Historically, Apr has averaged the highest return (+3.1%); Aug the lowest (-1.7%).
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +6.9%Positive MonthJan 2026: +6.85% | -2.8%Negative MonthFeb 2026: -2.76% | -6.9%Negative MonthMar 2026: -6.92% | +4.0%Positive MonthApr 2026: +3.99% | -2.3%Negative MonthMay 2026: -2.30% | -9.1%Negative MonthJun 2026: -9.14% | +13.1%Positive MonthJul 2026: +13.13% | -0.7%*Neutral MonthAug 2026: -0.72% | β | β | β | β |
| 2025 | +0.8%Neutral MonthJan 2025: +0.82% | +13.4%Positive MonthFeb 2025: +13.43% | +0.8%Neutral MonthMar 2025: +0.78% | -4.3%Negative MonthApr 2025: -4.33% | +5.3%Positive MonthMay 2025: +5.29% | +3.4%Positive MonthJun 2025: +3.36% | +2.9%Positive MonthJul 2025: +2.91% | +1.2%Neutral MonthAug 2025: +1.23% | +7.1%Positive MonthSep 2025: +7.09% | -3.5%Negative MonthOct 2025: -3.53% | -0.2%Neutral MonthNov 2025: -0.18% | -0.9%Neutral MonthDec 2025: -0.88% |
| 2024 | -9.2%Negative MonthJan 2024: -9.16% | +6.6%Positive MonthFeb 2024: +6.63% | +0.2%Neutral MonthMar 2024: +0.18% | +7.4%Positive MonthApr 2024: +7.39% | +1.8%Neutral MonthMay 2024: +1.78% | -2.0%Neutral MonthJun 2024: -2.00% | -2.1%Negative MonthJul 2024: -2.11% | +3.7%Positive MonthAug 2024: +3.72% | +17.5%Positive MonthSep 2024: +17.48% | -3.9%Negative MonthOct 2024: -3.86% | -4.4%Negative MonthNov 2024: -4.40% | +3.3%Positive MonthDec 2024: +3.28% |
| 2023 | +10.4%Positive MonthJan 2023: +10.42% | -9.4%Negative MonthFeb 2023: -9.41% | +3.1%Positive MonthMar 2023: +3.10% | -2.5%Negative MonthApr 2023: -2.48% | -8.3%Negative MonthMay 2023: -8.35% | +3.7%Positive MonthJun 2023: +3.74% | +6.1%Positive MonthJul 2023: +6.15% | -8.5%Negative MonthAug 2023: -8.45% | -3.1%Negative MonthSep 2023: -3.11% | -3.9%Negative MonthOct 2023: -3.91% | -0.4%Neutral MonthNov 2023: -0.41% | +0.0%Neutral MonthDec 2023: +0.03% |
| 2022 | +1.7%Neutral MonthJan 2022: +1.73% | -4.6%Negative MonthFeb 2022: -4.58% | -3.2%Negative MonthMar 2022: -3.15% | -4.1%Negative MonthApr 2022: -4.13% | +1.5%Neutral MonthMay 2022: +1.54% | +2.1%Positive MonthJun 2022: +2.08% | -7.8%Negative MonthJul 2022: -7.79% | -1.0%Neutral MonthAug 2022: -1.00% | -13.7%Negative MonthSep 2022: -13.69% | -14.7%Negative MonthOct 2022: -14.72% | +26.6%Positive MonthNov 2022: +26.62% | +6.4%Positive MonthDec 2022: +6.37% |
| 2021 | +3.9%Positive MonthJan 2021: +3.87% | +2.5%Positive MonthFeb 2021: +2.46% | -2.1%Negative MonthMar 2021: -2.08% | +1.2%Neutral MonthApr 2021: +1.22% | +1.5%Neutral MonthMay 2021: +1.49% | -1.1%Neutral MonthJun 2021: -1.11% | -9.9%Negative MonthJul 2021: -9.94% | -0.3%Neutral MonthAug 2021: -0.32% | -5.0%Negative MonthSep 2021: -5.04% | +3.3%Positive MonthOct 2021: +3.26% | -7.5%Negative MonthNov 2021: -7.49% | -0.3%Neutral MonthDec 2021: -0.33% |
| 2020 | -6.7%Negative MonthJan 2020: -6.66% | -0.7%Neutral MonthFeb 2020: -0.69% | -9.7%Negative MonthMar 2020: -9.67% | +4.4%Positive MonthApr 2020: +4.41% | -6.8%Negative MonthMay 2020: -6.83% | +6.4%Positive MonthJun 2020: +6.38% | +0.7%Neutral MonthJul 2020: +0.69% | +2.4%Positive MonthAug 2020: +2.37% | -6.8%Negative MonthSep 2020: -6.82% | +2.8%Positive MonthOct 2020: +2.76% | +9.3%Positive MonthNov 2020: +9.27% | +3.4%Positive MonthDec 2020: +3.38% |
