FNILX vs. WBREOX

Last updated Aug 5, 2026

FNILX (Fidelity ZERO Large Cap Index Fund) and WBREOX (CIT: BlackRock Equity Index Fund Class 1) are both Large Cap Blend Equities funds. Over the past year, FNILX returned 20.92% vs 21.49% for WBREOX. Their correlation of 0.80 means they have usually moved in the same direction. FNILX charges 0.00%/yr vs 0.02%/yr for WBREOX.

Performance

FNILX vs. WBREOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity ZERO Large Cap Index Fund (FNILX) and CIT: BlackRock Equity Index Fund Class 1 (WBREOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with FNILX having a 11.48% return and WBREOX slightly higher at 11.76%.

FNILX

• 1D: 1.49%
• 1M: 1.53%
• 6M: 10.57%
• YTD: 11.48%
• 1Y: 20.92%
• 3Y*: 21.06%
• 5Y*: 12.80%
• 10Y*: —
• ALL TIME*: 14.82%

WBREOX

• 1D: 2.20%
• 1M: 1.63%
• 6M: 10.49%
• YTD: 11.76%
• 1Y: 21.49%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 18.27%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FNILX Fidelity ZERO Large Cap Index Fund	$0.00	$0.00	$0.00
WBREOX CIT: BlackRock Equity Index Fund Class 1	$0.00	$0.00	$0.00

FNILX vs. WBREOX - Yearly Performance Comparison

	2026 (YTD)	2025
FNILX Fidelity ZERO Large Cap Index Fund	11.48%	18.03%
WBREOX CIT: BlackRock Equity Index Fund Class 1	11.76%	16.64%

Correlation

The correlation between FNILX and WBREOX is 0.88, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.88
Correlation (All Time) Calculated using the full available price history since Jan 3, 2025	0.80

The correlation between FNILX and WBREOX has been stable across timeframes, ranging from 0.80 to 0.88 - a consistent structural relationship.

Return for Risk

FNILX vs. WBREOX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

FNILX

FNILX Risk / Return Rank: 72
FNILX Sharpe Ratio Rank: 72
FNILX Sortino Ratio Rank: 67
FNILX Omega Ratio Rank: 66
FNILX Calmar Ratio Rank: 74
FNILX Martin Ratio Rank: 81

WBREOX

WBREOX Risk / Return Rank: 73
WBREOX Sharpe Ratio Rank: 71
WBREOX Sortino Ratio Rank: 71
WBREOX Omega Ratio Rank: 64
WBREOX Calmar Ratio Rank: 76
WBREOX Martin Ratio Rank: 83

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

FNILX vs. WBREOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity ZERO Large Cap Index Fund (FNILX) and CIT: BlackRock Equity Index Fund Class 1 (WBREOX). 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.

	FNILX	WBREOX	Difference
Sharpe ratio: Return per unit of total volatility	1.77	1.78	-0.02
Sortino ratio: Return per unit of downside risk	2.43	2.56	-0.12
Omega ratio: Gain probability vs. loss probability	1.32	1.32	0.00
Calmar ratio: Return relative to maximum drawdown	2.54	2.68	-0.14
Martin ratio: Return relative to average drawdown	10.66	11.27	-0.60

FNILX vs. WBREOX - Sharpe Ratio Comparison

The current FNILX Sharpe Ratio is 1.77, which is comparable to the WBREOX Sharpe Ratio of 1.78. The chart below compares the historical Sharpe Ratios of FNILX and WBREOX, 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

FNILX vs. WBREOX - Drawdown Comparison

The maximum FNILX drawdown since its inception was -33.76%, which is greater than WBREOX's maximum drawdown of -19.07%. Use the drawdown chart below to compare losses from any high point for FNILX and WBREOX.

Drawdown Indicators

	FNILX	WBREOX	Difference
Max Drawdown Largest peak-to-trough decline	-33.76%	-19.07%	-14.69%
Max Drawdown (1Y) Largest decline over 1 year	-9.01%	-8.89%	-0.12%
Max Drawdown (3Y) Largest decline over 3 years	-19.08%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-25.40%	—	—
Current Drawdown Current decline from peak	-0.07%	0.00%	-0.07%
Average Drawdown Average peak-to-trough decline	-5.29%	-2.51%	-2.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.14%	2.02%	+0.12%

Volatility

FNILX vs. WBREOX - Volatility Comparison

The current volatility for Fidelity ZERO Large Cap Index Fund (FNILX) is 3.83%, while CIT: BlackRock Equity Index Fund Class 1 (WBREOX) has a volatility of 4.10%. This indicates that FNILX experiences smaller price fluctuations and is considered to be less risky than WBREOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FNILX	WBREOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.83%	4.10%	-0.27%
Volatility (6M) Calculated over the trailing 6-month period	10.27%	10.24%	+0.03%
Volatility (1Y) Calculated over the trailing 1-year period	12.96%	13.39%	-0.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.38%	18.32%	-0.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.95%	18.32%	+1.63%

FNILX vs. WBREOX - Expense Ratio Comparison

FNILX has a 0.00% expense ratio, which is lower than WBREOX's 0.02% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

FNILX vs. WBREOX - Dividend Comparison

FNILX's dividend yield for the trailing twelve months is around 0.91%, while WBREOX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
FNILX Fidelity ZERO Large Cap Index Fund	0.91%	1.01%	1.09%	1.34%	1.53%	0.95%	1.20%	1.17%	0.53%
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%

Frequently Asked Questions

Can I hold both FNILX and WBREOX in my portfolio?

FNILX and WBREOX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FNILX or WBREOX?

WBREOX has higher volatility (4.10%) compared to FNILX (3.83%). In terms of maximum drawdown, FNILX dropped -33.76% vs WBREOX's -19.07%.

Which has better risk-adjusted returns?

WBREOX currently has the higher Sharpe Ratio (1.78 vs 1.77), 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.