FNILX vs. AGO
FNILX (Fidelity ZERO Large Cap Index Fund) is Large Cap Blend Equities fund managed by Fidelity, while AGO (Assured Guaranty Ltd.) is a stock. Over the past 5 years, FNILX returned 13.10%/yr vs 12.01%/yr for AGO. At a 0.46 correlation, their price movements are largely independent.
Performance
FNILX vs. AGO - Performance Comparison
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Returns By Period
In the year-to-date period, FNILX achieves a 8.36% return, which is significantly higher than AGO's -14.12% return.
FNILX
- 1D
- 1.81%
- 1M
- -1.16%
- YTD
- 8.36%
- 6M
- 8.67%
- 1Y
- 24.79%
- 3Y*
- 21.29%
- 5Y*
- 13.10%
- 10Y*
- —
AGO
- 1D
- 1.08%
- 1M
- 0.94%
- YTD
- -14.12%
- 6M
- -14.45%
- 1Y
- -8.27%
- 3Y*
- 13.91%
- 5Y*
- 12.01%
- 10Y*
- 13.58%
FNILX vs. AGO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
FNILX Fidelity ZERO Large Cap Index Fund | 8.36% | 17.81% | 25.47% | 27.45% | -19.37% | 26.67% | 21.13% | 31.79% | -13.60% |
AGO Assured Guaranty Ltd. | -14.12% | 1.44% | 22.08% | 22.52% | 26.20% | 62.33% | -33.94% | 30.12% | -8.58% |
Correlation
The correlation between FNILX and AGO is 0.21, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.21 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.30 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.44 |
Correlation (All Time) Calculated using the full available price history since Sep 28, 2018 | 0.46 |
Over the past year, the correlation between FNILX and AGO has dropped to 0.21 - well below their long-term average of 0.46, suggesting their price drivers have been diverging.
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Return for Risk
FNILX vs. AGO — Risk / Return Rank
FNILX
AGO
FNILX vs. AGO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity ZERO Large Cap Index Fund (FNILX) and Assured Guaranty Ltd. (AGO). 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 | AGO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.31 | ||
| Sortino ratioReturn per unit of downside risk | +3.00 | ||
| Omega ratioGain probability vs. loss probability | 1.35 | 0.95 | +0.40 |
| Calmar ratioReturn relative to maximum drawdown | 2.66 | -0.43 | +3.09 |
| Martin ratioReturn relative to average drawdown | 11.84 | -1.04 | +12.87 |
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Drawdowns
FNILX vs. AGO - Drawdown Comparison
The maximum FNILX drawdown since its inception was -33.76%, smaller than the maximum AGO drawdown of -90.18%. Use the drawdown chart below to compare losses from any high point for FNILX and AGO.
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Drawdown Indicators
| FNILX | AGO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.76% | -90.18% | +56.42% |
Max Drawdown (1Y)Largest decline over 1 year | -9.01% | -19.84% | +10.83% |
Max Drawdown (3Y)Largest decline over 3 years | -19.08% | -21.83% | +2.75% |
Max Drawdown (5Y)Largest decline over 5 years | -25.40% | -30.23% | +4.83% |
Max Drawdown (10Y)Largest decline over 10 years | — | -61.48% | — |
Current DrawdownCurrent decline from peak | -2.87% | -17.86% | +14.99% |
Average DrawdownAverage peak-to-trough decline | -5.36% | -19.83% | +14.47% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.02% | 8.12% | -6.10% |
Volatility
FNILX vs. AGO - Volatility Comparison
The current volatility for Fidelity ZERO Large Cap Index Fund (FNILX) is 4.59%, while Assured Guaranty Ltd. (AGO) has a volatility of 5.98%. This indicates that FNILX experiences smaller price fluctuations and is considered to be less risky than AGO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FNILX | AGO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.59% | 5.98% | -1.39% |
Volatility (6M)Calculated over the trailing 6-month period | 9.76% | 16.99% | -7.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.47% | 21.62% | -9.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.32% | 27.30% | -9.98% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.05% | 33.96% | -13.91% |
Dividends
FNILX vs. AGO - Dividend Comparison
FNILX's dividend yield for the trailing twelve months is around 0.93%, less than AGO's 1.88% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AGO Assured Guaranty Ltd. | 1.88% | 1.51% | 1.38% | 1.50% | 1.61% | 1.75% | 2.54% | 1.47% | 1.67% | 1.68% | 1.38% | 1.82% |
FNILX Fidelity ZERO Large Cap Index Fund | 0.93% | 1.01% | 1.09% | 1.34% | 1.53% | 0.95% | 1.20% | 1.17% | 0.53% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
FNILX and AGO have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AGO has higher volatility (5.98%) compared to FNILX (4.59%). In terms of maximum drawdown, FNILX dropped -33.76% vs AGO's -90.18%.
FNILX currently has the higher Sharpe Ratio (1.92 vs -0.39), 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.
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