| 2019 | +8.1%Positive MonthJan 2019: +8.11% | +2.5%Positive MonthFeb 2019: +2.47% | +1.5%Neutral MonthMar 2019: +1.46% | +2.2%Positive MonthApr 2019: +2.23% | -9.4%Negative MonthMay 2019: -9.42% | +6.1%Positive MonthJun 2019: +6.10% | -2.7%Negative MonthJul 2019: -2.68% | -7.4%Negative MonthAug 2019: -7.39% | +1.4%Neutral MonthSep 2019: +1.43% | +3.1%Positive MonthOct 2019: +3.12% | -2.1%Negative MonthNov 2019: -2.08% | +7.0%Positive MonthDec 2019: +7.00% |
| 2018 | +9.9%Positive MonthJan 2018: +9.92% | -6.2%Negative MonthFeb 2018: -6.21% | -2.4%Negative MonthMar 2018: -2.44% | +2.4%Positive MonthApr 2018: +2.38% | -1.1%Neutral MonthMay 2018: -1.10% | -5.0%Negative MonthJun 2018: -4.97% | -1.3%Neutral MonthJul 2018: -1.29% | -2.4%Negative MonthAug 2018: -2.43% | -0.4%Neutral MonthSep 2018: -0.36% | -10.1%Negative MonthOct 2018: -10.11% | +6.1%Positive MonthNov 2018: +6.11% | -2.5%Negative MonthDec 2018: -2.49% |
| 2017 | +6.2%Positive MonthJan 2017: +6.18% | +1.6%Neutral MonthFeb 2017: +1.63% | +1.6%Neutral MonthMar 2017: +1.56% | +2.1%Positive MonthApr 2017: +2.09% | +4.2%Positive MonthMay 2017: +4.25% | +0.4%Neutral MonthJun 2017: +0.41% | +6.1%Positive MonthJul 2017: +6.05% | +2.4%Positive MonthAug 2017: +2.37% | -1.5%Neutral MonthSep 2017: -1.49% | +2.5%Positive MonthOct 2017: +2.51% | +3.3%Positive MonthNov 2017: +3.30% | +2.5%Positive MonthDec 2017: +2.54% |
| 2016 | -10.2%Negative MonthJan 2016: -10.18% | -2.9%Negative MonthFeb 2016: -2.90% | +8.7%Positive MonthMar 2016: +8.71% | +1.4%Neutral MonthApr 2016: +1.40% | -1.2%Neutral MonthMay 2016: -1.20% | -0.1%Neutral MonthJun 2016: -0.10% | +5.3%Positive MonthJul 2016: +5.28% | +5.0%Positive MonthAug 2016: +4.96% | +1.4%Neutral MonthSep 2016: +1.39% | -1.6%Neutral MonthOct 2016: -1.56% | -0.6%Neutral MonthNov 2016: -0.63% | -3.5%Negative MonthDec 2016: -3.46% |
| 2015 | +3.8%Positive MonthJan 2015: +3.82% | +1.3%Neutral MonthFeb 2015: +1.29% | +0.3%Neutral MonthMar 2015: +0.31% | +13.0%Positive MonthApr 2015: +12.98% | -2.5%Negative MonthMay 2015: -2.52% | -4.3%Negative MonthJun 2015: -4.28% | -6.1%Negative MonthJul 2015: -6.15% | -12.0%Negative MonthAug 2015: -12.04% | -3.8%Negative MonthSep 2015: -3.80% | +8.6%Positive MonthOct 2015: +8.60% | -2.8%Negative MonthNov 2015: -2.84% | -0.4%Neutral MonthDec 2015: -0.37% |
| 2014 | -5.5%Negative MonthJan 2014: -5.45% | +3.6%Positive MonthFeb 2014: +3.64% | -3.0%Negative MonthMar 2014: -3.00% | -0.1%Neutral MonthApr 2014: -0.08% | +4.3%Positive MonthMay 2014: +4.28% | +0.5%Neutral MonthJun 2014: +0.47% | +6.8%Positive MonthJul 2014: +6.75% | -0.1%Neutral MonthAug 2014: -0.06% | -7.3%Negative MonthSep 2014: -7.31% | +4.6%Positive MonthOct 2014: +4.64% | -0.0%Neutral MonthNov 2014: -0.04% | -1.6%Neutral MonthDec 2014: -1.59% |
