AGO vs. SPY
AGO (Assured Guaranty Ltd.) is a stock, while SPY (State Street SPDR S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, AGO returned 14.08%/yr vs 15.07%/yr for SPY. Their 0.50 correlation means their historical movements had little consistent relationship.
Performance
AGO vs. SPY - Performance Comparison
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Returns By Period
In the year-to-date period, AGO achieves a -7.09% return, which is significantly lower than SPY's 10.13% return. Over the past 10 years, AGO has underperformed SPY with an annualized return of 14.08%, while SPY has yielded a comparatively higher 15.07% annualized return.
AGO
- 1D
- -1.70%
- 1M
- -1.14%
- 6M
- -1.59%
- YTD
- -7.09%
- 1Y
- 0.40%
- 3Y*
- 13.07%
- 5Y*
- 13.51%
- 10Y*
- 14.08%
- ALL TIME*
- 8.69%
SPY
- 1D
- 0.72%
- 1M
- 0.30%
- 6M
- 8.53%
- YTD
- 10.13%
- 1Y
- 21.49%
- 3Y*
- 19.32%
- 5Y*
- 12.76%
- 10Y*
- 15.07%
- ALL TIME*
- 10.79%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $27.59M | $26.46M | $32.06M | |
| $37.27B | $35.99B | $39.23B |
AGO vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AGO Assured Guaranty Ltd. | -7.09% | 1.44% | 22.08% | 22.52% | 26.20% | 62.33% | -33.94% | 30.12% | 14.95% | -9.03% |
SPY State Street SPDR S&P 500 ETF | 10.13% | 17.72% | 24.89% | 26.18% | -18.18% | 28.73% | 18.33% | 31.22% | -4.57% | 21.71% |
Correlation
The correlation between AGO and SPY is 0.11, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.11 |
Correlation (3Y) Balances recent behavior with more history. | 0.28 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.43 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.44 |
Correlation (All Time) Calculated using the full available price history since Apr 23, 2004 | 0.50 |
Over the past year, the correlation between AGO and SPY has dropped to 0.11 - well below their long-term average of 0.50, suggesting their price drivers have been diverging.
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Return for Risk
AGO vs. SPY — Risk / Return Rank
AGO
SPY
AGO vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Assured Guaranty Ltd. (AGO) and State Street SPDR S&P 500 ETF (SPY). 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.
| AGO | SPY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.54 | ||
| Sortino ratioReturn per unit of downside risk | -1.99 | ||
| Omega ratioGain probability vs. loss probability | 1.02 | 1.27 | -0.26 |
| Calmar ratioReturn relative to maximum drawdown | -0.02 | 2.20 | -2.23 |
| Martin ratioReturn relative to average drawdown | -0.06 | 9.40 | -9.46 |
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Drawdowns
AGO vs. SPY - Drawdown Comparison
The maximum AGO drawdown since its inception was -90.18%, which is greater than SPY's maximum drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for AGO and SPY.
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Drawdown Indicators
| AGO | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -90.18% | -55.19% | -34.99% |
Max Drawdown (1Y)Largest decline over 1 year | -19.84% | -8.88% | -10.96% |
Max Drawdown (3Y)Largest decline over 3 years | -21.83% | -18.76% | -3.07% |
Max Drawdown (5Y)Largest decline over 5 years | -30.23% | -24.50% | -5.73% |
Max Drawdown (10Y)Largest decline over 10 years | -61.48% | -33.72% | -27.76% |
Current DrawdownCurrent decline from peak | -11.14% | -1.40% | -9.74% |
Average DrawdownAverage peak-to-trough decline | -19.78% | -9.01% | -10.77% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 8.70% | 2.08% | +6.62% |
Volatility
AGO vs. SPY - Volatility Comparison
Assured Guaranty Ltd. (AGO) has a higher volatility of 5.49% compared to State Street SPDR S&P 500 ETF (SPY) at 3.58%. This indicates that AGO's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AGO | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.49% | 3.58% | +1.91% |
Volatility (6M)Calculated over the trailing 6-month period | 17.29% | 10.14% | +7.15% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.10% | 12.89% | +9.21% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.03% | 17.18% | +9.85% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 33.92% | 17.95% | +15.97% |
Dividends
AGO vs. SPY - Dividend Comparison
AGO's dividend yield for the trailing twelve months is around 1.74%, more than SPY's 1.01% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AGO Assured Guaranty Ltd. | 1.74% | 1.51% | 1.38% | 1.50% | 1.61% | 1.75% | 2.54% | 1.47% | 1.67% | 1.68% | 1.38% | 1.82% |
SPY State Street SPDR S&P 500 ETF | 1.01% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Frequently Asked Questions
AGO and SPY have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AGO has higher volatility (5.49%) compared to SPY (3.58%). In terms of maximum drawdown, AGO dropped -90.18% vs SPY's -55.19%.
SPY currently has the higher Sharpe Ratio (1.52 vs -0.02), 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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