BT Group (BT-A-L)
FTSE 100 · Telecommunications services · data since 1988-07-01 · last close 2026-09-09
BT Group (BT-A-L) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4.0 | 13.3 | -2.9 | 2.9 | -3.6 | -9.0 | 5.9 | 2.0 | -3.6 | · | · | · |
| 2025 | -1.5 | 12.6 | 3.8 | 4.8 | 3.3 | 8.0 | 6.9 | 4.6 | -11.7 | -2.8 | -2.6 | 1.7 |
| 2024 | -9.2 | -6.9 | 5.0 | -6.4 | 27.3 | 7.5 | 0.4 | -1.3 | 6.4 | -6.5 | 15.2 | -9.6 |
| 2023 | 11.2 | 11.8 | 4.6 | 8.9 | -7.5 | -16.7 | -0.3 | -5.2 | 0.9 | -3.4 | 9.0 | 0.6 |
| 2022 | 15.3 | -4.8 | -2.2 | -2.7 | 5.6 | -0.5 | -13.2 | -6.8 | -19.5 | 7.0 | -6.5 | -7.7 |
| 2021 | -5.0 | -1.6 | 25.3 | 6.6 | 6.0 | 10.9 | -10.5 | -2.2 | -5.9 | -13.1 | 14.2 | 6.9 |
| 2020 | -16.4 | -12.0 | -16.8 | -1.6 | 0.2 | -1.9 | -13.6 | 6.2 | -6.0 | 3.1 | 15.2 | 13.2 |
| 2019 | -2.4 | -7.6 | 3.8 | 2.7 | -15.4 | 1.4 | -1.7 | -14.2 | 7.8 | 14.6 | -6.4 | 0.5 |
| 2018 | -6.0 | -6.1 | -5.1 | 9.7 | -17.9 | 6.3 | 7.2 | -6.9 | 3.7 | 6.8 | 8.9 | -9.1 |
| 2017 | -17.2 | 7.7 | -2.7 | -4.2 | 1.6 | -4.8 | 6.4 | -6.7 | -3.0 | -8.3 | 0.2 | 4.2 |
| 2016 | 2.8 | 0.3 | -9.5 | 0.6 | -0.1 | -7.4 | 0.8 | -6.5 | 0.7 | -3.4 | -5.0 | 2.8 |
| 2015 | 4.1 | 9.1 | -3.9 | 4.0 | -2.0 | 0.8 | 3.2 | -5.8 | -4.1 | 10.8 | 6.8 | -5.0 |
| 2014 | 1.0 | 6.9 | -7.4 | -2.9 | 7.7 | -3.0 | 0.9 | -0.4 | -1.9 | -3.2 | 11.6 | -2.1 |
| 2013 | 7.6 | 7.7 | 3.9 | -0.7 | 9.4 | 2.4 | 10.2 | -4.5 | 5.3 | 10.1 | -1.1 | 1.8 |
| 2012 | 6.6 | 5.7 | 5.3 | -6.9 | -2.1 | 2.5 | 2.8 | 0.2 | 6.0 | -7.9 | 9.9 | -1.0 |
| 2011 | -2.9 | 3.8 | 1.9 | 5.5 | 2.5 | 0.3 | -0.3 | -14.7 | 1.3 | 8.3 | 1.0 | 0.5 |
| 2010 | 1.9 | -16.5 | 7.8 | 2.3 | 0.2 | 2.4 | 9.3 | -6.3 | 5.1 | 9.8 | 10.6 | 6.4 |
| 2009 | -22.4 | -13.5 | -13.8 | 20.2 | -7.0 | 16.1 | 24.8 | 9.3 | -6.1 | 1.0 | 6.8 | -3.7 |
| 2008 | -5.0 | -12.4 | -4.3 | 2.5 | -0.3 | -9.9 | -13.0 | -0.8 | -6.5 | -28.6 | 17.5 | 0.0 |
| 2007 | 1.5 | -3.4 | 2.7 | 4.1 | 4.2 | 0.9 | -5.3 | 0.3 | -2.8 | 6.2 | -12.0 | -4.9 |
| 2006 | -7.7 | 0.1 | 7.9 | -1.2 | 6.8 | 2.1 | -0.6 | 3.7 | 8.7 | 3.8 | 2.2 | 6.1 |
| 2005 | 2.5 | 0.2 | -1.4 | -2.8 | 6.8 | 7.8 | -1.1 | -5.3 | 3.1 | -4.2 | 0.2 | 4.3 |
| 2004 | -6.6 | 0.6 | 0.1 | 0.8 | 2.5 | 8.5 | -4.9 | -3.0 | -1.8 | 3.3 | 4.7 | 4.4 |
| 2003 | -11.0 | -5.8 | -4.0 | 14.2 | 7.4 | 5.8 | -3.9 | -6.0 | -2.2 | 3.1 | -6.3 | 8.4 |
| 2002 | -10.8 | 13.9 | 9.5 | -7.9 | 8.6 | -10.1 | -20.0 | -0.7 | -17.8 | 10.3 | 15.7 | -7.1 |
| 2001 | 24.5 | -19.9 | -10.5 | 9.2 | -13.0 | 2.8 | 9.2 | -13.5 | -19.4 | 2.4 | 2.7 | -9.1 |
| 2000 | -21.9 | -6.4 | 6.2 | -2.0 | -15.8 | -11.9 | 3.3 | -0.8 | -18.7 | 13.6 | -24.6 | -6.1 |
| 1999 | 46.4 | 16.2 | -6.5 | 3.3 | -0.3 | 2.1 | 1.1 | -11.3 | -3.5 | 20.0 | 14.1 | 20.2 |
| 1998 | 22.3 | 4.9 | 6.0 | -0.2 | -1.5 | 15.8 | 19.9 | -8.7 | -2.1 | -2.6 | 7.6 | -23.4 |
| 1997 | 8.4 | -0.5 | 4.7 | 1.6 | -2.2 | 0.8 | -4.4 | -6.2 | 2.5 | 10.6 | 0.9 | 4.7 |
| 1996 | 0.8 | 4.3 | -0.8 | -1.4 | -2.5 | -2.7 | 5.1 | 3.3 | -5.1 | -0.3 | 6.5 | 4.3 |