| 2013 | +4.7%Positive MonthJan 2013: +4.73% | -3.0%Negative MonthFeb 2013: -2.99% | -3.1%Negative MonthMar 2013: -3.13% | +2.0%Neutral MonthApr 2013: +1.96% | -1.5%Neutral MonthMay 2013: -1.52% | -7.1%Negative MonthJun 2013: -7.10% | +5.2%Positive MonthJul 2013: +5.19% | -0.7%Neutral MonthAug 2013: -0.70% | +5.2%Positive MonthSep 2013: +5.19% | +1.5%Neutral MonthOct 2013: +1.52% | +2.9%Positive MonthNov 2013: +2.91% | -2.4%Negative MonthDec 2013: -2.41% |
| 2012 | +10.6%Positive MonthJan 2012: +10.61% | +6.3%Positive MonthFeb 2012: +6.32% | -5.2%Negative MonthMar 2012: -5.19% | +2.6%Positive MonthApr 2012: +2.62% | -11.7%Negative MonthMay 2012: -11.68% | +4.4%Positive MonthJun 2012: +4.36% | +1.8%Neutral MonthJul 2012: +1.83% | -1.6%Neutral MonthAug 2012: -1.59% | +7.0%Positive MonthSep 2012: +6.97% | +3.8%Positive MonthOct 2012: +3.85% | +1.8%Neutral MonthNov 2012: +1.80% | +2.8%Positive MonthDec 2012: +2.84% |
| 2011 | +1.8%Neutral MonthJan 2011: +1.79% | -0.5%Neutral MonthFeb 2011: -0.47% | +0.8%Neutral MonthMar 2011: +0.81% | +0.8%Neutral MonthApr 2011: +0.82% | -0.2%Neutral MonthMay 2011: -0.15% | -5.4%Negative MonthJun 2011: -5.43% | +0.2%Neutral MonthJul 2011: +0.19% | -8.5%Negative MonthAug 2011: -8.49% | -14.3%Negative MonthSep 2011: -14.33% | +12.9%Positive MonthOct 2011: +12.92% | -9.4%Negative MonthNov 2011: -9.44% | +2.5%Positive MonthDec 2011: +2.47% |
| 2010 | -8.0%Negative MonthJan 2010: -8.00% | +2.4%Positive MonthFeb 2010: +2.42% | +3.1%Positive MonthMar 2010: +3.06% | -0.6%Neutral MonthApr 2010: -0.62% | -6.4%Negative MonthMay 2010: -6.36% | +1.8%Neutral MonthJun 2010: +1.84% | +4.5%Positive MonthJul 2010: +4.48% | -2.3%Negative MonthAug 2010: -2.35% | +8.9%Positive MonthSep 2010: +8.87% | +3.3%Positive MonthOct 2010: +3.30% | -0.4%Neutral MonthNov 2010: -0.38% | +0.1%Neutral MonthDec 2010: +0.12% |
| 2009 | -7.7%Negative MonthJan 2009: -7.71% | -3.5%Negative MonthFeb 2009: -3.51% | +6.0%Positive MonthMar 2009: +5.97% | +14.3%Positive MonthApr 2009: +14.33% | +17.1%Positive MonthMay 2009: +17.07% | +1.1%Neutral MonthJun 2009: +1.14% | +11.9%Positive MonthJul 2009: +11.94% | -4.1%Negative MonthAug 2009: -4.13% | +6.2%Positive MonthSep 2009: +6.24% | +3.8%Positive MonthOct 2009: +3.81% | +0.3%Neutral MonthNov 2009: +0.32% | +0.2%Neutral MonthDec 2009: +0.23% |
| 2008 | -15.7%Negative MonthJan 2008: -15.67% | +3.7%Positive MonthFeb 2008: +3.73% | -6.1%Negative MonthMar 2008: -6.09% | +12.7%Positive MonthApr 2008: +12.72% | -4.7%Negative MonthMay 2008: -4.75% | -9.9%Negative MonthJun 2008: -9.91% | +2.8%Positive MonthJul 2008: +2.85% | -6.5%Negative MonthAug 2008: -6.46% | -15.3%Negative MonthSep 2008: -15.27% | -22.5%Negative MonthOct 2008: -22.47% | -0.6%Neutral MonthNov 2008: -0.58% | +3.6%Positive MonthDec 2008: +3.59% |
| 2007 | +0.7%Neutral MonthJan 2007: +0.71% | -2.3%Negative MonthFeb 2007: -2.26% | +0.8%Neutral MonthMar 2007: +0.76% | +2.6%Positive MonthApr 2007: +2.62% | +1.6%Neutral MonthMay 2007: +1.55% | +5.5%Positive MonthJun 2007: +5.52% | +6.5%Positive MonthJul 2007: +6.49% | +3.4%Positive MonthAug 2007: +3.45% | +13.2%Positive MonthSep 2007: +13.17% | +15.5%Positive MonthOct 2007: +15.51% | -8.6%Negative MonthNov 2007: -8.64% | -2.9%Negative MonthDec 2007: -2.90% |
