Does Sunrun (RUN) stock go up or down depending on the month?
Sunrun month by month, year by year
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +3.3% | -30.3% | +2.3% | -6.1% | +31.3% | -20.0% | -26.7% | |||||
| 2025 | -2.2% | -19.9% | -19.2% | +17.6% | +8.7% | +9.2% | +25.4% | +55.7% | +8.3% | +20.1% | -2.5% | -9.1% |
| 2024 | -26.2% | -16.9% | +9.5% | -21.9% | +40.5% | -18.0% | +47.8% | +17.1% | -12.0% | -20.0% | -20.2% | -19.8% |
| 2023 | +9.4% | -8.5% | -16.2% | +4.4% | -16.2% | +1.2% | +6.3% | -17.7% | -19.6% | -23.2% | +33.7% | +52.2% |
| 2022 | -24.4% | +5.2% | +11.3% | -34.2% | +30.7% | -10.6% | +39.9% | +1.0% | -16.5% | -18.4% | +44.7% | -26.3% |
| 2021 | -0.2% | -9.7% | -3.4% | -19.0% | -8.7% | +24.7% | -5.0% | -16.5% | -0.6% | +31.1% | -20.2% | -25.5% |
| 2020 | +23.3% | +13.6% | -47.8% | +38.9% | +19.0% | +18.1% | +86.1% | +54.2% | +36.3% | -32.5% | +23.2% | +8.3% |
| 2019 | +22.1% | +16.6% | -9.3% | +8.2% | +3.0% | +19.8% | +1.5% | -19.5% | +8.9% | -6.9% | -10.7% | -0.5% |
| 2018 | +7.3% | +5.7% | +33.5% | +3.2% | +31.2% | +8.7% | +7.5% | -7.2% | -5.2% | -1.4% | +19.5% | -25.7% |
| 2017 | -0.4% | +7.6% | -5.1% | -2.0% | -4.7% | +41.3% | +5.8% | -11.0% | -17.2% | +3.4% | -2.4% | +5.4% |
| 2016 | -19.1% | -41.0% | +15.3% | +21.6% | -19.5% | -6.5% | -12.6% | +17.4% | +3.6% | -17.3% | -2.1% | +4.1% |
| 2015 | -12.7% | -28.5% | -10.3% | +77.0% | ||||||||
| Average | -0.6% | -7.0% | -2.6% | +1.0% | +10.5% | +6.2% | +16.0% | +7.3% | -2.4% | -8.5% | +4.8% | +3.6% |
| % of years up | 45% | 45% | 45% | 55% | 64% | 64% | 73% | 50% | 36% | 27% | 36% | 45% |
| Years observed | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 11 |
Sunrun month by month: the summary
Over 2015-2026, here's what Sunrun (RUN) stock did each month, on average: January -0.6% (up 45% of 11 years), February -7.0% (up 45% of 11 years), March -2.6% (up 45% of 11 years), April +1.0% (up 55% of 11 years), May +10.5% (up 64% of 11 years), June +6.2% (up 64% of 11 years), July +16.0% (up 73% of 11 years), August +7.3% (up 50% of 10 years), September -2.4% (up 36% of 11 years), October -8.5% (up 27% of 11 years), November +4.8% (up 36% of 11 years), December +3.6% (up 45% of 11 years). In other words, RUN historically rose in April, May, June, July, August, November, December, and fell in January, February, March, September, October.
Does Sunrun really go up in July?
Over 2015-2026, July is Sunrun's strongest month: +16.0% on average, positive in 8 of 11 years. At the other end, October shows -8.5%. 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 Sunrun stock go up or down in August?
Over 10 years, RUN rose +7.3% on average in August, finishing the month up 5 times out of 10 (50%). Median: -3.1%. Results are split year to year — there's no clear pattern. ⚠️ 10 years of data is not a prediction.
Does Sunrun stock go up or down in May?
Over 11 years, RUN rose +10.5% on average in May, finishing the month up 7 times out of 11 (64%). Median: +8.7%. Results are split year to year — there's no clear pattern. ⚠️ 11 years of data is not a prediction.
Does Sunrun stock go up or down in February?
Over 11 years, RUN fell -7.0% on average in February, finishing the month up 5 times out of 11 (45%). Median: -8.5%. Results are split year to year — there's no clear pattern. ⚠️ 11 years of data is not a prediction.
Does Sunrun stock go up or down in June?
Over 11 years, RUN rose +6.2% on average in June, finishing the month up 7 times out of 11 (64%). Median: +8.7%. Results are split year to year — there's no clear pattern. ⚠️ 11 years of data is not a prediction.
Does Sunrun stock go up or down in November?
Over 11 years, RUN rose +4.8% on average in November, finishing the month up 4 times out of 11 (36%). Median: -2.4%. Results are split year to year — there's no clear pattern. ⚠️ 11 years of data is not a prediction.
Does Sunrun stock go up or down in December?
Over 11 years, RUN rose +3.6% on average in December, finishing the month up 5 times out of 11 (45%). Median: -0.5%. Results are split year to year — there's no clear pattern. ⚠️ 11 years of data is not a prediction.
What is the best month to buy Sunrun stock?
Historically, July: over the last 12 years, RUN gained +16.0% on average that month and finished up 73% of the time (11 years observed). October is the weakest month (-8.5%). This is not a prediction: 12 years is a small sample, and the past is under no obligation to repeat.
Why does Sunrun stock often rise in July?
July has averaged as its best month over 12 years (+16.0%, up 73% of years). No clearly established recurring seasonal driver explains this month — it's a statistical tendency over 12 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 RUN it's July (+16.0% on average over 12 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 RUN, July is the most consistent month (73% positive years). We also rank all 12 months for the whole market.
Does stock seasonality actually work?
Careful. A month that rose 12 times out of 12 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 RUN's real monthly closing prices from 2015 to 2026 (12 years), source Yahoo Finance. Each cell = the price change over that month. Price performance, excluding dividends. Incomplete months and quote gaps are excluded.