PTMN vs. OXSQ

Last updated Apr 1, 2026

Compare and contrast key facts about Portman Ridge Finance Corporation (PTMN) and Oxford Square Capital Corp. (OXSQ).

Performance

PTMN vs. OXSQ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Portman Ridge Finance Corporation (PTMN) and Oxford Square Capital Corp. (OXSQ). The values are adjusted to include any dividend payments, if applicable.

PTMN vs. OXSQ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
PTMN Portman Ridge Finance Corporation	-33.92%	-15.84%	3.87%	-8.99%	3.80%	43.54%	7.18%	-16.58%	22.64%
OXSQ Oxford Square Capital Corp.	6.44%	-13.32%	-1.86%	7.92%	-14.37%	47.13%	-32.37%	-4.32%	16.80%

Fundamentals

Market Cap PTMN : $83.44M OXSQ : $137.08M
EPS PTMN : -$0.80 OXSQ : -$0.24
PS Ratio PTMN : 2.16 OXSQ : 11.26
PB Ratio PTMN : 0.40 OXSQ : 0.94
Total Revenue (TTM) PTMN : $38.31M OXSQ : $12.05M
Gross Profit (TTM) PTMN : -$638.00K OXSQ : $4.41M
EBITDA (TTM) PTMN : $15.63M OXSQ : -$15.93M

Returns By Period

In the year-to-date period, PTMN achieves a -33.92% return, which is significantly lower than OXSQ's 6.44% return.

PTMN

• 1D: 1.21%
• 1M: -30.52%
• YTD: -33.92%
• 6M: -29.61%
• 1Y: -38.91%
• 3Y*: -17.17%
• 5Y*: -7.70%
• 10Y*: -0.41%

OXSQ

• 1D: 2.31%
• 1M: 2.04%
• YTD: 6.44%
• 6M: 24.60%
• 1Y: -17.03%
• 3Y*: -2.20%
• 5Y*: -4.45%
• 10Y*: —

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

Return for Risk

PTMN vs. OXSQ — Risk / Return Rank

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

PTMN

PTMN Risk / Return Rank: 3
PTMN Sharpe Ratio Rank: 1
PTMN Sortino Ratio Rank: 3
PTMN Omega Ratio Rank: 3
PTMN Calmar Ratio Rank: 8
PTMN Martin Ratio Rank: 0

OXSQ

OXSQ Risk / Return Rank: 21
OXSQ Sharpe Ratio Rank: 17
OXSQ Sortino Ratio Rank: 17
OXSQ Omega Ratio Rank: 18
OXSQ Calmar Ratio Rank: 28
OXSQ Martin Ratio Rank: 26

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.

PTMN vs. OXSQ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Portman Ridge Finance Corporation (PTMN) and Oxford Square Capital Corp. (OXSQ). 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.

	PTMN	OXSQ	Difference
Sharpe ratio Return per unit of total volatility	-1.31	-0.56	-0.75
Sortino ratio Return per unit of downside risk	-1.82	-0.65	-1.16
Omega ratio Gain probability vs. loss probability	0.75	0.92	-0.17
Calmar ratio Return relative to maximum drawdown	-0.89	-0.45	-0.45
Martin ratio Return relative to average drawdown	-2.65	-0.92	-1.73
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PTMN vs. OXSQ - Sharpe Ratio Comparison

The current PTMN Sharpe Ratio is -1.31, which is lower than the OXSQ Sharpe Ratio of -0.56. The chart below compares the historical Sharpe Ratios of PTMN and OXSQ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	PTMN	OXSQ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.31	-0.56	-0.75
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.37	-0.18	-0.18
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.01	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.04	-0.03	-0.01

Correlation

The correlation between PTMN and OXSQ is 0.17, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

PTMN vs. OXSQ - Dividend Comparison

PTMN's dividend yield for the trailing twelve months is around 23.27%, less than OXSQ's 23.73% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PTMN Portman Ridge Finance Corporation	23.27%	16.65%	16.89%	15.12%	11.13%	9.77%	12.57%	46.68%	11.56%	14.08%	15.08%	15.48%
OXSQ Oxford Square Capital Corp.	23.73%	23.86%	17.21%	17.66%	13.46%	10.29%	20.07%	14.76%	9.27%	0.00%	0.00%	0.00%

Drawdowns

PTMN vs. OXSQ - Drawdown Comparison

The maximum PTMN drawdown since its inception was -91.49%, which is greater than OXSQ's maximum drawdown of -67.11%. Use the drawdown chart below to compare losses from any high point for PTMN and OXSQ.

Drawdown Indicators

	PTMN	OXSQ	Difference
Max Drawdown Largest peak-to-trough decline	-91.49%	-67.11%	-24.38%
Max Drawdown (1Y) Largest decline over 1 year	-43.57%	-34.58%	-8.99%
Max Drawdown (5Y) Largest decline over 5 years	-52.72%	-43.86%	-8.86%
Max Drawdown (10Y) Largest decline over 10 years	-74.57%	—	—
Current Drawdown Current decline from peak	-56.64%	-30.82%	-25.82%
Average Drawdown Average peak-to-trough decline	-35.55%	-20.80%	-14.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	14.68%	16.67%	-1.99%

Volatility

PTMN vs. OXSQ - Volatility Comparison

Portman Ridge Finance Corporation (PTMN) has a higher volatility of 17.44% compared to Oxford Square Capital Corp. (OXSQ) at 7.16%. This indicates that PTMN's price experiences larger fluctuations and is considered to be riskier than OXSQ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PTMN	OXSQ	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.44%	7.16%	+10.28%
Volatility (6M) Calculated over the trailing 6-month period	24.50%	23.72%	+0.78%
Volatility (1Y) Calculated over the trailing 1-year period	29.76%	30.67%	-0.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.17%	24.60%	-3.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.25%	34.56%	-2.31%

Financials