Does Group 1 Automotive, Inc. (GPI) stock go up or down depending on the month?
Group 1 Automotive, Inc. month by month, year by year
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -9.9% | -8.1% | +1.5% | +7.9% | -11.4% | -8.0% | -1.5% | |||||
| 2025 | +8.3% | +0.7% | -16.9% | +5.7% | +5.0% | +3.0% | -5.6% | +12.8% | -5.9% | -9.1% | +0.9% | -1.9% |
| 2024 | -14.7% | +4.1% | +8.0% | +0.6% | +5.8% | -4.4% | +23.0% | +3.0% | +1.7% | -4.9% | +16.9% | -1.0% |
| 2023 | +18.6% | +3.4% | +2.4% | -0.9% | -0.4% | +15.5% | +0.2% | +2.3% | +1.6% | -6.1% | +11.8% | +8.0% |
| 2022 | -13.0% | +7.1% | -7.8% | +3.8% | +3.1% | -5.5% | +4.2% | +0.9% | -20.0% | +21.1% | +11.8% | -6.7% |
| 2021 | +4.9% | +10.8% | +3.5% | +4.0% | -2.9% | -3.2% | +12.5% | -4.8% | +13.6% | -4.3% | +8.3% | +0.2% |
| 2020 | +0.8% | -15.4% | -48.1% | +27.9% | +11.2% | +4.8% | +27.4% | +2.9% | +2.3% | +20.0% | +12.0% | +10.4% |
| 2019 | +15.8% | +1.9% | +4.1% | +21.0% | -7.8% | +13.4% | +2.5% | -11.0% | +23.5% | +7.7% | +3.7% | -3.0% |
| 2018 | +10.5% | -12.2% | -5.1% | +0.0% | +7.5% | -10.3% | +11.1% | +10.1% | -15.8% | -11.0% | -2.7% | -6.2% |
| 2017 | +3.7% | -3.8% | -4.6% | -6.9% | -12.8% | +5.3% | -6.0% | +0.8% | +20.7% | +8.4% | +3.1% | -12.4% |
| 2016 | -29.1% | +3.9% | +5.3% | +12.2% | -5.6% | -20.6% | +26.3% | -4.8% | +7.7% | -5.7% | +20.4% | +7.4% |
| 2015 | -10.3% | +1.2% | +6.1% | -8.5% | +4.2% | +10.4% | +6.8% | -9.9% | -2.6% | +2.1% | -6.6% | -6.8% |
| 2014 | -13.9% | +9.2% | -1.6% | +9.9% | +11.6% | +4.7% | -12.3% | +8.4% | -9.3% | +17.5% | +4.8% | +0.1% |
| 2013 | -14.8% | +4.0% | +0.7% | +5.1% | +1.2% | +13.2% | +5.4% | +1.2% | -17.6% | +7.0% | +3.8% | |
| Average | -2.2% | -0.9% | -3.5% | +5.5% | +0.9% | +0.5% | +7.3% | +1.2% | +1.4% | +1.4% | +7.0% | -0.6% |
| % of years up | 54% | 64% | 57% | 79% | 57% | 57% | 71% | 69% | 62% | 46% | 85% | 46% |
| Years observed | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Group 1 Automotive, Inc. month by month: the summary
Over 2013-2026, here's what Group 1 Automotive, Inc. (GPI) stock did each month, on average: January -2.2% (up 54% of 13 years), February -0.9% (up 64% of 14 years), March -3.5% (up 57% of 14 years), April +5.5% (up 79% of 14 years), May +0.9% (up 57% of 14 years), June +0.5% (up 57% of 14 years), July +7.3% (up 71% of 14 years), August +1.2% (up 69% of 13 years), September +1.4% (up 62% of 13 years), October +1.4% (up 46% of 13 years), November +7.0% (up 85% of 13 years), December -0.6% (up 46% of 13 years). In other words, GPI historically rose in April, May, June, July, August, September, October, November, and fell in January, February, March, December.
Does Group 1 Automotive, Inc. really go up in July?
Over 2013-2026, July is Group 1 Automotive, Inc.'s strongest month: +7.3% on average, positive in 10 of 14 years. At the other end, March shows -3.5%. But a monthly gap is often built on one or two extreme years — the table above shows it: look at the spread, not just the average. Seasonality only means something when it has a cause (selling season, earnings calendar, year-end tax effects); with no identified cause, it's probably noise.
Frequently asked questions
Does Group 1 Automotive, Inc. stock go up or down in November?
Over 13 years, GPI rose +7.0% on average in November, finishing the month up 11 times out of 13 (85%). Median: +7.0%. It's one of its most consistent months. ⚠️ 13 years of data is not a prediction.
Does Group 1 Automotive, Inc. stock go up or down in August?
Over 13 years, GPI rose +1.2% on average in August, finishing the month up 9 times out of 13 (69%). Median: +2.3%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Group 1 Automotive, Inc. stock go up or down in April?
Over 14 years, GPI rose +5.5% on average in April, finishing the month up 11 times out of 14 (79%). Median: +3.9%. It's one of its most consistent months. ⚠️ 14 years of data is not a prediction.
Does Group 1 Automotive, Inc. stock go up or down in January?
Over 13 years, GPI fell -2.2% on average in January, finishing the month up 7 times out of 13 (54%). Median: +0.8%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Group 1 Automotive, Inc. stock go up or down in September?
Over 13 years, GPI rose +1.4% on average in September, finishing the month up 8 times out of 13 (62%). Median: +1.6%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Group 1 Automotive, Inc. stock go up or down in October?
Over 13 years, GPI rose +1.4% on average in October, finishing the month up 6 times out of 13 (46%). Median: -4.3%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
What is the best month to buy Group 1 Automotive, Inc. stock?
Historically, July: over the last 14 years, GPI gained +7.3% on average that month and finished up 71% of the time (14 years observed). March is the weakest month (-3.5%). This is not a prediction: 14 years is a small sample, and the past is under no obligation to repeat.
Why does Group 1 Automotive, Inc. stock often rise in July?
July has averaged as its best month over 14 years (+7.3%, up 71% of years). No clearly established recurring seasonal driver explains this month — it's a statistical tendency over 14 years of history, not a prediction.
Is there a best month to invest in the stock market in general?
There's no universal rule: every stock has its own seasonality. For GPI it's July (+7.3% on average over 14 years) — another stock will look completely different. The calendar effects people cite ("sell in May", the year-end rally) are market-wide averages, not laws: on GPI, November is the most consistent month (85% positive years). We also rank all 12 months for the whole market.
Does stock seasonality actually work?
Careful. A month that rose 14 times out of 14 can simply be chance: with 12 months and a dozen years, patterns appear naturally even in random data. Seasonality describes what happened; it doesn't explain why and predicts nothing. Treat it as context, never as a standalone buy signal.
What data is this table based on?
On GPI's real monthly closing prices from 2013 to 2026 (14 years), source Yahoo Finance. Each cell = the price change over that month. Price performance, excluding dividends. Incomplete months and quote gaps are excluded.