BWNYX vs. TARKX

Last updated Jun 6, 2026

BWNYX (Bullfinch Greater Western New York Series) and TARKX (Tarkio Fund) are both Mid Cap Blend Equities funds. Over the past 10 years, BWNYX returned 5.87%/yr vs 14.98%/yr for TARKX. A 0.79 correlation means they provide meaningful diversification when combined. BWNYX charges 1.52%/yr vs 1.00%/yr for TARKX.

Performance

BWNYX vs. TARKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bullfinch Greater Western New York Series (BWNYX) and Tarkio Fund (TARKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BWNYX achieves a 15.06% return, which is significantly lower than TARKX's 22.81% return. Over the past 10 years, BWNYX has underperformed TARKX with an annualized return of 5.87%, while TARKX has yielded a comparatively higher 14.98% annualized return.

BWNYX

• 1D: 1.19%
• 1M: 4.31%
• YTD: 15.06%
• 6M: 1.38%
• 1Y: 17.35%
• 3Y*: 12.88%
• 5Y*: 5.90%
• 10Y*: 5.87%

TARKX

• 1D: 0.12%
• 1M: 1.41%
• YTD: 22.81%
• 6M: 23.15%
• 1Y: 61.40%
• 3Y*: 29.63%
• 5Y*: 10.65%
• 10Y*: 14.98%

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

BWNYX vs. TARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BWNYX Bullfinch Greater Western New York Series	15.06%	7.26%	8.05%	10.48%	-6.99%	13.00%	1.48%	18.83%	-8.10%	0.73%
TARKX Tarkio Fund	22.81%	30.18%	21.72%	26.33%	-30.39%	24.41%	27.00%	29.54%	-23.30%	29.04%

Correlation

The correlation between BWNYX and TARKX is 0.64, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.64
Correlation (3Y) Calculated over the trailing 3-year period	0.67
Correlation (5Y) Calculated over the trailing 5-year period	0.73
Correlation (10Y) Calculated over the trailing 10-year period	0.75
Correlation (All Time) Calculated using the full available price history since Jul 1, 2011	0.79

The correlation between BWNYX and TARKX shifts across timeframes, from 0.64 (1 year) to 0.79 (all time), reflecting how their relationship changes across market environments.

Return for Risk

BWNYX vs. TARKX — Risk / Return Rank

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

BWNYX

BWNYX Risk / Return Rank: 15
BWNYX Sharpe Ratio Rank: 14
BWNYX Sortino Ratio Rank: 11
BWNYX Omega Ratio Rank: 23
BWNYX Calmar Ratio Rank: 16
BWNYX Martin Ratio Rank: 12

TARKX

TARKX Risk / Return Rank: 63
TARKX Sharpe Ratio Rank: 61
TARKX Sortino Ratio Rank: 51
TARKX Omega Ratio Rank: 49
TARKX Calmar Ratio Rank: 82
TARKX Martin Ratio Rank: 74

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.

BWNYX vs. TARKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bullfinch Greater Western New York Series (BWNYX) and Tarkio Fund (TARKX). 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.

	BWNYX	TARKX	Difference
Sharpe ratio: Return per unit of total volatility	0.97	2.25	-1.28
Sortino ratio: Return per unit of downside risk	1.22	2.92	-1.70
Omega ratio: Gain probability vs. loss probability	1.24	1.37	-0.13
Calmar ratio: Return relative to maximum drawdown	1.34	3.63	-2.29
Martin ratio: Return relative to average drawdown	3.35	13.51	-10.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BWNYX vs. TARKX - Sharpe Ratio Comparison

The current BWNYX Sharpe Ratio is 0.97, which is lower than the TARKX Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of BWNYX and TARKX, 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

	BWNYX	TARKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.97	2.25	-1.28
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.37	0.39	-0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.37	0.56	-0.19
Sharpe Ratio (All Time) Calculated using the full available price history	0.22	0.55	-0.33

Drawdowns

BWNYX vs. TARKX - Drawdown Comparison

The maximum BWNYX drawdown since its inception was -51.03%, which is greater than TARKX's maximum drawdown of -40.55%. Use the drawdown chart below to compare losses from any high point for BWNYX and TARKX.

Drawdown Indicators

	BWNYX	TARKX	Difference
Max Drawdown Largest peak-to-trough decline	-51.03%	-40.55%	-10.48%
Max Drawdown (1Y) Largest decline over 1 year	-15.09%	-16.99%	+1.90%
Max Drawdown (3Y) Largest decline over 3 years	-18.04%	-36.99%	+18.95%
Max Drawdown (5Y) Largest decline over 5 years	-18.04%	-40.38%	+22.34%
Max Drawdown (10Y) Largest decline over 10 years	-31.18%	-40.55%	+9.37%
Current Drawdown Current decline from peak	-2.30%	-1.55%	-0.75%
Average Drawdown Average peak-to-trough decline	-7.59%	-10.36%	+2.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.67%	4.56%	+1.11%

Volatility

BWNYX vs. TARKX - Volatility Comparison

The current volatility for Bullfinch Greater Western New York Series (BWNYX) is 4.24%, while Tarkio Fund (TARKX) has a volatility of 8.53%. This indicates that BWNYX experiences smaller price fluctuations and is considered to be less risky than TARKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BWNYX	TARKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.24%	8.53%	-4.29%
Volatility (6M) Calculated over the trailing 6-month period	18.25%	21.01%	-2.76%
Volatility (1Y) Calculated over the trailing 1-year period	20.86%	27.45%	-6.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.39%	27.55%	-11.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.21%	26.67%	-10.46%

BWNYX vs. TARKX - Expense Ratio Comparison

BWNYX has a 1.52% expense ratio, which is higher than TARKX's 1.00% expense ratio.

Dividends

BWNYX vs. TARKX - Dividend Comparison

BWNYX has not paid dividends to shareholders, while TARKX's dividend yield for the trailing twelve months is around 4.48%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BWNYX Bullfinch Greater Western New York Series	0.00%	0.00%	0.00%	0.66%	1.87%	2.58%	5.75%	0.11%	0.16%	0.27%	0.00%	0.00%
TARKX Tarkio Fund	4.48%	5.50%	1.51%	2.98%	10.62%	1.40%	0.50%	5.21%	3.34%	1.70%	0.47%	0.36%

Frequently Asked Questions

Can I hold both BWNYX and TARKX in my portfolio?

BWNYX and TARKX have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BWNYX or TARKX?

TARKX has higher volatility (8.53%) compared to BWNYX (4.24%). In terms of maximum drawdown, BWNYX dropped -51.03% vs TARKX's -40.55%.

Which has better risk-adjusted returns?

TARKX currently has the higher Sharpe Ratio (2.25 vs 0.97), 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.