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Credit Suisse Strategic Income Fund (CSOIX) Sortino Ratio: 1.77

CSOIX's Sortino Ratio of 1.77 indicates that for each unit of downside volatility, it generates 1.77 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Apr 1, 2026).

Unlike other measures, Sortino only focuses on downside volatility (losses), making it particularly useful for investors more concerned about protecting against drawdowns than overall price swings.

CSOIX Sortino Ratio Rank


CSOIX Sortino Ratio Rank: 72.372
Above Average

CSOIX ranks above 72.3% of all investments in our database based on Sortino Ratio over the past 12 months, indicating above-average returns relative to downside risk taken. Securities are ranked from 0 (worst) to 100 (best).

What moves the rank

  • Strong returns with minimal downside volatility → Higher rank
  • Severe or frequent drawdowns → Lower rank
  • Upside volatility → No impact (Sortino doesn't penalize upside swings)

What you can do with this information

  • Above-average downside protection 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 risk profile

CSOIX Sortino Ratio Market Positioning

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


  • Red zone (bottom 25%): 1.02 or lower
  • Yellow zone (middle 50%): 1.02 to 1.90
  • Green zone (top 25%): 1.90 or higher
  • Top 1%: 7.40+
  • Median: 1.45 — half of all investments score higher

How it compares to other similar mutual funds

The table compares Credit Suisse Strategic Income Fund's Sortino Ratio with other mutual funds in the High Yield Bonds category across multiple time periods, showing how CSOIX'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 1, 2026.


SymbolName1Y Sortino Ratio5Y Sortino Ratio10Y Sortino RatioAll Time Sortino Ratio
XILSXPioneer ILS Interval Fund71.70
CCLFXCliffwater Corporate Lending Fund16.02
RPHIXRiverPark Short Term High Yield Fund10.09
PRFRXT. Rowe Price Floating Rate Fund7.34
CPMPXChanging Parameters Fund5.56
PRCPXT. Rowe Price Credit Opportunities Fund5.52
RPIHXT. Rowe Price Global High Income Bond Fund5.21
PRHYXT. Rowe Price High Yield Fund5.19
RCRYXPioneer Corporate High Yield Fund4.37
CWFIXChartwell Short Duration High Yield Fund4.25
CSOIXCredit Suisse Strategic Income Fund1.77

S&P 500 Index

How to choose period

Historical Sortino Ratio

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

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


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Explore CSOIX risk-adjusted metrics in detail

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