BSX vs. AFL
BSX (Boston Scientific Corporation) and AFL (Aflac Incorporated) are both stocks. BSX operates in Medical Devices (Healthcare), while AFL operates in Insurance - Life (Financial Services). Over the past 10 years, BSX returned 7.78%/yr vs 15.48%/yr for AFL. At a 0.28 correlation, their price movements are largely independent.
Performance
BSX vs. AFL - Performance Comparison
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Returns By Period
In the year-to-date period, BSX achieves a -48.93% return, which is significantly lower than AFL's 5.61% return. Over the past 10 years, BSX has underperformed AFL with an annualized return of 7.78%, while AFL has yielded a comparatively higher 15.48% annualized return.
BSX
- 1D
- 0.31%
- 1M
- -9.70%
- YTD
- -48.93%
- 6M
- -48.10%
- 1Y
- -52.30%
- 3Y*
- -1.71%
- 5Y*
- 2.84%
- 10Y*
- 7.78%
AFL
- 1D
- -2.54%
- 1M
- 2.42%
- YTD
- 5.61%
- 6M
- 7.77%
- 1Y
- 13.52%
- 3Y*
- 21.24%
- 5Y*
- 17.94%
- 10Y*
- 15.48%
BSX vs. AFL - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSX Boston Scientific Corporation | -48.93% | 6.75% | 54.51% | 24.94% | 8.92% | 18.16% | -20.50% | 27.96% | 42.56% | 14.61% |
AFL Aflac Incorporated | 5.61% | 8.94% | 28.08% | 17.36% | 26.41% | 34.55% | -13.60% | 18.55% | 6.20% | 29.02% |
Correlation
The correlation between BSX and AFL is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.17 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.22 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.34 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.37 |
Correlation (All Time) Calculated using the full available price history since May 20, 1992 | 0.28 |
The correlation between BSX and AFL shifts across timeframes, from 0.17 (1 year) to 0.37 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
BSX:
$72.81B
AFL:
$59.32B
BSX:
$2.38
AFL:
$8.76
BSX:
20.49
AFL:
13.16
BSX:
0.46
AFL:
3.41
BSX:
3.53
AFL:
3.35
BSX:
2.81
AFL:
2.64
BSX:
$20.62B
AFL:
$18.22B
BSX:
$14.52B
AFL:
$8.70B
BSX:
$4.76B
AFL:
$6.67B
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Return for Risk
BSX vs. AFL — Risk / Return Rank
BSX
AFL
BSX vs. AFL - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Boston Scientific Corporation (BSX) and Aflac Incorporated (AFL). 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.
| BSX | AFL | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.31 | ||
| Sortino ratioReturn per unit of downside risk | -3.50 | ||
| Omega ratioGain probability vs. loss probability | 0.67 | 1.14 | -0.48 |
| Calmar ratioReturn relative to maximum drawdown | -0.94 | 1.49 | -2.43 |
| Martin ratioReturn relative to average drawdown | -2.07 | 3.70 | -5.77 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| BSX | AFL | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -1.51 | 0.80 | -2.31 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.11 | 0.86 | -0.75 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.29 | 0.60 | -0.32 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.20 | 0.48 | -0.28 |
Drawdowns
BSX vs. AFL - Drawdown Comparison
The maximum BSX drawdown since its inception was -89.15%, which is greater than AFL's maximum drawdown of -82.71%. Use the drawdown chart below to compare losses from any high point for BSX and AFL.
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Drawdown Indicators
| BSX | AFL | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -89.15% | -82.71% | -6.44% |
Max Drawdown (1Y)Largest decline over 1 year | -55.91% | -9.11% | -46.80% |
Max Drawdown (3Y)Largest decline over 3 years | -55.91% | -13.56% | -42.35% |
Max Drawdown (5Y)Largest decline over 5 years | -55.91% | -19.86% | -36.05% |
Max Drawdown (10Y)Largest decline over 10 years | -55.91% | -54.89% | -1.02% |
Current DrawdownCurrent decline from peak | -54.97% | -2.54% | -52.43% |
Average DrawdownAverage peak-to-trough decline | -38.75% | -11.66% | -27.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 25.28% | 3.67% | +21.61% |
Volatility
BSX vs. AFL - Volatility Comparison
Boston Scientific Corporation (BSX) has a higher volatility of 16.42% compared to Aflac Incorporated (AFL) at 5.82%. This indicates that BSX's price experiences larger fluctuations and is considered to be riskier than AFL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BSX | AFL | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 16.42% | 5.82% | +10.60% |
Volatility (6M)Calculated over the trailing 6-month period | 32.93% | 12.24% | +20.69% |
Volatility (1Y)Calculated over the trailing 1-year period | 34.80% | 17.08% | +17.72% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.67% | 20.94% | +4.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.29% | 25.77% | +1.52% |
Dividends
BSX vs. AFL - Dividend Comparison
BSX has not paid dividends to shareholders, while AFL's dividend yield for the trailing twelve months is around 2.07%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AFL Aflac Incorporated | 2.07% | 2.10% | 1.93% | 2.04% | 2.22% | 2.26% | 2.52% | 2.04% | 2.28% | 1.98% | 2.39% | 2.64% |
BSX Boston Scientific Corporation | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Financials
BSX vs. AFL - Financials Comparison
This section allows you to compare key financial metrics between Boston Scientific Corporation and Aflac Incorporated. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
BSX vs. AFL - Profitability Comparison
BSX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Boston Scientific Corporation reported a gross profit of 3.61B and revenue of 5.20B. Therefore, the gross margin over that period was 69.4%.
AFL - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Aflac Incorporated reported a gross profit of 2.48B and revenue of 4.32B. Therefore, the gross margin over that period was 57.5%.
BSX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Boston Scientific Corporation reported an operating income of 1.07B and revenue of 5.20B, resulting in an operating margin of 20.6%.
AFL - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Aflac Incorporated reported an operating income of 1.23B and revenue of 4.32B, resulting in an operating margin of 28.4%.
BSX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Boston Scientific Corporation reported a net income of 1.34B and revenue of 5.20B, resulting in a net margin of 25.7%.
AFL - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Aflac Incorporated reported a net income of 1.02B and revenue of 4.32B, resulting in a net margin of 23.6%.
Frequently Asked Questions
BSX and AFL have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BSX has higher volatility (16.42%) compared to AFL (5.82%). In terms of maximum drawdown, BSX dropped -89.15% vs AFL's -82.71%.
AFL currently has the higher Sharpe Ratio (0.80 vs -1.51), 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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