PRT vs. MAIN

Last updated Jun 4, 2026

PRT (PermRock Royalty Trust) and MAIN (Main Street Capital Corporation) are both stocks. PRT operates in Oil & Gas E&P (Energy), while MAIN operates in Asset Management (Financial Services). Over the past 5 years, PRT returned -12.84%/yr vs 12.47%/yr for MAIN. At a 0.19 correlation, their price movements are largely independent.

Performance

PRT vs. MAIN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PermRock Royalty Trust (PRT) and Main Street Capital Corporation (MAIN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRT achieves a -23.88% return, which is significantly lower than MAIN's -13.65% return.

PRT

• 1D: -1.41%
• 1M: -25.43%
• YTD: -23.88%
• 6M: -44.67%
• 1Y: -43.10%
• 3Y*: -15.18%
• 5Y*: -12.84%
• 10Y*: —

MAIN

• 1D: -1.67%
• 1M: -8.64%
• YTD: -13.65%
• 6M: -11.32%
• 1Y: -3.49%
• 3Y*: 17.00%
• 5Y*: 12.47%
• 10Y*: 12.73%

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

PRT vs. MAIN - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
PRT PermRock Royalty Trust	-23.88%	-12.79%	-11.58%	-37.64%	24.09%	194.55%	-49.26%	-0.27%	-57.76%
MAIN Main Street Capital Corporation	-13.65%	10.74%	47.30%	28.22%	-11.37%	48.31%	-19.54%	36.88%	-5.07%

Correlation

The correlation between PRT and MAIN is 0.01, 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	0.01
Correlation (3Y) Calculated over the trailing 3-year period	0.11
Correlation (5Y) Calculated over the trailing 5-year period	0.16
Correlation (All Time) Calculated using the full available price history since May 3, 2018	0.19

The correlation between PRT and MAIN shifts across timeframes, from 0.01 (1 year) to 0.19 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS PRT : $0.43 MAIN : $5.22
PE Ratio PRT : 4.92 MAIN : 9.72
PS Ratio PRT : 4.22 MAIN : 6.46
Total Revenue (TTM) PRT : $4.54M MAIN : $704.17M
Gross Profit (TTM) PRT : $3.88M MAIN : $499.08M
EBITDA (TTM) PRT : $3.25M MAIN : $396.90M

Return for Risk

PRT vs. MAIN — Risk / Return Rank

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

PRT

PRT Risk / Return Rank: 4
PRT Sharpe Ratio Rank: 2
PRT Sortino Ratio Rank: 4
PRT Omega Ratio Rank: 4
PRT Calmar Ratio Rank: 10
PRT Martin Ratio Rank: 0

MAIN

MAIN Risk / Return Rank: 32
MAIN Sharpe Ratio Rank: 35
MAIN Sortino Ratio Rank: 29
MAIN Omega Ratio Rank: 29
MAIN Calmar Ratio Rank: 35
MAIN Martin Ratio Rank: 35

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.

PRT vs. MAIN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PermRock Royalty Trust (PRT) and Main Street Capital Corporation (MAIN). 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.

	PRT	MAIN	Difference
Sharpe ratio Return per unit of total volatility	-1.20	-0.14	-1.06
Sortino ratio Return per unit of downside risk	-1.75	-0.03	-1.72
Omega ratio Gain probability vs. loss probability	0.77	1.00	-0.22
Calmar ratio Return relative to maximum drawdown	-0.81	-0.16	-0.65
Martin ratio Return relative to average drawdown	-2.43	-0.33	-2.11
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PRT vs. MAIN - Sharpe Ratio Comparison

The current PRT Sharpe Ratio is -1.20, which is lower than the MAIN Sharpe Ratio of -0.14. The chart below compares the historical Sharpe Ratios of PRT and MAIN, 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

	PRT	MAIN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.20	-0.14	-1.06
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.31	0.58	-0.90
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.24	0.55	-0.79

Drawdowns

PRT vs. MAIN - Drawdown Comparison

The maximum PRT drawdown since its inception was -91.42%, which is greater than MAIN's maximum drawdown of -64.53%. Use the drawdown chart below to compare losses from any high point for PRT and MAIN.

Drawdown Indicators

	PRT	MAIN	Difference
Max Drawdown Largest peak-to-trough decline	-91.42%	-64.53%	-26.89%
Max Drawdown (1Y) Largest decline over 1 year	-53.54%	-22.43%	-31.11%
Max Drawdown (3Y) Largest decline over 3 years	-66.13%	-22.43%	-43.70%
Max Drawdown (5Y) Largest decline over 5 years	-74.28%	-27.06%	-47.22%
Max Drawdown (10Y) Largest decline over 10 years	—	-64.53%	—
Current Drawdown Current decline from peak	-73.87%	-20.74%	-53.13%
Average Drawdown Average peak-to-trough decline	-48.92%	-7.29%	-41.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	17.72%	10.72%	+7.00%

Volatility

PRT vs. MAIN - Volatility Comparison

PermRock Royalty Trust (PRT) has a higher volatility of 16.81% compared to Main Street Capital Corporation (MAIN) at 8.82%. This indicates that PRT's price experiences larger fluctuations and is considered to be riskier than MAIN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRT	MAIN	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.81%	8.82%	+7.99%
Volatility (6M) Calculated over the trailing 6-month period	34.14%	20.33%	+13.81%
Volatility (1Y) Calculated over the trailing 1-year period	35.92%	24.81%	+11.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	41.16%	21.56%	+19.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	60.36%	27.29%	+33.07%

Dividends

PRT vs. MAIN - Dividend Comparison

PRT's dividend yield for the trailing twelve months is around 11.85%, more than MAIN's 8.44% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MAIN Main Street Capital Corporation	8.44%	7.00%	7.02%	8.55%	7.97%	5.74%	6.99%	6.76%	8.43%	7.49%	7.42%	9.15%
PRT PermRock Royalty Trust	11.85%	13.88%	12.05%	11.65%	13.12%	8.66%	6.01%	13.50%	21.65%	0.00%	0.00%	0.00%

Financials

PRT vs. MAIN - Profitability Comparison

The chart below illustrates the profitability comparison between PermRock Royalty Trust and Main Street Capital Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

PRT - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, PermRock Royalty Trust reported a gross profit of 0.00 and revenue of 656.97K. Therefore, the gross margin over that period was 0.0%.

MAIN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Main Street Capital Corporation reported a gross profit of 0.00 and revenue of 140.11M. Therefore, the gross margin over that period was 0.0%.

PRT - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, PermRock Royalty Trust reported an operating income of 0.00 and revenue of 656.97K, resulting in an operating margin of 0.0%.

MAIN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Main Street Capital Corporation reported an operating income of 0.00 and revenue of 140.11M, resulting in an operating margin of 0.0%.

PRT - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, PermRock Royalty Trust reported a net income of 647.43K and revenue of 656.97K, resulting in a net margin of 98.6%.

MAIN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Main Street Capital Corporation reported a net income of 90.82M and revenue of 140.11M, resulting in a net margin of 64.8%.

Frequently Asked Questions

Can I hold both PRT and MAIN in my portfolio?

PRT and MAIN have a correlation of 0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRT or MAIN?

PRT has higher volatility (16.81%) compared to MAIN (8.82%). In terms of maximum drawdown, PRT dropped -91.42% vs MAIN's -64.53%.

Which has better risk-adjusted returns?

MAIN currently has the higher Sharpe Ratio (-0.14 vs -1.20), 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.