BIST 100 (XU100)
Benchmark index · Turkey · data since 1997-07-01 · last close 2026-09-08
BIST 100 (XU100) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 22.9 | -0.9 | -6.8 | 12.9 | -5.4 | 3.4 | -4.7 | 6.5 | 0.5 | · | · | · |
| 2025 | 1.8 | -3.5 | 0.0 | -6.0 | -0.7 | 10.3 | 8.0 | 5.1 | -2.5 | -0.4 | -0.7 | 3.3 |
| 2024 | 13.7 | 8.2 | -0.6 | 9.9 | 3.5 | 2.4 | -0.1 | -7.6 | -1.7 | -8.3 | 8.9 | 1.9 |
| 2023 | -9.7 | 5.2 | -8.1 | -4.0 | 5.8 | 17.9 | 25.3 | 9.7 | 5.3 | -9.8 | 5.8 | -6.0 |
| 2022 | 7.8 | -2.9 | 14.8 | 8.8 | 4.8 | -5.6 | 7.8 | 22.3 | 0.3 | 25.1 | 25.1 | 10.7 |
| 2021 | -0.2 | -0.1 | -5.4 | 0.4 | 1.6 | -4.5 | 2.7 | 5.7 | -4.5 | 8.2 | 18.9 | 2.6 |
| 2020 | 4.1 | -11.0 | -15.4 | 12.8 | 4.4 | 10.4 | -3.3 | -4.3 | 6.2 | -2.9 | 15.4 | 15.0 |
| 2019 | 14.0 | 0.4 | -10.3 | 1.7 | -5.1 | 6.5 | 5.8 | -5.3 | 8.6 | -6.3 | 8.6 | 7.0 |
| 2018 | 3.6 | -0.5 | -3.4 | -9.3 | -3.5 | -4.1 | 0.5 | -4.4 | 7.8 | -9.8 | 5.8 | -4.3 |
| 2017 | 10.4 | 1.4 | 1.7 | 6.4 | 3.0 | 3.0 | 7.1 | 2.3 | -6.5 | 7.0 | -5.6 | 10.9 |
| 2016 | 2.5 | 3.2 | 9.8 | 2.5 | -8.8 | -1.3 | -1.8 | 0.8 | 0.7 | 2.7 | -5.8 | 5.6 |
| 2015 | 3.8 | -5.4 | -3.9 | 3.8 | -1.1 | -0.9 | -2.8 | -5.9 | -1.3 | 7.0 | -5.3 | -4.7 |
| 2014 | -8.8 | 1.1 | 11.5 | 5.9 | 7.3 | -1.0 | 4.7 | -2.2 | -6.7 | 7.5 | 6.9 | -0.5 |
| 2013 | 0.7 | 0.7 | 8.3 | 0.2 | -0.1 | -11.3 | -3.8 | -9.5 | 12.2 | 4.2 | -2.4 | -10.5 |
| 2012 | 11.5 | 6.2 | 2.8 | -3.9 | -8.2 | 13.5 | 2.7 | 4.8 | -1.4 | 9.2 | 0.7 | 7.0 |
| 2011 | -4.1 | -3.1 | 5.1 | 7.5 | -9.0 | 0.3 | -1.5 | -13.4 | 10.7 | -6.1 | -2.8 | -6.0 |
| 2010 | 3.5 | -9.1 | 13.8 | 4.3 | -7.8 | 0.8 | 9.2 | 0.2 | 9.7 | 4.5 | -5.0 | 1.0 |
| 2009 | -3.5 | -7.4 | 7.2 | 22.9 | 10.6 | 5.6 | 15.4 | 9.2 | 2.9 | -1.5 | -3.9 | 16.5 |
| 2008 | -23.1 | 4.9 | -12.9 | 11.4 | -8.1 | -12.2 | 20.3 | -5.6 | -9.5 | -22.8 | -7.6 | 4.5 |
| 2007 | 5.3 | 0.6 | 5.4 | 3.0 | 4.7 | 0.0 | 12.2 | -5.0 | 7.7 | 6.6 | -5.9 | 2.4 |
| 2006 | 12.1 | 5.4 | -8.7 | 2.3 | -13.1 | -7.0 | 1.7 | 3.4 | -1.0 | 9.9 | -6.0 | 2.5 |
| 2005 | 9.4 | 3.9 | -10.0 | -7.7 | 7.0 | 6.8 | 9.9 | 4.4 | 7.8 | -4.1 | 19.2 | 4.4 |
| 2004 | -7.3 | 9.4 | 6.9 | -10.7 | -5.2 | 5.2 | 7.9 | 4.3 | 8.6 | 4.3 | -1.8 | 11.1 |
| 2003 | 6.4 | 4.9 | -18.1 | 21.5 | -1.1 | -4.4 | -2.9 | 9.8 | 12.4 | 20.7 | -7.2 | 27.4 |
| 2002 | -3.9 | -16.6 | 5.6 | -2.0 | -9.0 | -9.9 | 9.1 | -6.7 | -7.4 | 15.9 | 29.7 | -22.0 |
| 2001 | 13.2 | -17.7 | -8.8 | 54.2 | -12.0 | 3.0 | -11.5 | -0.4 | -22.8 | 29.1 | 18.1 | 18.5 |
| 2000 | 9.9 | -4.6 | -0.2 | 20.6 | -15.6 | -10.7 | -4.1 | -5.3 | -13.6 | 19.3 | -35.4 | 7.9 |