| 2006 | β | β | β | β | β | +2.6%Positive MonthJun 2006: +2.58% | +4.3%Positive MonthJul 2006: +4.33% | +2.5%Positive MonthAug 2006: +2.48% | +0.9%Neutral MonthSep 2006: +0.87% | +4.5%Positive MonthOct 2006: +4.45% | +3.5%Positive MonthNov 2006: +3.47% | +5.3%Positive MonthDec 2006: +5.30% |
| AvgΒ±SD |
Each cell is the percentage change in closing price from the end of the prior month to the end of this month. The bottom row shows the average return for that calendar month across the selected years, plus or minus one standard deviation β the range that historically contained roughly two-thirds of outcomes. Past monthly patterns are not a forecast of future returns.
This aggregates every month by calendar position β all Januaries together, all Februaries together, and so on β to show whether a given month has leaned positive or negative historically. βSimpleβ counts each month as +1 or β1. βWeightedβ gives larger moves more influence: +2 above +10%, β2 below β10%. With only 21 years of history for this asset, each monthβs score reflects a small number of observations β read it as a historical tendency, not a reliable seasonal pattern.
This tracks a running tally across the assetβs full price history: each month adds or subtracts based on whether it was positive or negative. A rising line means more positive months than negative so far; a flattening or falling line means recent months have leaned negative. This measures historical month-to-month consistency, not expected future performance.
Year-to-date return is calculated by dividing each dayβs closing price by the price on January 1st of that year (or the assetβs first available price if it began trading mid-year). The custom average line shows the mean YTD return at each calendar day across the selected years. The standard deviation band shows the range within which returns have historically fallen β at 1 SD, roughly two-thirds of years; at 2 SD, roughly 95%. Past year-to-date patterns do not predict future returns. The average and standard deviation band are computed from the year set chosen in βAverage fromβ, which is independent of which year lines are displayed. The current in-progress year is excluded from these calculations, since a partial year is not comparable to complete ones. Election-cycle groupings follow the US presidential calendar and are offered only for US and crypto assets.
Rule-based from financial data. Not advice.
The Hang Seng Index tracks the largest companies listed on the Hong Kong Stock Exchange, including a heavy weighting of mainland Chinese firms via H-shares and Red Chips. It is the most widely-followed measure of the Hong Kong equity market and a key proxy for Greater China sentiment.
Launched on 24 November 1969 with a base value of 100 backdated to 31 July 1964, the index is published by Hang Seng Indexes Company, a subsidiary of Hang Seng Bank. The constituent set has expanded over the decades to better reflect the rise of Chinese companies in Hong Kong listings.
