CSI 300 (CSI300)
Benchmark index · China · data since 2021-03-11 · last close 2026-10-26
CSI 300 (CSI300) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1.6 | 0.1 | -5.5 | 8.0 | 1.8 | 1.8 | -9.0 | 2.1 | -5.8 | -5.8 | · | · |
| 2025 | -3.0 | 1.9 | -0.1 | -3.0 | 1.9 | 2.5 | 3.5 | 10.3 | 3.2 | 0.0 | -2.5 | 2.3 |
| 2024 | -6.3 | 9.3 | 0.6 | 1.9 | -0.7 | -3.3 | -0.6 | -3.5 | 21.0 | -3.2 | 0.7 | 0.5 |
| 2023 | 7.4 | -2.1 | -0.5 | -0.5 | -5.7 | 1.2 | 4.5 | -6.2 | -2.0 | -3.2 | -2.1 | -1.9 |
| 2022 | -7.6 | 0.4 | -7.8 | -4.9 | 1.9 | 9.6 | -7.0 | -2.2 | -6.7 | -7.8 | 9.8 | 0.5 |
| 2021 | · | · | -1.6 | 1.5 | 4.1 | -2.0 | -7.9 | -0.1 | 1.3 | 0.9 | -1.6 | 2.2 |
| Avg | -1.6 | 1.9 | -2.5 | 0.5 | 0.5 | 1.6 | -2.8 | 0.1 | 1.8 | -2.6 | 0.9 | 0.7 |
| Median | -3.0 | 0.4 | -1.0 | 0.5 | 1.8 | 1.5 | -3.8 | -1.2 | -0.4 | -3.2 | -1.6 | 0.5 |
October so far: -5.8% against an average of -2.6% and a median of -3.2% across 5 completed Octobers, 1 of them positive.
Values in %. Current and first-listed months are partial (greyed) and are left out of the Avg and Median rows.
returnsview.com
CSI300 seasonality — average by calendar month
CSI 300's record starts in 2021, so each calendar month rests on 6 observations — short enough to read as description rather than signal. February carries the highest average at +1.9%, but the median February is +0.4% and 4 of 5 have finished green: +9% in 2024 does most of the lifting. The steadier month is May — positive in 4 of 6 years, median +1.8%. July is the soft spot, down in 4 of 6 with a median of -3.8%. Across its full record it has closed 48% of months higher, swings ±5.2% in an average month and has fallen 40.9% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | -1.6% | +1.9% | -2.5% | +0.5% | +0.5% | +1.6% | -2.8% | +0.1% | +1.8% | -2.6% | +0.9% | +0.7% |
| Win rate | 40%/5 | 80%/5 | 17%/6 | 50%/6 | 67%/6 | 67%/6 | 33%/6 | 33%/6 | 50%/6 | 20%/5 | 40%/5 | 80%/5 |
Win rate = share of positive months / sample size.
CSI300 risk & extremes
CSI300 drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
Related stocks
Frequently asked questions
What was CSI 300's best month?+
CSI 300's strongest completed month on record is September 2024, at +20.97%.
What was CSI 300's worst month?+
Its weakest completed month on record is July 2026, at -9.04%.
Is CSI 300 up this year?+
CSI 300 is down 11.37% year to date, measured from its last close before 1 January.
What is CSI 300's 1-year return?+
-11.95% 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 CSI 300's biggest drawdown?+
The deepest peak-to-trough fall on record is 40.9%, measured on month-end closes since 2021.
Which calendar month is historically best for CSI 300?+
February has the highest average return across every completed February since 2021. An average is not a forecast.
About CSI 300
CSI 300 isn't a company — it's the scoreboard: China'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 2021. Since 2021 it is down 14% overall — surviving is its own genre of awesome.
Did you know?
- Its best month on record was September 2024 at +20.97%; its worst, July 2026 at -9.04%.
- It has closed February in the green 4 out of 5 times — calendar astrology, but the fun kind.
Trivia for entertainment — the numbers come from our price data; the jokes don't.