WBREOX vs. RCKSX

Last updated Jun 4, 2026

WBREOX (CIT: BlackRock Equity Index Fund Class 1) and RCKSX (Rock Oak Core Growth Fund) are both Large Cap Blend Equities funds. Over the past year, WBREOX returned 28.98% vs 20.18% for RCKSX. A 0.51 correlation means they provide meaningful diversification when combined. WBREOX charges 0.02%/yr vs 1.25%/yr for RCKSX.

Performance

WBREOX vs. RCKSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in CIT: BlackRock Equity Index Fund Class 1 (WBREOX) and Rock Oak Core Growth Fund (RCKSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WBREOX achieves a 11.70% return, which is significantly lower than RCKSX's 14.10% return.

WBREOX

• 1D: 0.13%
• 1M: 5.80%
• YTD: 11.70%
• 6M: 11.74%
• 1Y: 28.98%
• 3Y*: —
• 5Y*: —
• 10Y*: —

RCKSX

• 1D: -0.13%
• 1M: 1.87%
• YTD: 14.10%
• 6M: 14.42%
• 1Y: 20.18%
• 3Y*: 19.62%
• 5Y*: 7.42%
• 10Y*: 10.85%

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

WBREOX vs. RCKSX - Yearly Performance Comparison

	2026 (YTD)	2025
WBREOX CIT: BlackRock Equity Index Fund Class 1	11.70%	16.64%
RCKSX Rock Oak Core Growth Fund	14.10%	12.46%

Correlation

The correlation between WBREOX and RCKSX is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (All Time) Calculated using the full available price history since Jan 6, 2025	0.51

The correlation between WBREOX and RCKSX has been stable across timeframes, ranging from 0.49 to 0.51 - a consistent structural relationship.

Return for Risk

WBREOX vs. RCKSX — Risk / Return Rank

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

WBREOX

WBREOX Risk / Return Rank: 84
WBREOX Sharpe Ratio Rank: 86
WBREOX Sortino Ratio Rank: 83
WBREOX Omega Ratio Rank: 78
WBREOX Calmar Ratio Rank: 83
WBREOX Martin Ratio Rank: 88

RCKSX

RCKSX Risk / Return Rank: 56
RCKSX Sharpe Ratio Rank: 39
RCKSX Sortino Ratio Rank: 40
RCKSX Omega Ratio Rank: 34
RCKSX Calmar Ratio Rank: 93
RCKSX Martin Ratio Rank: 75

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.

WBREOX vs. RCKSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for CIT: BlackRock Equity Index Fund Class 1 (WBREOX) and Rock Oak Core Growth Fund (RCKSX). 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.

	WBREOX	RCKSX	Difference
Sharpe ratio: Return per unit of total volatility	2.80	1.83	+0.97
Sortino ratio: Return per unit of downside risk	3.94	2.66	+1.28
Omega ratio: Gain probability vs. loss probability	1.51	1.31	+0.20
Calmar ratio: Return relative to maximum drawdown	3.85	5.11	-1.26
Martin ratio: Return relative to average drawdown	17.42	14.18	+3.24
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WBREOX vs. RCKSX - Sharpe Ratio Comparison

The current WBREOX Sharpe Ratio is 2.80, which is higher than the RCKSX Sharpe Ratio of 1.83. The chart below compares the historical Sharpe Ratios of WBREOX and RCKSX, 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

	WBREOX	RCKSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.80	1.83	+0.97
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.48	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.62	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.26	0.38	+0.88

Drawdowns

WBREOX vs. RCKSX - Drawdown Comparison

The maximum WBREOX drawdown since its inception was -19.07%, smaller than the maximum RCKSX drawdown of -57.88%. Use the drawdown chart below to compare losses from any high point for WBREOX and RCKSX.

Drawdown Indicators

	WBREOX	RCKSX	Difference
Max Drawdown Largest peak-to-trough decline	-19.07%	-57.88%	+38.81%
Max Drawdown (1Y) Largest decline over 1 year	-8.89%	-4.14%	-4.75%
Max Drawdown (3Y) Largest decline over 3 years	—	-18.22%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-22.54%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-33.10%	—
Current Drawdown Current decline from peak	0.00%	-0.60%	+0.60%
Average Drawdown Average peak-to-trough decline	-2.60%	-9.51%	+6.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.89%	1.49%	+0.40%

Volatility

WBREOX vs. RCKSX - Volatility Comparison

CIT: BlackRock Equity Index Fund Class 1 (WBREOX) and Rock Oak Core Growth Fund (RCKSX) have volatilities of 2.83% and 2.94%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WBREOX	RCKSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.83%	2.94%	-0.11%
Volatility (6M) Calculated over the trailing 6-month period	9.40%	8.06%	+1.34%
Volatility (1Y) Calculated over the trailing 1-year period	12.22%	11.56%	+0.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.64%	15.66%	+2.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.64%	17.55%	+1.09%

WBREOX vs. RCKSX - Expense Ratio Comparison

WBREOX has a 0.02% expense ratio, which is lower than RCKSX's 1.25% expense ratio.

Dividends

WBREOX vs. RCKSX - Dividend Comparison

WBREOX has not paid dividends to shareholders, while RCKSX's dividend yield for the trailing twelve months is around 5.48%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RCKSX Rock Oak Core Growth Fund	5.48%	6.26%	0.47%	0.71%	1.00%	4.31%	16.56%	3.18%	0.59%	5.91%	0.70%	3.21%
WBREOX CIT: BlackRock Equity Index Fund Class 1	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both WBREOX and RCKSX in my portfolio?

WBREOX and RCKSX have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WBREOX or RCKSX?

RCKSX has higher volatility (2.94%) compared to WBREOX (2.83%). In terms of maximum drawdown, WBREOX dropped -19.07% vs RCKSX's -57.88%.

Which has better risk-adjusted returns?

WBREOX currently has the higher Sharpe Ratio (2.80 vs 1.83), 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.