Straits Times Index (STI)
Benchmark index · Singapore · data since 1987-12-28 · last close 2026-07-24
1d
+0.12%
7d
+1.43%
30d
+7.14%
YTD
+20.28%
1y
+30.78%
Straits Times Index (STI) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 5.6 | 1.8 | -2.2 | 0.6 | 2.5 | 2.6 | 8.1 | · | · | · | · | · |
| 2025 | 1.8 | 1.0 | 2.0 | -3.5 | 1.6 | 1.8 | 5.3 | 2.3 | 0.7 | 3.0 | 2.1 | 2.7 |
| 2024 | -2.7 | -0.3 | 2.6 | 2.1 | 1.3 | -0.1 | 3.7 | -0.4 | 4.1 | -0.7 | 5.1 | 1.3 |
| 2023 | 3.5 | -3.1 | -0.1 | 0.4 | -3.4 | 1.5 | 5.2 | -4.2 | -0.5 | -4.7 | 0.2 | 5.4 |
| 2022 | 4.0 | -0.2 | 5.1 | -1.5 | -3.7 | -4.0 | 3.5 | 0.3 | -2.8 | -1.2 | 6.4 | -1.2 |
| 2021 | 2.1 | 1.6 | 7.3 | 1.7 | -1.7 | -1.1 | 1.2 | -3.5 | 1.0 | 3.6 | -4.9 | 2.7 |
| 2020 | -2.1 | -4.5 | -17.6 | 5.8 | -4.3 | 3.1 | -2.3 | 0.1 | -2.6 | -1.7 | 15.8 | 1.4 |
| 2019 | 4.0 | 0.7 | 0.0 | 5.8 | -8.3 | 6.5 | -0.6 | -5.9 | 0.4 | 3.5 | -1.1 | 0.9 |
| 2018 | 3.9 | -0.5 | -2.6 | 5.4 | -5.1 | -4.7 | 1.6 | -3.2 | 1.4 | -7.3 | 3.3 | -1.6 |
| 2017 | 5.8 | 1.6 | 2.5 | 0.0 | 1.1 | 0.5 | 3.2 | -1.6 | -1.8 | 4.8 | 1.8 | -0.9 |
| 2016 | -8.8 | 1.4 | 6.5 | -0.1 | -1.7 | 1.8 | 1.0 | -1.7 | 1.7 | -1.9 | 3.2 | -0.8 |
| 2015 | 0.8 | 0.3 | 1.3 | 1.2 | -2.7 | -2.2 | -3.5 | -8.8 | -4.5 | 7.4 | -4.8 | 0.9 |
| 2014 | -4.4 | 2.8 | 2.5 | 2.4 | 0.9 | -1.2 | 3.6 | -1.4 | -1.5 | -0.1 | 2.3 | 0.4 |
| 2013 | 3.6 | -0.4 | 1.2 | 1.8 | -1.7 | -4.9 | 2.3 | -6.0 | 4.6 | 1.4 | -1.1 | -0.3 |
| 2012 | 9.8 | 3.0 | 0.6 | -1.1 | -6.9 | 3.8 | 5.5 | -0.4 | 1.1 | -0.7 | 1.0 | 3.2 |
| 2011 | -0.3 | -5.3 | 3.2 | 2.1 | -0.4 | -1.3 | 2.2 | -9.5 | -7.3 | 6.8 | -5.4 | -2.1 |
| 2010 | -4.7 | 0.2 | 5.0 | 3.0 | -7.5 | 3.0 | 5.4 | -1.3 | 5.0 | 1.4 | 0.1 | 1.4 |
| 2009 | -0.9 | -8.7 | 6.6 | 13.0 | 21.3 | 0.2 | 14.0 | -2.5 | 3.1 | -0.8 | 3.0 | 5.4 |
| 2008 | -14.4 | 1.5 | -0.6 | 4.7 | 1.4 | -7.7 | -0.6 | -6.5 | -13.9 | -23.9 | -3.4 | 1.7 |
| 2007 | 4.7 | -0.7 | 4.1 | 4.0 | 4.5 | 1.1 | -0.0 | -4.4 | 9.2 | 2.7 | -7.5 | -1.1 |
| 2006 | 2.8 | 2.9 | 2.1 | 3.0 | -8.7 | 2.2 | 0.4 | 1.5 | 3.5 | 5.2 | 5.1 | 5.2 |
| 2005 | 1.5 | 1.1 | 1.0 | -0.8 | 1.7 | 2.4 | 6.3 | -3.3 | 1.3 | -3.8 | 3.8 | 2.0 |
| 2004 | 4.8 | 2.2 | -1.6 | -0.9 | -2.9 | 2.8 | 2.9 | 1.4 | 3.5 | -0.2 | 2.4 | 1.9 |
| 2003 | -3.7 | -1.4 | -0.5 | 1.1 | 5.3 | 7.3 | 7.7 | 2.6 | 2.0 | 5.7 | -0.6 | 3.0 |
| 2002 | 10.1 | -4.0 | 5.1 | -4.3 | -3.1 | -7.1 | -2.9 | -1.3 | -9.2 | 8.2 | -4.9 | -3.6 |
| 2001 | 3.4 | -2.2 | -14.0 | 2.9 | -3.8 | 4.2 | -3.5 | -2.8 | -18.5 | 3.7 | 8.1 | 9.8 |
| 2000 | -10.1 | -4.9 | 0.6 | 1.5 | -17.1 | 13.5 | 0.7 | 4.7 | -7.0 | -1.0 | -1.2 | -1.3 |
