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VIOO's Sortino Ratio of 2.88 indicates that for each unit of downside volatility, it generates 2.88 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Jun 3, 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.

VIOO Sortino Ratio Rank


VIOO Sortino Ratio Rank: 60.761
Above Average

VIOO ranks above 60.7% 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

VIOO Sortino Ratio Market Positioning

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


  • Red zone (bottom 25%): 1.38 or lower
  • Yellow zone (middle 50%): 1.38 to 3.47
  • Green zone (top 25%): 3.47 or higher
  • Top 1%: 13.16+
  • Median: 2.52 — half of all investments score higher

How it compares to other similar ETFs

The table compares Vanguard S&P Small-Cap 600 ETF's Sortino Ratio with other ETFs in the Small Cap Blend Equities category across multiple time periods, showing how VIOO'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 Jun 3, 2026.


SymbolName1Y Sortino Ratio5Y Sortino Ratio10Y Sortino RatioAll Time Sortino Ratio
QQQSInvesco NASDAQ Future Gen 200 ETF4.07
GSCGoldman Sachs Small Cap Core Equity ETF3.81
FYXFirst Trust Small Cap Core AlphaDEX Fund3.73
FESMFidelity Enhanced Small Cap ETF3.61
SCDSJPMorgan Fundamental Data Science Small Core ETF3.55
IWCiShares Micro-Cap ETF3.41
FGSMFrontier Asset Global Small Cap Equity ETF3.26
RUSCU.S. Small Cap Equity Active ETF3.23
WCEOHypatia Women CEO ETF3.16
ISMDInspire Small/Mid Cap Impact ETF3.16
VIOOVanguard S&P Small-Cap 600 ETF2.88

S&P 500 Index

How to choose period

Historical Sortino Ratio

The chart shows VIOO'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 VIOO consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.


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