BSX vs. ^GSPC
BSX (Boston Scientific Corporation) is a stock, while ^GSPC (S&P 500 Index) is an index. Over the past 10 years, BSX returned 7.59%/yr vs 13.81%/yr for ^GSPC. At a 0.42 correlation, their price movements are largely independent.
Performance
BSX vs. ^GSPC - Performance Comparison
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Returns By Period
In the year-to-date period, BSX achieves a -50.96% return, which is significantly lower than ^GSPC's 10.35% return. Over the past 10 years, BSX has underperformed ^GSPC with an annualized return of 7.59%, while ^GSPC has yielded a comparatively higher 13.81% annualized return.
BSX
- 1D
- -0.32%
- 1M
- -11.24%
- YTD
- -50.96%
- 6M
- -49.28%
- 1Y
- -53.12%
- 3Y*
- -4.87%
- 5Y*
- 1.80%
- 10Y*
- 7.59%
^GSPC
- 1D
- 1.65%
- 1M
- 1.97%
- YTD
- 10.35%
- 6M
- 10.82%
- 1Y
- 26.39%
- 3Y*
- 19.66%
- 5Y*
- 12.33%
- 10Y*
- 13.81%
BSX vs. ^GSPC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSX Boston Scientific Corporation | -50.96% | 6.75% | 54.51% | 24.94% | 8.92% | 18.16% | -20.50% | 27.96% | 42.56% | 14.61% |
^GSPC S&P 500 Index | 10.35% | 16.39% | 23.31% | 24.23% | -19.44% | 26.89% | 16.26% | 28.88% | -6.24% | 19.42% |
Correlation
The correlation between BSX and ^GSPC is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.12 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.32 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.44 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.52 |
Correlation (All Time) Calculated using the full available price history since May 19, 1992 | 0.42 |
Over the past year, the correlation between BSX and ^GSPC has dropped to 0.12 - well below their long-term average of 0.42, suggesting their price drivers have been diverging.
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Return for Risk
BSX vs. ^GSPC — Risk / Return Rank
BSX
^GSPC
BSX vs. ^GSPC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Boston Scientific Corporation (BSX) and S&P 500 Index (^GSPC). 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.
| BSX | ^GSPC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -3.67 | ||
| Sortino ratioReturn per unit of downside risk | -5.21 | ||
| Omega ratioGain probability vs. loss probability | 0.66 | 1.39 | -0.73 |
| Calmar ratioReturn relative to maximum drawdown | -0.94 | 2.91 | -3.85 |
| Martin ratioReturn relative to average drawdown | -2.01 | 13.08 | -15.09 |
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Drawdowns
BSX vs. ^GSPC - Drawdown Comparison
The maximum BSX drawdown since its inception was -89.15%, which is greater than ^GSPC's maximum drawdown of -56.78%. Use the drawdown chart below to compare losses from any high point for BSX and ^GSPC.
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Drawdown Indicators
| BSX | ^GSPC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -89.15% | -56.78% | -32.37% |
Max Drawdown (1Y)Largest decline over 1 year | -56.76% | -9.10% | -47.66% |
Max Drawdown (3Y)Largest decline over 3 years | -56.76% | -18.90% | -37.86% |
Max Drawdown (5Y)Largest decline over 5 years | -56.76% | -25.43% | -31.33% |
Max Drawdown (10Y)Largest decline over 10 years | -56.76% | -33.92% | -22.84% |
Current DrawdownCurrent decline from peak | -56.76% | -0.73% | -56.03% |
Average DrawdownAverage peak-to-trough decline | -38.76% | -10.72% | -28.04% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 26.47% | 2.02% | +24.45% |
Volatility
BSX vs. ^GSPC - Volatility Comparison
Boston Scientific Corporation (BSX) has a higher volatility of 15.76% compared to S&P 500 Index (^GSPC) at 4.67%. This indicates that BSX's price experiences larger fluctuations and is considered to be riskier than ^GSPC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BSX | ^GSPC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 15.76% | 4.67% | +11.09% |
Volatility (6M)Calculated over the trailing 6-month period | 32.82% | 9.83% | +22.99% |
Volatility (1Y)Calculated over the trailing 1-year period | 34.80% | 12.44% | +22.36% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.69% | 16.99% | +8.70% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.30% | 18.11% | +9.19% |
Frequently Asked Questions
BSX and ^GSPC have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BSX has higher volatility (15.76%) compared to ^GSPC (4.67%). In terms of maximum drawdown, BSX dropped -89.15% vs ^GSPC's -56.78%.
^GSPC currently has the higher Sharpe Ratio (2.14 vs -1.53), 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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