| 1995 | 5.6 | -5.3 | -26.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.9 | -2.1 | -4.9 | 0.3 | -6.2 |
| 1994 | 0.4 | -8.4 | -9.7 | -6.1 | -1.6 | 1.4 | 0.4 | 5.8 | -6.8 | 8.2 | -3.7 | -0.5 |
| 1993 | 0.9 | 2.7 | 5.9 | -8.6 | 4.3 | 1.5 | -3.3 | 3.3 | 1.1 | 6.8 | 1.9 | 0.3 |
| 1992 | 0.1 | 1.8 | -6.3 | 8.9 | 5.1 | -6.5 | 0.9 | 2.2 | 1.7 | 5.7 | 10.3 | -1.8 |
| 1991 | 3.2 | 6.3 | 9.2 | 6.0 | 5.7 | -8.7 | 10.9 | 2.1 | 0.6 | -3.7 | -7.6 | -6.9 |
| 1990 | -2.6 | -0.5 | -6.5 | -12.5 | 17.1 | 5.6 | -4.3 | -2.4 | -6.7 | -0.4 | 10.3 | -2.1 |
| 1989 | 12.7 | -6.6 | 1.9 | -2.5 | -4.1 | -1.9 | 1.2 | 4.7 | 1.3 | -6.5 | 7.1 | 14.0 |
| 1988 | · | · | · | · | · | · | -6.4 | -5.1 | 5.2 | 1.2 | 3.9 | 0.6 |
| Avg | 0.9 | -0.2 | -0.7 | 1.3 | 0.9 | 0.5 | 0.6 | -2.5 | -2.5 | 1.8 | 3.7 | -0.0 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
BT-A-L seasonality — average by calendar month
BT Group has monthly history back to 1988. Its strongest month by median is November — positive in 28 of 38 years, median +4.3%, and higher in 6 of the last 9. August is the soft spot, down in 25 of 39 with a median of -2.2%. Across its full record it has closed 54% of months higher, swings ±8.6% in an average month and has fallen 93.2% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +0.9% | -0.2% | -0.7% | +1.3% | +0.9% | +0.5% | +0.6% | -2.5% | -2.4% | +1.8% | +3.7% | -0.0% |
| Win rate | 58%/38 | 53%/38 | 50%/38 | 53%/38 | 53%/38 | 61%/38 | 54%/39 | 36%/39 | 45%/38 | 58%/38 | 74%/38 | 55%/38 |
Win rate = share of positive months / sample size.
BT-A-L risk & extremes
BT-A-L drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
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Frequently asked questions
What was BT Group's best month?+
BT Group's strongest completed month on record is January 1999, at +46.38%.
What was BT Group's worst month?+
Its weakest completed month on record is October 2008, at -28.55%.
Is BT Group up this year?+
BT Group is up 7.50% year to date, measured from its last close before 1 January.
What is BT Group's 1-year return?+
-2.67% 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 BT Group's biggest drawdown?+
The deepest peak-to-trough fall on record is 93.2%, measured on month-end closes since 1988.
Which calendar month is historically best for BT Group?+
November has the highest average return across every completed November since 1988. An average is not a forecast.
About BT Group
BT Group is a FTSE 100 company, a telecommunications services business worth about $26 billion. It competes for the only truly scarce resource: your attention — with price receipts on this site going back to 1988. Since 1988 it is down 14% overall — surviving is its own genre of awesome.
Did you know?
- Its best month on record was January 1999 at +46.38%; its worst, October 2008 at -28.55%.
- It has closed November in the green 28 out of 38 times — past performance, future shrug.
Trivia for entertainment — the numbers come from our price data; the jokes don't.