Does Mattel (MAT) stock go up or down depending on the month?
Mattel month by month, year by year
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +5.3% | -18.9% | -14.3% | +3.8% | -0.9% | -7.1% | +8.7% | |||||
| 2025 | +5.1% | +14.3% | -8.8% | -18.2% | +19.2% | +4.1% | -13.7% | +7.6% | -8.0% | +9.2% | +14.9% | -6.1% |
| 2024 | -5.2% | +10.1% | +0.6% | -7.5% | -2.9% | -8.6% | +18.6% | -1.6% | +0.4% | +7.0% | -6.7% | -6.8% |
| 2023 | +14.7% | -12.1% | +2.3% | -2.2% | -3.3% | +12.2% | +9.0% | +4.0% | -0.6% | -13.4% | -0.4% | -0.6% |
| 2022 | -3.0% | +19.4% | -11.1% | +9.5% | +3.3% | -11.1% | +3.9% | -4.7% | -14.4% | +0.1% | -3.9% | -2.1% |
| 2021 | +3.8% | +11.5% | -1.4% | +7.7% | -1.2% | -5.2% | +8.1% | -1.7% | -13.1% | +17.5% | -2.8% | +1.7% |
| 2020 | +8.0% | -19.4% | -25.3% | -1.0% | +5.6% | +5.0% | +14.9% | -3.2% | +8.8% | +17.7% | +12.5% | +12.7% |
| 2019 | +18.5% | +21.8% | -9.8% | -6.2% | -19.2% | +13.8% | +30.2% | -32.9% | +16.2% | +4.8% | -2.0% | +15.8% |
| 2018 | +3.0% | +0.4% | -17.3% | +12.5% | +4.9% | +5.8% | -3.3% | -2.8% | +1.7% | -13.5% | +2.4% | -28.1% |
| 2017 | -4.9% | -1.8% | -0.5% | -12.5% | +2.2% | -6.0% | -7.0% | -19.0% | -4.6% | -8.8% | +29.2% | -15.7% |
| 2016 | +1.5% | +17.9% | +3.4% | -7.5% | +2.5% | -1.9% | +6.7% | -0.7% | -8.6% | +4.1% | +0.1% | -12.7% |
| 2015 | -13.1% | -2.2% | -13.2% | +23.2% | -8.3% | -0.5% | -9.7% | +0.9% | -10.1% | +16.7% | +1.1% | +9.3% |
| 2014 | -20.5% | -1.4% | +7.5% | -2.2% | -1.0% | +0.4% | -9.1% | -2.6% | -11.1% | +1.4% | +1.5% | -1.9% |
| 2013 | +8.3% | +7.4% | +4.3% | -2.0% | +1.3% | -7.2% | -3.6% | +3.4% | +6.0% | +4.3% | +2.8% | |
| Average | +1.0% | +3.4% | -5.7% | +0.3% | -0.1% | +0.2% | +3.6% | -4.6% | -3.1% | +3.8% | +3.9% | -2.5% |
| % of years up | 62% | 57% | 36% | 43% | 43% | 50% | 57% | 23% | 38% | 77% | 62% | 38% |
| Years observed | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Mattel month by month: the summary
Over 2013-2026, here's what Mattel (MAT) stock did each month, on average: January +1.0% (up 62% of 13 years), February +3.4% (up 57% of 14 years), March -5.7% (up 36% of 14 years), April +0.3% (up 43% of 14 years), May -0.1% (up 43% of 14 years), June +0.2% (up 50% of 14 years), July +3.6% (up 57% of 14 years), August -4.6% (up 23% of 13 years), September -3.1% (up 38% of 13 years), October +3.8% (up 77% of 13 years), November +3.9% (up 62% of 13 years), December -2.5% (up 38% of 13 years). In other words, MAT historically rose in January, February, April, June, July, October, November, and fell in March, May, August, September, December.
Does Mattel really go up in November?
Over 2013-2026, November is Mattel's strongest month: +3.9% on average, positive in 8 of 13 years. At the other end, March shows -5.7%. 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 Mattel stock go up or down in October?
Over 13 years, MAT rose +3.8% on average in October, finishing the month up 10 times out of 13 (77%). Median: +4.8%. It's one of its most consistent months. ⚠️ 13 years of data is not a prediction.
Does Mattel stock go up or down in August?
Over 13 years, MAT fell -4.6% on average in August, finishing the month up 3 times out of 13 (23%). Median: -2.6%. It's one of its weakest months. ⚠️ 13 years of data is not a prediction.
Does Mattel stock go up or down in July?
Over 14 years, MAT rose +3.6% on average in July, finishing the month up 8 times out of 14 (57%). Median: +5.3%. Results are split year to year — there's no clear pattern. ⚠️ 14 years of data is not a prediction.
Does Mattel stock go up or down in February?
Over 14 years, MAT rose +3.4% on average in February, finishing the month up 8 times out of 14 (57%). Median: +4.3%. Results are split year to year — there's no clear pattern. ⚠️ 14 years of data is not a prediction.
Does Mattel stock go up or down in September?
Over 13 years, MAT fell -3.1% on average in September, finishing the month up 5 times out of 13 (38%). Median: -4.6%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Mattel stock go up or down in December?
Over 13 years, MAT fell -2.5% on average in December, finishing the month up 5 times out of 13 (38%). Median: -1.9%. 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 Mattel stock?
Historically, November: over the last 14 years, MAT gained +3.9% on average that month and finished up 62% of the time (13 years observed). March is the weakest month (-5.7%). This is not a prediction: 14 years is a small sample, and the past is under no obligation to repeat.
Why does Mattel stock often rise in November?
November has averaged as its best month over 14 years (+3.9%, up 62% 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 MAT it's November (+3.9% 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 MAT, October is the most consistent month (77% 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 MAT'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.