| 1999 | 2.5 | -1.1 | 7.5 | 24.2 | 0.9 | 13.9 | -1.0 | -1.3 | -4.5 | 1.3 | 9.3 | 10.8 |
| 1998 | -17.6 | 28.2 | 0.8 | -8.3 | -16.0 | -15.0 | -0.2 | -19.5 | 9.7 | 28.2 | 17.6 | -1.7 |
| 1997 | -0.0 | -0.9 | -5.6 | -3.3 | 3.0 | -3.8 | -1.1 | -8.2 | 8.3 | -18.9 | 4.7 | -7.9 |
| 1996 | 8.1 | -0.4 | -2.1 | 1.2 | -3.4 | -1.6 | -8.0 | 2.0 | 1.1 | -4.3 | 5.0 | 1.3 |
| 1995 | -7.0 | 2.1 | -1.6 | -1.0 | 5.2 | -3.9 | 3.0 | -0.5 | -1.2 | -0.6 | 1.0 | 6.5 |
| 1994 | -3.6 | 0.1 | -11.2 | 10.3 | -0.6 | -2.5 | -0.8 | 4.8 | 0.9 | 2.0 | -5.8 | -0.1 |
| 1993 | 6.3 | 2.7 | 0.2 | 6.9 | 6.2 | -4.8 | 0.3 | 11.0 | 0.0 | 4.7 | -0.3 | 15.7 |
| 1992 | 3.6 | -3.4 | -4.3 | 3.7 | 4.0 | -2.9 | -2.0 | -5.0 | -2.0 | 2.7 | 5.9 | 3.8 |
| 1991 | 9.7 | 15.2 | 2.1 | 4.2 | 0.0 | -4.1 | -0.5 | -3.4 | -5.0 | 3.4 | 3.3 | 1.6 |
| 1990 | 2.3 | 2.3 | 2.0 | -7.8 | 6.5 | -1.7 | 1.8 | -17.8 | -14.0 | 5.0 | -4.1 | 4.4 |
| 1989 | 9.1 | -2.2 | 7.3 | 5.8 | 1.6 | 2.2 | 4.9 | -1.2 | 1.4 | -3.1 | 5.9 | 5.0 |
| 1988 | 10.4 | -2.2 | 4.2 | 4.3 | 3.5 | 9.4 | 4.6 | -9.3 | -0.1 | 0.4 | -3.3 | 3.3 |
| 1987 | · | · | · | · | · | · | · | · | · | · | · | -0.1 |
| Avg | 1.1 | 0.7 | 0.5 | 2.3 | -0.8 | 0.2 | 1.8 | -2.7 | -0.9 | 0.8 | 1.8 | 2.0 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
Seasonality — average by calendar month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +1.1% | +0.7% | +0.5% | +2.3% | -0.8% | +0.2% | +1.7% | -2.7% | -0.8% | +0.8% | +1.8% | +2.0% |
| Win rate | 64%/39 | 51%/39 | 67%/39 | 72%/39 | 49%/39 | 51%/39 | 63%/38 | 26%/38 | 55%/38 | 55%/38 | 63%/38 | 67%/39 |
Win rate = share of positive months / sample size.
Risk & extremes
Max drawdown
-67.7%
Worst peak-to-trough fall on record
Monthly volatility
±5.8%
Std. dev. of monthly returns
Positive months
57%
Share of completed months in the green
Best month
+28.22%
1998-02
Worst month
-23.94%
2008-10
Longest streaks
10▲ / 6▼
Consecutive up / down months
Drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
About Straits Times Index
Straits Times Index isn't a company — it's the scoreboard: Singapore's benchmark index, tracked here like any other asset, because sometimes the market itself is the most interesting ticker — with price history on this site back to 1987. And the long game: $100 at its first close here (1987) would be about $628 today.
Did you know?
- Its best month on record was February 1998 at +28.22%; its worst, October 2008 at -23.94%.
- It has closed April in the green 28 out of 39 times — past performance, future shrug.
Trivia for entertainment — the numbers come from our price data; the jokes don't.