BAMY vs. TSPX

Last updated Jun 4, 2026

BAMY (Brookstone Yield ETF) and TSPX (Twin Oak Active Opportunities ETF) are both Diversified Portfolio funds. Both are actively managed. Over the past year, BAMY returned 10.68% vs 21.31% for TSPX. Their correlation of 0.83 suggests significant overlap in exposure. BAMY charges 1.48%/yr vs 1.01%/yr for TSPX.

Performance

BAMY vs. TSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Brookstone Yield ETF (BAMY) and Twin Oak Active Opportunities ETF (TSPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BAMY achieves a 1.16% return, which is significantly lower than TSPX's 8.22% return.

BAMY

• 1D: -0.21%
• 1M: 0.31%
• YTD: 1.16%
• 6M: 1.80%
• 1Y: 10.68%
• 3Y*: —
• 5Y*: —
• 10Y*: —

TSPX

• 1D: -0.51%
• 1M: 4.02%
• YTD: 8.22%
• 6M: 8.64%
• 1Y: 21.31%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BAMY vs. TSPX - Yearly Performance Comparison

	2026 (YTD)	2025
BAMY Brookstone Yield ETF	1.16%	11.57%
TSPX Twin Oak Active Opportunities ETF	8.22%	15.46%

Correlation

The correlation between BAMY and TSPX is 0.84, 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	0.84
Correlation (All Time) Calculated using the full available price history since Feb 24, 2025	0.83

The correlation between BAMY and TSPX has been stable across timeframes, ranging from 0.83 to 0.84 - a consistent structural relationship.

Return for Risk

BAMY vs. TSPX — Risk / Return Rank

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

BAMY

BAMY Risk / Return Rank: 79
BAMY Sharpe Ratio Rank: 71
BAMY Sortino Ratio Rank: 75
BAMY Omega Ratio Rank: 81
BAMY Calmar Ratio Rank: 82
BAMY Martin Ratio Rank: 88

TSPX

TSPX Risk / Return Rank: 72
TSPX Sharpe Ratio Rank: 72
TSPX Sortino Ratio Rank: 73
TSPX Omega Ratio Rank: 73
TSPX Calmar Ratio Rank: 64
TSPX Martin Ratio Rank: 77

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.

BAMY vs. TSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Brookstone Yield ETF (BAMY) and Twin Oak Active Opportunities ETF (TSPX). 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.

	BAMY	TSPX	Difference
Sharpe ratio: Return per unit of total volatility	2.33	2.35	-0.02
Sortino ratio: Return per unit of downside risk	3.39	3.29	+0.10
Omega ratio: Gain probability vs. loss probability	1.49	1.43	+0.06
Calmar ratio: Return relative to maximum drawdown	4.32	3.14	+1.18
Martin ratio: Return relative to average drawdown	19.33	14.68	+4.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BAMY vs. TSPX - Sharpe Ratio Comparison

The current BAMY Sharpe Ratio is 2.33, which is comparable to the TSPX Sharpe Ratio of 2.35. The chart below compares the historical Sharpe Ratios of BAMY and TSPX, 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

	BAMY	TSPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.33	2.35	-0.02
Sharpe Ratio (All Time) Calculated using the full available price history	1.87	1.77	+0.10

Drawdowns

BAMY vs. TSPX - Drawdown Comparison

The maximum BAMY drawdown since its inception was -6.03%, smaller than the maximum TSPX drawdown of -7.80%. Use the drawdown chart below to compare losses from any high point for BAMY and TSPX.

Drawdown Indicators

	BAMY	TSPX	Difference
Max Drawdown Largest peak-to-trough decline	-6.03%	-7.80%	+1.77%
Max Drawdown (1Y) Largest decline over 1 year	-2.48%	-6.81%	+4.33%
Current Drawdown Current decline from peak	-0.24%	-0.51%	+0.27%
Average Drawdown Average peak-to-trough decline	-0.53%	-1.18%	+0.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.55%	1.46%	-0.91%

Volatility

BAMY vs. TSPX - Volatility Comparison

The current volatility for Brookstone Yield ETF (BAMY) is 1.09%, while Twin Oak Active Opportunities ETF (TSPX) has a volatility of 2.29%. This indicates that BAMY experiences smaller price fluctuations and is considered to be less risky than TSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BAMY	TSPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.09%	2.29%	-1.20%
Volatility (6M) Calculated over the trailing 6-month period	2.80%	7.08%	-4.28%
Volatility (1Y) Calculated over the trailing 1-year period	4.62%	9.13%	-4.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.03%	10.80%	-4.77%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.03%	10.80%	-4.77%

BAMY vs. TSPX - Expense Ratio Comparison

BAMY has a 1.48% expense ratio, which is higher than TSPX's 1.01% expense ratio.

Dividends

BAMY vs. TSPX - Dividend Comparison

BAMY's dividend yield for the trailing twelve months is around 7.59%, more than TSPX's 1.99% yield.

Position	TTM	2025	2024	2023
BAMY Brookstone Yield ETF	7.59%	7.16%	8.20%	1.96%
TSPX Twin Oak Active Opportunities ETF	1.99%	2.15%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BAMY and TSPX in my portfolio?

BAMY and TSPX have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BAMY or TSPX?

TSPX has higher volatility (2.29%) compared to BAMY (1.09%). In terms of maximum drawdown, BAMY dropped -6.03% vs TSPX's -7.80%.

Which ETF is better, BAMY or TSPX?

On 1-year performance, TSPX leads with 21.31% vs 10.68% for BAMY. On fees, TSPX is cheaper at 1.01% per year. On volatility, BAMY has been the lower-risk option at 1.09%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BAMY or TSPX?

Over the 1-year period, TSPX has performed better with a 21.31% return vs 10.68%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BAMY or TSPX?

TSPX is cheaper with a 1.01% expense ratio, compared with 1.48% for BAMY.

Which ETF pays a higher dividend yield, BAMY or TSPX?

BAMY has the higher dividend yield at 7.59%, compared with 1.99% for TSPX.

What is the main difference between BAMY and TSPX?

They also come from different issuers: Brookstone and Twin Oak. Their fees differ too: 1.48% for BAMY and 1.01% for TSPX.

Which has better risk-adjusted returns?

TSPX currently has the higher Sharpe Ratio (2.35 vs 2.33), 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.