FNSBX vs. FIFNX

Last updated Jun 24, 2026

FNSBX (Fidelity Freedom 2050 Fund Class K) and FIFNX (Fidelity Founders Fund) are both mutual funds - FNSBX is a Target Retirement Date fund managed by Fidelity, while FIFNX is a Large Cap Growth Equities fund managed by Fidelity. Over the past 5 years, FNSBX returned 10.63%/yr vs 12.51%/yr for FIFNX. Their correlation of 0.88 suggests significant overlap in exposure. FNSBX charges 0.65%/yr vs 0.90%/yr for FIFNX.

Performance

FNSBX vs. FIFNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Freedom 2050 Fund Class K (FNSBX) and Fidelity Founders Fund (FIFNX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FNSBX achieves a 14.42% return, which is significantly higher than FIFNX's 8.56% return.

FNSBX

• 1D: -0.28%
• 1M: 3.00%
• YTD: 14.42%
• 6M: 13.84%
• 1Y: 30.90%
• 3Y*: 20.78%
• 5Y*: 10.63%
• 10Y*: —

FIFNX

• 1D: -0.57%
• 1M: 2.89%
• YTD: 8.56%
• 6M: 7.02%
• 1Y: 20.88%
• 3Y*: 24.46%
• 5Y*: 12.51%
• 10Y*: —

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

FNSBX vs. FIFNX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
FNSBX Fidelity Freedom 2050 Fund Class K	14.42%	23.79%	14.17%	20.64%	-18.25%	16.67%	18.43%	14.40%
FIFNX Fidelity Founders Fund	8.56%	16.34%	36.44%	33.95%	-26.69%	19.00%	47.20%	13.95%

Correlation

The correlation between FNSBX and FIFNX is 0.90, 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	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (All Time) Calculated using the full available price history since Feb 22, 2019	0.88

The correlation between FNSBX and FIFNX has been stable across timeframes, ranging from 0.88 to 0.91 - a consistent structural relationship.

Return for Risk

FNSBX vs. FIFNX — Risk / Return Rank

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

FNSBX

FNSBX Risk / Return Rank: 77
FNSBX Sharpe Ratio Rank: 78
FNSBX Sortino Ratio Rank: 73
FNSBX Omega Ratio Rank: 74
FNSBX Calmar Ratio Rank: 78
FNSBX Martin Ratio Rank: 84

FIFNX

FIFNX Risk / Return Rank: 29
FIFNX Sharpe Ratio Rank: 28
FIFNX Sortino Ratio Rank: 27
FIFNX Omega Ratio Rank: 27
FIFNX Calmar Ratio Rank: 27
FIFNX Martin Ratio Rank: 34

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.

FNSBX vs. FIFNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Freedom 2050 Fund Class K (FNSBX) and Fidelity Founders Fund (FIFNX). 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.

	FNSBX	FIFNX	Difference
Sharpe ratio: Return per unit of total volatility	2.37	1.41	+0.95
Sortino ratio: Return per unit of downside risk	3.23	2.00	+1.23
Omega ratio: Gain probability vs. loss probability	1.44	1.25	+0.19
Calmar ratio: Return relative to maximum drawdown	3.32	1.80	+1.52
Martin ratio: Return relative to average drawdown	14.48	7.16	+7.32

FNSBX vs. FIFNX - Sharpe Ratio Comparison

The current FNSBX Sharpe Ratio is 2.37, which is higher than the FIFNX Sharpe Ratio of 1.41. The chart below compares the historical Sharpe Ratios of FNSBX and FIFNX, 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

FNSBX vs. FIFNX - Drawdown Comparison

The maximum FNSBX drawdown since its inception was -30.88%, smaller than the maximum FIFNX drawdown of -32.52%. Use the drawdown chart below to compare losses from any high point for FNSBX and FIFNX.

Drawdown Indicators

	FNSBX	FIFNX	Difference
Max Drawdown Largest peak-to-trough decline	-30.88%	-32.52%	+1.64%
Max Drawdown (1Y) Largest decline over 1 year	-9.66%	-12.27%	+2.61%
Max Drawdown (3Y) Largest decline over 3 years	-15.39%	-23.26%	+7.87%
Max Drawdown (5Y) Largest decline over 5 years	-27.28%	-32.52%	+5.24%
Current Drawdown Current decline from peak	-0.28%	-1.28%	+1.00%
Average Drawdown Average peak-to-trough decline	-5.57%	-7.95%	+2.38%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.21%	3.07%	-0.86%

Volatility

FNSBX vs. FIFNX - Volatility Comparison

The current volatility for Fidelity Freedom 2050 Fund Class K (FNSBX) is 5.58%, while Fidelity Founders Fund (FIFNX) has a volatility of 5.99%. This indicates that FNSBX experiences smaller price fluctuations and is considered to be less risky than FIFNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FNSBX	FIFNX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.58%	5.99%	-0.41%
Volatility (6M) Calculated over the trailing 6-month period	11.52%	12.51%	-0.99%
Volatility (1Y) Calculated over the trailing 1-year period	13.60%	15.65%	-2.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.18%	21.30%	-6.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.01%	22.58%	-6.57%

FNSBX vs. FIFNX - Expense Ratio Comparison

FNSBX has a 0.65% expense ratio, which is lower than FIFNX's 0.90% expense ratio.

Dividends

FNSBX vs. FIFNX - Dividend Comparison

FNSBX's dividend yield for the trailing twelve months is around 5.24%, more than FIFNX's 2.38% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIFNX Fidelity Founders Fund	2.38%	2.40%	6.31%	0.11%	2.54%	6.17%	0.00%	0.09%	0.00%	0.00%
FNSBX Fidelity Freedom 2050 Fund Class K	5.24%	4.15%	2.13%	1.92%	11.92%	11.83%	4.99%	6.57%	7.80%	2.86%

Frequently Asked Questions

Can I hold both FNSBX and FIFNX in my portfolio?

FNSBX and FIFNX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FNSBX or FIFNX?

FIFNX has higher volatility (5.99%) compared to FNSBX (5.58%). In terms of maximum drawdown, FNSBX dropped -30.88% vs FIFNX's -32.52%.

Which has better risk-adjusted returns?

FNSBX currently has the higher Sharpe Ratio (2.37 vs 1.41), 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.