The bear-market rank details how a fund has performed during bear markets. For stock funds, a bear market is defined as all months in the past five years that the S&P 500 lost more than 3%; for bond funds, it's all months in the past five years that the Barclays Aggregate Bond index lost more than 1%. Morningstar adds a fund's performance during each bear-market month to reach a total bear-market return. Based on these returns, each fund is then assigned a percentile ranking. Stock funds are ranked separately from bond funds.
The highest (or most favorable) percentile rank is 1 and the lowest (or least favorable) percentile rank is 100.
See Also
Bear Market Rank 5 Years (for Stocks)