	-0.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.85%	2.47%	+0.38%

Volatility

PSC vs. MDYG - Volatility Comparison

The current volatility for Principal U.S. Small Cap Multi-Factor ETF (PSC) is 4.93%, while SPDR S&P 400 Mid Cap Growth ETF (MDYG) has a volatility of 5.23%. This indicates that PSC experiences smaller price fluctuations and is considered to be less risky than MDYG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PSC	MDYG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.93%	5.23%	-0.30%
Volatility (6M) Calculated over the trailing 6-month period	12.77%	13.22%	-0.45%
Volatility (1Y) Calculated over the trailing 1-year period	18.65%	17.05%	+1.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.99%	20.62%	+0.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.30%	21.05%	+2.25%

PSC vs. MDYG - Expense Ratio Comparison

PSC has a 0.38% expense ratio, which is higher than MDYG's 0.15% expense ratio.

Dividends

PSC vs. MDYG - Dividend Comparison

PSC's dividend yield for the trailing twelve months is around 0.58%, less than MDYG's 0.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MDYG SPDR S&P 400 Mid Cap Growth ETF	0.61%	0.75%	0.87%	1.20%	1.16%	0.69%	0.71%	1.21%	1.36%	2.23%	1.25%	2.51%
PSC Principal U.S. Small Cap Multi-Factor ETF	0.58%	0.67%	0.75%	0.73%	1.92%	1.45%	1.25%	1.47%	1.30%	0.95%	0.35%	0.00%

Frequently Asked Questions

Can I hold both PSC and MDYG in my portfolio?

PSC and MDYG have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PSC or MDYG?

MDYG has higher volatility (5.23%) compared to PSC (4.93%). In terms of maximum drawdown, PSC dropped -46.69% vs MDYG's -58.44%.

Which ETF is better, PSC or MDYG?

On 5-year performance, MDYG leads with 8.60% vs 8.06% for PSC. On fees, MDYG is cheaper at 0.15% per year. On volatility, PSC has been the lower-risk option at 4.93%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PSC or MDYG?

Over the 5-year period, MDYG has performed better with a 8.60% return vs 8.06%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PSC or MDYG?

MDYG is cheaper with a 0.15% expense ratio, compared with 0.38% for PSC.

Which ETF pays a higher dividend yield, PSC or MDYG?

MDYG has the higher dividend yield at 0.61%, compared with 0.58% for PSC.

What is the main difference between PSC and MDYG?

PSC is categorized as Small Cap Blend Equities, while MDYG is Mid Cap Growth Equities. PSC tracks Nasdaq US Small Cap Select Leaders TR Index, while MDYG tracks S&P MidCap 400 Growth Index. They also come from different issuers: Principal and State Street. Their fees differ too: 0.38% for PSC and 0.15% for MDYG.

Which has better risk-adjusted returns?

MDYG currently has the higher Sharpe Ratio (1.77 vs 1.46), 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.