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AMG Boston Common Global Impact Fund (BRWIX) Sharpe Ratio: 1.40

BRWIX's Sharpe Ratio of 1.40 indicates that for each unit of volatility, it generates 1.40 units of excess return above the risk-free rate. The ratio is calculated using historical daily returns over the past 12 months (as of Apr 2, 2026).

Sharpe uses total volatility (standard deviation) which includes both upside and downside price movements, making it useful for comparing risk-adjusted returns across different assets.

BRWIX Sharpe Ratio Rank

BRWIX Sharpe Ratio Rank: 74.574
Above Average

BRWIX ranks above 74.5% of all investments in our database based on Sharpe Ratio over the past 12 months, indicating above-average returns relative to volatility. Securities are ranked from 0 (worst) to 100 (best).

What moves the rank

  • Strong returns with low total volatility → Higher rank
  • High volatility (both upside and downside) → Lower rank
  • Consistent returns → Higher rank than volatile returns of same magnitude
  • Sharp drawdowns increase volatility → Lower rank

What you can do with this information

  • Above-average risk-adjusted returns with room for improvement
  • Compare against category peers to gauge relative positioning
  • Monitor for movement toward top tier or decline toward median
  • Consider pairing with top-tier holdings to improve portfolio efficiency

BRWIX Sharpe Ratio Market Positioning

The chart shows BRWIX's Sharpe Ratio relative to all mutual funds on our platform, with color zones indicating percentile rankings. Higher ratios indicate better risk-adjusted returns.

  • Red zone (bottom 25%): 0.76 or lower
  • Yellow zone (middle 50%): 0.76 to 1.49
  • Green zone (top 25%): 1.49 or higher
  • Top 1%: 3.52+
  • Median: 1.10 — half of all investments score higher

How it compares to other similar mutual funds

The table compares AMG Boston Common Global Impact Fund's Sharpe Ratio with other mutual funds in the Large Cap Growth Equities category across multiple time periods, showing how BRWIX's risk-adjusted performance compares to similar funds.

Data shows 1-, 5-, and 10-year periods, plus each fund's all-time average, as of Apr 2, 2026.

SymbolName1Y Sharpe Ratio5Y Sharpe Ratio10Y Sharpe RatioAll Time Sharpe Ratio
EFCNXEmerald Insights Fund2.43
ONERXOne Rock Fund1.96
VTMGXVanguard Developed Markets Index Fund Admiral Shares1.79
FCGSXFidelity Series Growth Company Fund1.66
ATVPXAlger 35 Fund1.58
ALZFXAlger Focus Equity Fund Class Z1.58
ALGRXAlger Focus Equity Fund1.56
ALAFXAlger Focus Equity A Fund1.56
CHASXChase Growth Fund1.53
ANFFXAmerican Funds The New Economy Fund Class F-11.51
BRWIXAMG Boston Common Global Impact Fund1.40

S&P 500 Index

How to choose period

Historical Sharpe Ratio

The chart shows BRWIX's rolling Sharpe ratio over time compared to your chosen benchmark. Rising trends indicate improving returns relative to total volatility, while declining trends may signal deteriorating risk-adjusted performance or increased volatility. Use multiple timeframes to distinguish short-term fluctuations from long-term patterns.

Identify market cycles by observing when BRWIX consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.

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Explore BRWIX risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

BRWIX Sortino Ratio