INSAX vs. VPMCX

Last updated Jun 5, 2026

INSAX (Catalyst Insider Buying Fund) and VPMCX (Vanguard PRIMECAP Fund Investor Shares) are both Large Cap Growth Equities funds. Over the past 10 years, INSAX returned 7.78%/yr vs 17.59%/yr for VPMCX. A 0.75 correlation means they provide meaningful diversification when combined. INSAX charges 1.53%/yr vs 0.38%/yr for VPMCX.

Performance

INSAX vs. VPMCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Catalyst Insider Buying Fund (INSAX) and Vanguard PRIMECAP Fund Investor Shares (VPMCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, INSAX achieves a 16.65% return, which is significantly lower than VPMCX's 25.64% return. Over the past 10 years, INSAX has underperformed VPMCX with an annualized return of 7.78%, while VPMCX has yielded a comparatively higher 17.59% annualized return.

INSAX

• 1D: 0.07%
• 1M: 9.06%
• YTD: 16.65%
• 6M: 14.05%
• 1Y: 23.13%
• 3Y*: 26.02%
• 5Y*: 5.25%
• 10Y*: 7.78%

VPMCX

• 1D: 0.19%
• 1M: 10.35%
• YTD: 25.64%
• 6M: 27.62%
• 1Y: 58.49%
• 3Y*: 28.08%
• 5Y*: 16.24%
• 10Y*: 17.59%

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

INSAX vs. VPMCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
INSAX Catalyst Insider Buying Fund	16.65%	15.39%	23.86%	31.44%	-32.65%	-17.65%	14.36%	23.91%	-2.91%	17.03%
VPMCX Vanguard PRIMECAP Fund Investor Shares	25.64%	29.60%	13.23%	28.16%	-15.22%	21.64%	17.16%	27.78%	-1.99%	28.17%

Correlation

The correlation between INSAX and VPMCX is 0.69, 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	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.73
Correlation (5Y) Calculated over the trailing 5-year period	0.75
Correlation (10Y) Calculated over the trailing 10-year period	0.71
Correlation (All Time) Calculated using the full available price history since Jan 4, 2012	0.75

The correlation between INSAX and VPMCX has been stable across timeframes, ranging from 0.69 to 0.75 - a consistent structural relationship.

Return for Risk

INSAX vs. VPMCX — Risk / Return Rank

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

INSAX

INSAX Risk / Return Rank: 12
INSAX Sharpe Ratio Rank: 12
INSAX Sortino Ratio Rank: 13
INSAX Omega Ratio Rank: 13
INSAX Calmar Ratio Rank: 11
INSAX Martin Ratio Rank: 9

VPMCX

VPMCX Risk / Return Rank: 94
VPMCX Sharpe Ratio Rank: 97
VPMCX Sortino Ratio Rank: 94
VPMCX Omega Ratio Rank: 89
VPMCX Calmar Ratio Rank: 92
VPMCX Martin Ratio Rank: 96

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.

INSAX vs. VPMCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Catalyst Insider Buying Fund (INSAX) and Vanguard PRIMECAP Fund Investor Shares (VPMCX). 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.

	INSAX	VPMCX	Difference
Sharpe ratio: Return per unit of total volatility	0.89	3.71	-2.82
Sortino ratio: Return per unit of downside risk	1.43	5.00	-3.57
Omega ratio: Gain probability vs. loss probability	1.18	1.65	-0.47
Calmar ratio: Return relative to maximum drawdown	1.04	5.06	-4.03
Martin ratio: Return relative to average drawdown	2.56	23.33	-20.77
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

INSAX vs. VPMCX - Sharpe Ratio Comparison

The current INSAX Sharpe Ratio is 0.89, which is lower than the VPMCX Sharpe Ratio of 3.71. The chart below compares the historical Sharpe Ratios of INSAX and VPMCX, 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

	INSAX	VPMCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.89	3.71	-2.82
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.18	0.89	-0.72
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.30	0.92	-0.62
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	0.81	-0.47

Drawdowns

INSAX vs. VPMCX - Drawdown Comparison

The maximum INSAX drawdown since its inception was -59.24%, which is greater than VPMCX's maximum drawdown of -50.45%. Use the drawdown chart below to compare losses from any high point for INSAX and VPMCX.

Drawdown Indicators

	INSAX	VPMCX	Difference
Max Drawdown Largest peak-to-trough decline	-59.24%	-50.45%	-8.79%
Max Drawdown (1Y) Largest decline over 1 year	-23.44%	-11.73%	-11.71%
Max Drawdown (3Y) Largest decline over 3 years	-23.44%	-20.56%	-2.88%
Max Drawdown (5Y) Largest decline over 5 years	-57.26%	-25.25%	-32.01%
Max Drawdown (10Y) Largest decline over 10 years	-59.24%	-32.65%	-26.59%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-13.84%	-7.40%	-6.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.46%	2.54%	+6.92%

Volatility

INSAX vs. VPMCX - Volatility Comparison

Catalyst Insider Buying Fund (INSAX) has a higher volatility of 7.03% compared to Vanguard PRIMECAP Fund Investor Shares (VPMCX) at 6.13%. This indicates that INSAX's price experiences larger fluctuations and is considered to be riskier than VPMCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	INSAX	VPMCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.03%	6.13%	+0.90%
Volatility (6M) Calculated over the trailing 6-month period	22.20%	12.83%	+9.37%
Volatility (1Y) Calculated over the trailing 1-year period	27.28%	16.02%	+11.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.85%	18.25%	+11.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.16%	19.19%	+6.97%

INSAX vs. VPMCX - Expense Ratio Comparison

INSAX has a 1.53% expense ratio, which is higher than VPMCX's 0.38% expense ratio.

Dividends

INSAX vs. VPMCX - Dividend Comparison

INSAX has not paid dividends to shareholders, while VPMCX's dividend yield for the trailing twelve months is around 13.02%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
INSAX Catalyst Insider Buying Fund	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VPMCX Vanguard PRIMECAP Fund Investor Shares	13.02%	16.36%	6.62%	7.16%	9.85%	10.08%	9.74%	7.15%	8.32%	4.53%	5.05%	5.91%

Frequently Asked Questions

Can I hold both INSAX and VPMCX in my portfolio?

INSAX and VPMCX have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, INSAX or VPMCX?

INSAX has higher volatility (7.03%) compared to VPMCX (6.13%). In terms of maximum drawdown, INSAX dropped -59.24% vs VPMCX's -50.45%.

Which has better risk-adjusted returns?

VPMCX currently has the higher Sharpe Ratio (3.71 vs 0.89), 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.