PMEFX vs. TIBIX

Last updated Jul 4, 2026

PMEFX (Penn Mutual Am 1847 Income Fund) and TIBIX (Thornburg Investment Income Builder Fund Class I) are both Diversified Portfolio funds. Over the past 5 years, PMEFX returned 2.62%/yr vs 16.11%/yr for TIBIX. A 0.65 correlation means they provide meaningful diversification when combined. PMEFX charges 0.65%/yr vs 0.93%/yr for TIBIX.

Performance

PMEFX vs. TIBIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Penn Mutual Am 1847 Income Fund (PMEFX) and Thornburg Investment Income Builder Fund Class I (TIBIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

PMEFX

• 1D: 0.00%
• 1M: 0.00%
• 6M: 0.00%
• YTD: 0.00%
• 1Y: -4.24%
• 3Y*: 4.95%
• 5Y*: 2.62%
• 10Y*: —

TIBIX

• 1D: 0.45%
• 1M: -1.77%
• 6M: 14.84%
• YTD: 15.60%
• 1Y: 31.29%
• 3Y*: 24.72%
• 5Y*: 16.11%
• 10Y*: 12.39%

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

PMEFX vs. TIBIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
PMEFX Penn Mutual Am 1847 Income Fund	0.00%	1.11%	9.80%	9.80%	-4.30%	9.78%	6.47%
TIBIX Thornburg Investment Income Builder Fund Class I	15.60%	37.01%	13.48%	18.28%	-7.69%	20.36%	14.19%

Correlation

The correlation between PMEFX and TIBIX is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.27
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.64
Correlation (All Time) Calculated using the full available price history since Jul 31, 2020	0.65

Over the past year, the correlation between PMEFX and TIBIX has dropped to 0.27 - well below their long-term average of 0.65, suggesting their price drivers have been diverging.

Return for Risk

PMEFX vs. TIBIX — Risk / Return Rank

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

PMEFX

PMEFX Risk / Return Rank: 1
PMEFX Sharpe Ratio Rank: 1
PMEFX Sortino Ratio Rank: 1
PMEFX Omega Ratio Rank: 0
PMEFX Calmar Ratio Rank: 1
PMEFX Martin Ratio Rank: 1

TIBIX

TIBIX Risk / Return Rank: 97
TIBIX Sharpe Ratio Rank: 99
TIBIX Sortino Ratio Rank: 97
TIBIX Omega Ratio Rank: 95
TIBIX Calmar Ratio Rank: 97
TIBIX Martin Ratio Rank: 97

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.

PMEFX vs. TIBIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Penn Mutual Am 1847 Income Fund (PMEFX) and Thornburg Investment Income Builder Fund Class I (TIBIX). 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.

	PMEFX	TIBIX	Difference
Sharpe ratio: Return per unit of total volatility	-0.61	3.58	-4.18
Sortino ratio: Return per unit of downside risk	-0.62	5.11	-5.73
Omega ratio: Gain probability vs. loss probability	0.75	1.69	-0.94
Calmar ratio: Return relative to maximum drawdown	-0.64	5.91	-6.55
Martin ratio: Return relative to average drawdown	-0.85	22.21	-23.06

PMEFX vs. TIBIX - Sharpe Ratio Comparison

The current PMEFX Sharpe Ratio is -0.61, which is lower than the TIBIX Sharpe Ratio of 3.58. The chart below compares the historical Sharpe Ratios of PMEFX and TIBIX, 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

PMEFX vs. TIBIX - Drawdown Comparison

The maximum PMEFX drawdown since its inception was -13.27%, smaller than the maximum TIBIX drawdown of -48.88%. Use the drawdown chart below to compare losses from any high point for PMEFX and TIBIX.

Drawdown Indicators

	PMEFX	TIBIX	Difference
Max Drawdown Largest peak-to-trough decline	-13.27%	-48.88%	+35.61%
Max Drawdown (1Y) Largest decline over 1 year	-7.19%	-5.39%	-1.80%
Max Drawdown (3Y) Largest decline over 3 years	-10.04%	-9.23%	-0.81%
Max Drawdown (5Y) Largest decline over 5 years	-12.65%	-20.79%	+8.14%
Max Drawdown (10Y) Largest decline over 10 years	—	-34.85%	—
Current Drawdown Current decline from peak	-7.19%	-2.00%	-5.19%
Average Drawdown Average peak-to-trough decline	-3.15%	-5.94%	+2.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.02%	1.43%	+3.59%

Volatility

PMEFX vs. TIBIX - Volatility Comparison

The current volatility for Penn Mutual Am 1847 Income Fund (PMEFX) is 0.00%, while Thornburg Investment Income Builder Fund Class I (TIBIX) has a volatility of 3.06%. This indicates that PMEFX experiences smaller price fluctuations and is considered to be less risky than TIBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PMEFX	TIBIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.00%	3.06%	-3.06%
Volatility (6M) Calculated over the trailing 6-month period	6.60%	7.32%	-0.72%
Volatility (1Y) Calculated over the trailing 1-year period	7.66%	8.89%	-1.23%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.87%	11.21%	-3.34%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.64%	13.42%	-5.78%

PMEFX vs. TIBIX - Expense Ratio Comparison

PMEFX has a 0.65% expense ratio, which is lower than TIBIX's 0.93% expense ratio.

Dividends

PMEFX vs. TIBIX - Dividend Comparison

PMEFX's dividend yield for the trailing twelve months is around 5.89%, more than TIBIX's 5.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PMEFX Penn Mutual Am 1847 Income Fund	5.89%	8.73%	6.16%	4.41%	3.25%	13.55%	1.00%	0.00%	0.00%	0.00%	0.00%	0.00%
TIBIX Thornburg Investment Income Builder Fund Class I	5.21%	5.83%	5.67%	4.89%	5.89%	5.33%	4.31%	4.46%	4.77%	4.52%	4.14%	4.66%

Frequently Asked Questions

Can I hold both PMEFX and TIBIX in my portfolio?

PMEFX and TIBIX have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PMEFX or TIBIX?

TIBIX has higher volatility (3.06%) compared to PMEFX (0.00%). In terms of maximum drawdown, PMEFX dropped -13.27% vs TIBIX's -48.88%.

Which has better risk-adjusted returns?

TIBIX currently has the higher Sharpe Ratio (3.58 vs -0.60), 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.