Does 3M (MMM) stock go up or down depending on the month?
3M month by month, year by year
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -4.3% | +7.9% | -12.2% | +0.9% | +4.5% | +5.7% | +8.9% | |||||
| 2025 | +17.9% | +1.9% | -5.3% | -5.4% | +6.8% | +2.6% | -2.0% | +4.2% | -0.2% | +7.3% | +3.3% | -6.9% |
| 2024 | -13.7% | -2.4% | +15.2% | +8.8% | +3.8% | +2.0% | +24.8% | +5.6% | +1.5% | -6.0% | +3.9% | -3.3% |
| 2023 | -4.0% | -6.4% | -2.4% | +1.1% | -12.1% | +7.3% | +11.4% | -4.3% | -12.2% | -2.8% | +8.9% | +10.3% |
| 2022 | -6.5% | -10.5% | +0.2% | -3.1% | +3.5% | -13.3% | +10.7% | -13.2% | -11.1% | +13.8% | +0.1% | -4.8% |
| 2021 | +0.5% | -0.3% | +10.1% | +2.3% | +3.0% | -2.2% | -0.3% | -1.6% | -9.9% | +1.9% | -4.8% | +4.5% |
| 2020 | -10.1% | -5.9% | -8.5% | +11.3% | +3.0% | -0.3% | -3.5% | +8.3% | -1.7% | -0.1% | +8.0% | +1.2% |
| 2019 | +5.1% | +3.5% | +0.2% | -8.8% | -15.7% | +8.5% | +0.8% | -7.4% | +1.7% | +0.4% | +2.9% | +3.9% |
| 2018 | +6.4% | -6.0% | -6.8% | -11.5% | +1.5% | -0.3% | +7.9% | -0.7% | -0.1% | -9.7% | +9.3% | -8.4% |
| 2017 | -2.1% | +6.6% | +2.7% | +2.4% | +4.4% | +1.8% | -3.4% | +1.6% | +2.7% | +9.7% | +5.6% | -3.2% |
| 2016 | +0.2% | +3.9% | +6.2% | +0.5% | +0.6% | +4.0% | +1.9% | +0.5% | -1.7% | -6.2% | +3.9% | +4.0% |
| 2015 | -1.2% | +3.9% | -2.2% | -5.2% | +1.7% | -3.0% | -1.9% | -6.1% | -0.3% | +10.9% | -0.4% | -3.8% |
| 2014 | -8.6% | +5.1% | +0.7% | +2.5% | +2.5% | +0.5% | -1.6% | +2.2% | -1.6% | +8.5% | +4.1% | +2.6% |
| 2013 | +3.4% | +2.2% | -1.5% | +5.3% | -0.8% | +7.4% | -3.3% | +5.1% | +5.4% | +6.1% | +5.1% | |
| Average | -1.6% | +0.3% | -0.0% | -0.4% | +0.9% | +0.9% | +4.4% | -1.1% | -2.1% | +2.5% | +3.9% | +0.1% |
| % of years up | 38% | 57% | 57% | 57% | 86% | 57% | 57% | 46% | 31% | 62% | 85% | 54% |
| Years observed | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
3M month by month: the summary
Over 2013-2026, here's what 3M (MMM) stock did each month, on average: January -1.6% (up 38% of 13 years), February +0.3% (up 57% of 14 years), March -0.0% (up 57% of 14 years), April -0.4% (up 57% of 14 years), May +0.9% (up 86% of 14 years), June +0.9% (up 57% of 14 years), July +4.4% (up 57% of 14 years), August -1.1% (up 46% of 13 years), September -2.1% (up 31% of 13 years), October +2.5% (up 62% of 13 years), November +3.9% (up 85% of 13 years), December +0.1% (up 54% of 13 years). In other words, MMM historically rose in February, May, June, July, October, November, December, and fell in January, March, April, August, September.
Does 3M really go up in July?
Over 2013-2026, July is 3M's strongest month: +4.4% on average, positive in 8 of 14 years. At the other end, September shows -2.1%. 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 3M stock go up or down in May?
Over 14 years, MMM rose +0.9% on average in May, finishing the month up 12 times out of 14 (86%). Median: +3.0%. It's one of its most consistent months. ⚠️ 14 years of data is not a prediction.
Does 3M stock go up or down in August?
Over 13 years, MMM fell -1.1% on average in August, finishing the month up 6 times out of 13 (46%). Median: -0.7%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does 3M stock go up or down in November?
Over 13 years, MMM rose +3.9% on average in November, finishing the month up 11 times out of 13 (85%). Median: +3.9%. It's one of its most consistent months. ⚠️ 13 years of data is not a prediction.
Does 3M stock go up or down in October?
Over 13 years, MMM rose +2.5% on average in October, finishing the month up 8 times out of 13 (62%). Median: +1.9%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does 3M stock go up or down in January?
Over 13 years, MMM fell -1.6% on average in January, finishing the month up 5 times out of 13 (38%). Median: -2.1%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does 3M stock go up or down in June?
Over 14 years, MMM rose +0.9% on average in June, finishing the month up 8 times out of 14 (57%). Median: +1.2%. 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 3M stock?
Historically, July: over the last 14 years, MMM gained +4.4% on average that month and finished up 57% of the time (14 years observed). September is the weakest month (-2.1%). This is not a prediction: 14 years is a small sample, and the past is under no obligation to repeat.
Why does 3M stock often rise in July?
July has averaged as its best month over 14 years (+4.4%, up 57% 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 MMM it's July (+4.4% 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 MMM, May is the most consistent month (86% 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 MMM'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.