FITLX vs. FSPGX

Last updated Jun 4, 2026

FITLX (Fidelity US Sustainability Index Fund) and FSPGX (Fidelity Large Cap Growth Index Fund) are both mutual funds - FITLX is a Large Cap Blend Equities fund managed by Fidelity, while FSPGX is a Large Cap Growth Equities fund managed by Fidelity. Over the past 5 years, FITLX returned 14.20%/yr vs 16.03%/yr for FSPGX. Their correlation of 0.94 suggests significant overlap in exposure. FITLX charges 0.11%/yr vs 0.04%/yr for FSPGX.

Performance

FITLX vs. FSPGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity US Sustainability Index Fund (FITLX) 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, FITLX achieves a 10.47% return, which is significantly higher than FSPGX's 8.60% return.

FITLX

• 1D: -0.44%
• 1M: 5.58%
• YTD: 10.47%
• 6M: 11.11%
• 1Y: 28.82%
• 3Y*: 22.72%
• 5Y*: 14.20%
• 10Y*: —

FSPGX

• 1D: -0.38%
• 1M: 7.10%
• YTD: 8.60%
• 6M: 7.98%
• 1Y: 27.43%
• 3Y*: 25.53%
• 5Y*: 16.03%
• 10Y*: —

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

FITLX vs. FSPGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FITLX Fidelity US Sustainability Index Fund	10.47%	18.77%	23.59%	29.04%	-20.28%	31.55%	18.69%	31.54%	-3.32%	13.07%
FSPGX Fidelity Large Cap Growth Index Fund	8.60%	18.54%	33.27%	42.77%	-29.17%	27.57%	38.46%	36.38%	-1.79%	14.51%

Correlation

The correlation between FITLX and FSPGX is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (All Time) Calculated using the full available price history since May 10, 2017	0.94

The correlation between FITLX and FSPGX has been stable across timeframes, ranging from 0.92 to 0.95 - a consistent structural relationship.

Return for Risk

FITLX vs. FSPGX — Risk / Return Rank

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

FITLX

FITLX Risk / Return Rank: 57
FITLX Sharpe Ratio Rank: 63
FITLX Sortino Ratio Rank: 59
FITLX Omega Ratio Rank: 57
FITLX Calmar Ratio Rank: 49
FITLX Martin Ratio Rank: 58

FSPGX

FSPGX Risk / Return Rank: 32
FSPGX Sharpe Ratio Rank: 41
FSPGX Sortino Ratio Rank: 36
FSPGX Omega Ratio Rank: 37
FSPGX Calmar Ratio Rank: 22
FSPGX Martin Ratio Rank: 23

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.

FITLX vs. FSPGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity US Sustainability Index Fund (FITLX) 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.

	FITLX	FSPGX	Difference
Sharpe ratio Return per unit of total volatility	2.33	1.85	+0.48
Sortino ratio Return per unit of downside risk	3.23	2.50	+0.73
Omega ratio Gain probability vs. loss probability	1.42	1.32	+0.10
Calmar ratio Return relative to maximum drawdown	2.67	1.76	+0.91
Martin ratio Return relative to average drawdown	11.60	5.90	+5.70
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FITLX vs. FSPGX - Sharpe Ratio Comparison

The current FITLX Sharpe Ratio is 2.33, which is comparable to the FSPGX Sharpe Ratio of 1.85. The chart below compares the historical Sharpe Ratios of FITLX 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.

Sharpe Ratios by Period

	FITLX	FSPGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.33	1.85	+0.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.81	0.75	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.82	0.90	-0.07

Drawdowns

FITLX vs. FSPGX - Drawdown Comparison

The maximum FITLX drawdown since its inception was -34.35%, which is greater than FSPGX's maximum drawdown of -32.66%. Use the drawdown chart below to compare losses from any high point for FITLX and FSPGX.

Drawdown Indicators

	FITLX	FSPGX	Difference
Max Drawdown Largest peak-to-trough decline	-34.35%	-32.66%	-1.69%
Max Drawdown (1Y) Largest decline over 1 year	-11.15%	-16.17%	+5.02%
Max Drawdown (3Y) Largest decline over 3 years	-19.99%	-23.32%	+3.33%
Max Drawdown (5Y) Largest decline over 5 years	-26.91%	-32.66%	+5.75%
Current Drawdown Current decline from peak	-0.44%	-0.38%	-0.06%
Average Drawdown Average peak-to-trough decline	-5.07%	-6.37%	+1.30%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.56%	4.81%	-2.25%

Volatility

FITLX vs. FSPGX - Volatility Comparison

Fidelity US Sustainability Index Fund (FITLX) has a higher volatility of 3.56% compared to Fidelity Large Cap Growth Index Fund (FSPGX) at 3.32%. This indicates that FITLX'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

	FITLX	FSPGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.56%	3.32%	+0.24%
Volatility (6M) Calculated over the trailing 6-month period	9.77%	11.58%	-1.81%
Volatility (1Y) Calculated over the trailing 1-year period	12.76%	15.39%	-2.63%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.58%	21.49%	-3.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.10%	21.55%	-2.45%

FITLX vs. FSPGX - Expense Ratio Comparison

FITLX has a 0.11% expense ratio, which is higher than FSPGX's 0.04% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

FITLX vs. FSPGX - Dividend Comparison

FITLX's dividend yield for the trailing twelve months is around 1.00%, more than FSPGX's 0.32% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FITLX Fidelity US Sustainability Index Fund	1.00%	1.11%	1.29%	1.12%	1.49%	0.99%	1.01%	1.41%	1.58%	0.76%
FSPGX Fidelity Large Cap Growth Index Fund	0.32%	0.34%	0.37%	0.73%	0.86%	2.22%	1.76%	1.04%	1.32%	0.22%

Frequently Asked Questions

Can I hold both FITLX and FSPGX in my portfolio?

With a correlation of 0.92, FITLX and FSPGX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, FITLX or FSPGX?

FITLX has higher volatility (3.56%) compared to FSPGX (3.32%). In terms of maximum drawdown, FITLX dropped -34.35% vs FSPGX's -32.66%.

Which has better risk-adjusted returns?

FITLX currently has the higher Sharpe Ratio (2.33 vs 1.85), 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.