ONERX vs. FSPGX

Last updated Jun 23, 2026

ONERX (One Rock Fund) and FSPGX (Fidelity Large Cap Growth Index Fund) are both Large Cap Growth Equities funds. Over the past 5 years, ONERX returned 33.68%/yr vs 14.30%/yr for FSPGX. Their correlation of 0.84 suggests significant overlap in exposure. ONERX charges 1.75%/yr vs 0.04%/yr for FSPGX.

Performance

ONERX vs. FSPGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in One Rock Fund (ONERX) and Fidelity Large Cap Growth Index Fund (FSPGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ONERX achieves a 66.30% return, which is significantly higher than FSPGX's 4.50% return.

ONERX

• 1D: 3.93%
• 1M: 11.37%
• YTD: 66.30%
• 6M: 59.59%
• 1Y: 124.81%
• 3Y*: 53.98%
• 5Y*: 33.68%
• 10Y*: —

FSPGX

• 1D: 1.38%
• 1M: -1.25%
• YTD: 4.50%
• 6M: 3.80%
• 1Y: 22.80%
• 3Y*: 22.67%
• 5Y*: 14.30%
• 10Y*: —

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

ONERX vs. FSPGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ONERX One Rock Fund	66.30%	49.37%	21.76%	72.41%	-42.06%	45.70%	104.46%
FSPGX Fidelity Large Cap Growth Index Fund	4.50%	18.54%	33.27%	42.77%	-29.17%	27.57%	69.54%

Correlation

The correlation between ONERX and FSPGX is 0.75, 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	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.81
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (All Time) Calculated using the full available price history since Mar 13, 2020	0.84

The correlation between ONERX and FSPGX has been stable across timeframes, ranging from 0.75 to 0.84 - a consistent structural relationship.

Return for Risk

ONERX vs. FSPGX — Risk / Return Rank

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

ONERX

ONERX Risk / Return Rank: 87
ONERX Sharpe Ratio Rank: 96
ONERX Sortino Ratio Rank: 72
ONERX Omega Ratio Rank: 75
ONERX Calmar Ratio Rank: 98
ONERX Martin Ratio Rank: 97

FSPGX

FSPGX Risk / Return Rank: 22
FSPGX Sharpe Ratio Rank: 26
FSPGX Sortino Ratio Rank: 24
FSPGX Omega Ratio Rank: 25
FSPGX Calmar Ratio Rank: 17
FSPGX Martin Ratio Rank: 19

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.

ONERX vs. FSPGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for One Rock Fund (ONERX) and Fidelity Large Cap Growth Index Fund (FSPGX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	ONERX	FSPGX	Difference
Sharpe ratio: Return per unit of total volatility	3.11	1.38	+1.74
Sortino ratio: Return per unit of downside risk	3.20	1.90	+1.30
Omega ratio: Gain probability vs. loss probability	1.45	1.24	+0.20
Calmar ratio: Return relative to maximum drawdown	7.07	1.37	+5.70
Martin ratio: Return relative to average drawdown	23.95	4.51	+19.44

ONERX vs. FSPGX - Sharpe Ratio Comparison

The current ONERX Sharpe Ratio is 3.11, which is higher than the FSPGX Sharpe Ratio of 1.38. The chart below compares the historical Sharpe Ratios of ONERX and FSPGX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

ONERX vs. FSPGX - Drawdown Comparison

The maximum ONERX drawdown since its inception was -47.44%, which is greater than FSPGX's maximum drawdown of -32.66%. Use the drawdown chart below to compare losses from any high point for ONERX and FSPGX.

Drawdown Indicators

	ONERX	FSPGX	Difference
Max Drawdown Largest peak-to-trough decline	-47.44%	-32.66%	-14.78%
Max Drawdown (1Y) Largest decline over 1 year	-17.63%	-16.17%	-1.46%
Max Drawdown (3Y) Largest decline over 3 years	-47.44%	-23.32%	-24.12%
Max Drawdown (5Y) Largest decline over 5 years	-47.44%	-32.66%	-14.78%
Current Drawdown Current decline from peak	-0.30%	-4.14%	+3.84%
Average Drawdown Average peak-to-trough decline	-13.73%	-6.36%	-7.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.19%	4.91%	+0.28%

Volatility

ONERX vs. FSPGX - Volatility Comparison

One Rock Fund (ONERX) has a higher volatility of 15.34% compared to Fidelity Large Cap Growth Index Fund (FSPGX) at 5.97%. This indicates that ONERX's price experiences larger fluctuations and is considered to be riskier than FSPGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ONERX	FSPGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.34%	5.97%	+9.37%
Volatility (6M) Calculated over the trailing 6-month period	32.11%	12.68%	+19.43%
Volatility (1Y) Calculated over the trailing 1-year period	40.06%	16.13%	+23.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	39.57%	21.60%	+17.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.44%	21.56%	+16.88%

ONERX vs. FSPGX - Expense Ratio Comparison

ONERX has a 1.75% expense ratio, which is higher than FSPGX's 0.04% expense ratio.

Dividends

ONERX vs. FSPGX - Dividend Comparison

ONERX's dividend yield for the trailing twelve months is around 14.50%, more than FSPGX's 0.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSPGX Fidelity Large Cap Growth Index Fund	0.33%	0.34%	0.37%	0.73%	0.86%	2.22%	1.76%	1.04%	1.32%	0.22%
ONERX One Rock Fund	14.50%	24.12%	0.00%	0.00%	10.57%	28.88%	18.66%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both ONERX and FSPGX in my portfolio?

ONERX and FSPGX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ONERX or FSPGX?

ONERX has higher volatility (15.34%) compared to FSPGX (5.97%). In terms of maximum drawdown, ONERX dropped -47.44% vs FSPGX's -32.66%.

Which has better risk-adjusted returns?

ONERX currently has the higher Sharpe Ratio (3.11 vs 1.38), 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.