| 1999 | -1.1 | 51.5 | 17.1 | 17.6 | -5.3 | -2.4 | 17.3 | -13.6 | 21.0 | 8.0 | 29.0 | 79.8 |
| 1998 | 2.8 | -7.8 | -0.4 | 28.7 | -11.1 | 10.0 | 5.4 | -39.0 | -14.0 | -3.1 | 17.4 | 0.8 |
| 1997 | · | · | · | · | · | · | 5.5 | 1.4 | 31.0 | 9.8 | 1.2 | 19.9 |
| Avg | 3.4 | 0.6 | -0.1 | 7.4 | -2.7 | 0.8 | 4.7 | -1.3 | 2.0 | 4.3 | 4.0 | 7.1 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
XU100 seasonality — average by calendar month
BIST 100 has monthly history back to 1997. Its strongest month by median is July — positive in 20 of 30 years, median +5.0%, and higher in 6 of the last 9. May is the soft spot, down in 19 of 29 with a median of -3.5%. Across its full record it has closed 58% of months higher, swings ±11.4% in an average month and has fallen 63.4% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +3.4% | +0.6% | -0.1% | +7.4% | -2.7% | +0.8% | +4.7% | -1.3% | +2.1% | +4.3% | +4.0% | +7.1% |
| Win rate | 69%/29 | 52%/29 | 48%/29 | 76%/29 | 34%/29 | 55%/29 | 67%/30 | 50%/30 | 55%/29 | 62%/29 | 52%/29 | 76%/29 |
Win rate = share of positive months / sample size.
XU100 risk & extremes
XU100 drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
Frequently asked questions
What was BIST 100's best month?+
BIST 100's strongest completed month on record is December 1999, at +79.78%.
What was BIST 100's worst month?+
Its weakest completed month on record is August 1998, at -39.03%.
Is BIST 100 up this year?+
BIST 100 is up 27.92% year to date, measured from its last close before 1 January.
What is BIST 100's 1-year return?+
+37.86% over the past twelve months, comparing the latest close with the most recent close on or before the same date a year earlier.
What is BIST 100's biggest drawdown?+
The deepest peak-to-trough fall on record is 63.4%, measured on month-end closes since 1997.
Which calendar month is historically best for BIST 100?+
April has the highest average return across every completed April since 1997. An average is not a forecast.
About BIST 100
BIST 100 isn't a company — it's the scoreboard: Turkey'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 1997. And the long game: $100 at its first close here (1997) would be about $73,384 today.
Did you know?
- Its best month on record was December 1999 at +79.78%; its worst, August 1998 at -39.03%.
- It has closed April in the green 22 out of 29 times — calendar astrology, but the fun kind.
Trivia for entertainment — the numbers come from our price data; the jokes don't.