Does Boeing (BA) stock go up or down depending on the month?
Boeing month by month, year by year
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +7.6% | -2.6% | -12.5% | +15.1% | +0.9% | -6.4% | -0.2% | |||||
| 2025 | -0.3% | -1.1% | -2.3% | +7.4% | +13.1% | +1.1% | +5.9% | +5.8% | -8.0% | -6.9% | -6.0% | +14.9% |
| 2024 | -19.0% | -3.5% | -5.3% | -13.0% | +5.8% | +2.5% | +4.7% | -8.8% | -12.5% | -1.8% | +4.1% | +13.9% |
| 2023 | +11.8% | -5.4% | +5.4% | -2.7% | -0.5% | +2.7% | +13.1% | -6.2% | -14.4% | -2.5% | +24.0% | +12.5% |
| 2022 | -0.5% | +2.5% | -6.7% | -22.3% | -11.7% | +4.0% | +16.5% | +0.6% | -24.4% | +17.7% | +25.5% | +6.5% |
| 2021 | -9.3% | +9.2% | +20.1% | -8.0% | +5.4% | -3.0% | -5.5% | -3.1% | +0.2% | -5.9% | -4.4% | +1.8% |
| 2020 | -2.3% | -13.6% | -45.8% | -5.4% | +3.4% | +25.7% | -13.8% | +8.7% | -3.8% | -12.6% | +45.9% | +1.6% |
| 2019 | +19.6% | +14.1% | -13.3% | -1.0% | -9.6% | +6.6% | -6.3% | +6.7% | +4.5% | -10.7% | +7.7% | -11.0% |
| 2018 | +20.2% | +2.2% | -9.5% | +1.7% | +5.6% | -4.7% | +6.2% | -3.8% | +8.5% | -4.6% | -2.3% | -7.0% |
| 2017 | +5.0% | +10.3% | -1.9% | +4.5% | +1.5% | +5.4% | +22.6% | -1.2% | +6.1% | +1.5% | +7.3% | +6.5% |
| 2016 | -16.9% | -1.6% | +7.4% | +6.2% | -6.4% | +2.9% | +2.9% | -3.1% | +1.8% | +8.1% | +5.7% | +3.4% |
| 2015 | +11.8% | +3.8% | -0.5% | -4.5% | -2.0% | -1.3% | +3.9% | -9.4% | +0.2% | +13.1% | -1.8% | -0.6% |
| 2014 | -8.2% | +2.9% | -2.7% | +2.8% | +4.8% | -5.9% | -5.3% | +5.2% | +0.5% | -1.9% | +7.6% | -3.3% |
| 2013 | +4.1% | +11.6% | +6.5% | +8.3% | +3.5% | +2.6% | -1.1% | +13.1% | +11.1% | +2.9% | +1.7% | |
| Average | +1.5% | +1.5% | -4.0% | -0.9% | +1.3% | +2.4% | +3.4% | -0.7% | -2.2% | +0.4% | +8.9% | +3.1% |
| % of years up | 46% | 57% | 29% | 50% | 64% | 64% | 64% | 38% | 62% | 38% | 69% | 69% |
| Years observed | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Boeing month by month: the summary
Over 2013-2026, here's what Boeing (BA) stock did each month, on average: January +1.5% (up 46% of 13 years), February +1.5% (up 57% of 14 years), March -4.0% (up 29% of 14 years), April -0.9% (up 50% of 14 years), May +1.3% (up 64% of 14 years), June +2.4% (up 64% of 14 years), July +3.4% (up 64% of 14 years), August -0.7% (up 38% of 13 years), September -2.2% (up 62% of 13 years), October +0.4% (up 38% of 13 years), November +8.9% (up 69% of 13 years), December +3.1% (up 69% of 13 years). In other words, BA historically rose in January, February, May, June, July, October, November, December, and fell in March, April, August, September.
Does Boeing really go up in November?
Over 2013-2026, November is Boeing's strongest month: +8.9% on average, positive in 9 of 13 years. At the other end, March shows -4.0%. 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 Boeing stock go up or down in August?
Over 13 years, BA fell -0.7% on average in August, finishing the month up 5 times out of 13 (38%). Median: -1.2%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Boeing stock go up or down in July?
Over 14 years, BA rose +3.4% on average in July, finishing the month up 9 times out of 14 (64%). Median: +3.4%. Results are split year to year — there's no clear pattern. ⚠️ 14 years of data is not a prediction.
Does Boeing stock go up or down in December?
Over 13 years, BA rose +3.1% on average in December, finishing the month up 9 times out of 13 (69%). Median: +1.8%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Boeing stock go up or down in June?
Over 14 years, BA rose +2.4% on average in June, finishing the month up 9 times out of 14 (64%). Median: +2.6%. Results are split year to year — there's no clear pattern. ⚠️ 14 years of data is not a prediction.
Does Boeing stock go up or down in September?
Over 13 years, BA fell -2.2% on average in September, finishing the month up 8 times out of 13 (62%). Median: +0.2%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Boeing stock go up or down in February?
Over 14 years, BA rose +1.5% on average in February, finishing the month up 8 times out of 14 (57%). Median: +2.4%. Results are split year to year — there's no clear pattern. ⚠️ 14 years of data is not a prediction.
What is the best month to buy Boeing stock?
Historically, November: over the last 14 years, BA gained +8.9% on average that month and finished up 69% of the time (13 years observed). March is the weakest month (-4.0%). This is not a prediction: 14 years is a small sample, and the past is under no obligation to repeat.
Why does Boeing stock often rise in November?
November has averaged as its best month over 14 years (+8.9%, up 69% 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 BA it's November (+8.9% 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 BA, November is the most consistent month (69% 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 BA'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.