Does Cognex (CGNX) stock go up or down depending on the month?
Cognex month by month, year by year
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +7.7% | +40.4% | -9.9% | +13.3% | +18.6% | +10.0% | -9.9% | |||||
| 2025 | +11.3% | -17.8% | -9.1% | -8.5% | +9.8% | +5.8% | +28.5% | +7.8% | +3.1% | -8.6% | -7.9% | -5.6% |
| 2024 | -13.4% | +9.2% | +7.5% | -2.1% | +9.6% | +2.7% | +6.1% | -18.6% | +0.3% | -0.7% | -0.6% | -10.3% |
| 2023 | +16.2% | -13.4% | +4.5% | -3.8% | +15.2% | +1.9% | -2.5% | -13.8% | -9.9% | -15.2% | +4.8% | +10.7% |
| 2022 | -14.5% | +1.7% | +14.2% | -12.3% | -28.4% | -12.2% | +19.9% | -17.4% | -1.6% | +11.5% | +7.7% | -5.4% |
| 2021 | +2.3% | +0.6% | +0.5% | +3.8% | -7.8% | +5.9% | +7.6% | -2.0% | -9.5% | +9.2% | -11.8% | +0.7% |
| 2020 | -9.0% | -12.6% | -5.2% | +30.8% | +2.7% | +5.3% | +12.0% | +3.5% | -5.9% | +1.2% | +14.0% | +6.9% |
| 2019 | +17.7% | +17.4% | -4.8% | -0.8% | -19.5% | +18.2% | -8.3% | +2.4% | +9.0% | +4.8% | -2.5% | +11.7% |
| 2018 | +2.0% | -13.9% | -3.2% | -11.0% | -1.2% | -2.4% | +18.3% | +1.9% | +3.8% | -23.3% | +2.8% | -12.2% |
| 2017 | +6.2% | +13.7% | +9.3% | +1.7% | +7.2% | -7.2% | +12.0% | +14.6% | +1.2% | +11.7% | +12.5% | -11.7% |
| 2016 | -4.6% | +14.8% | +5.3% | -8.8% | +21.2% | +0.1% | +4.8% | +10.2% | +6.2% | -2.4% | +15.7% | +6.6% |
| 2015 | -11.1% | +21.5% | +11.0% | -9.5% | +12.5% | -4.7% | -5.9% | -21.5% | -3.4% | +9.4% | -1.3% | -8.9% |
| 2014 | +3.4% | -4.6% | -10.1% | +1.7% | +4.5% | +6.7% | +6.7% | +2.4% | -4.0% | -1.8% | +2.9% | +1.6% |
| 2013 | +3.9% | +2.3% | -5.8% | +13.1% | +0.7% | +17.4% | +7.2% | +9.9% | -0.2% | +5.5% | +15.8% | |
| Average | +1.1% | +4.3% | +0.9% | -0.8% | +4.1% | +2.2% | +7.6% | -1.8% | -0.1% | -0.3% | +3.2% | -0.0% |
| % of years up | 62% | 64% | 57% | 36% | 71% | 71% | 71% | 62% | 54% | 46% | 62% | 54% |
| Years observed | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Cognex month by month: the summary
Over 2013-2026, here's what Cognex (CGNX) stock did each month, on average: January +1.1% (up 62% of 13 years), February +4.3% (up 64% of 14 years), March +0.9% (up 57% of 14 years), April -0.8% (up 36% of 14 years), May +4.1% (up 71% of 14 years), June +2.2% (up 71% of 14 years), July +7.6% (up 71% of 14 years), August -1.8% (up 62% of 13 years), September -0.1% (up 54% of 13 years), October -0.3% (up 46% of 13 years), November +3.2% (up 62% of 13 years), December -0.0% (up 54% of 13 years). In other words, CGNX historically rose in January, February, March, May, June, July, November, and fell in April, August, September, October, December.
Does Cognex really go up in July?
Over 2013-2026, July is Cognex's strongest month: +7.6% on average, positive in 10 of 14 years. At the other end, August shows -1.8%. 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 Cognex stock go up or down in May?
Over 14 years, CGNX rose +4.1% on average in May, finishing the month up 10 times out of 14 (71%). Median: +8.4%. It's one of its most consistent months. ⚠️ 14 years of data is not a prediction.
Does Cognex stock go up or down in February?
Over 14 years, CGNX rose +4.3% on average in February, finishing the month up 9 times out of 14 (64%). Median: +2.8%. Results are split year to year — there's no clear pattern. ⚠️ 14 years of data is not a prediction.
Does Cognex stock go up or down in November?
Over 13 years, CGNX rose +3.2% on average in November, finishing the month up 8 times out of 13 (62%). Median: +2.9%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Cognex stock go up or down in June?
Over 14 years, CGNX rose +2.2% on average in June, finishing the month up 10 times out of 14 (71%). Median: +2.3%. It's one of its most consistent months. ⚠️ 14 years of data is not a prediction.
Does Cognex stock go up or down in January?
Over 13 years, CGNX rose +1.1% on average in January, finishing the month up 8 times out of 13 (62%). Median: +2.3%. Results are split year to year — there's no clear pattern. ⚠️ 13 years of data is not a prediction.
Does Cognex stock go up or down in March?
Over 14 years, CGNX rose +0.9% on average in March, finishing the month up 8 times out of 14 (57%). Median: +1.4%. 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 Cognex stock?
Historically, July: over the last 14 years, CGNX gained +7.6% on average that month and finished up 71% of the time (14 years observed). August is the weakest month (-1.8%). This is not a prediction: 14 years is a small sample, and the past is under no obligation to repeat.
Why does Cognex stock often rise in July?
July has averaged as its best month over 14 years (+7.6%, 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 CGNX it's July (+7.6% 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 CGNX, May is the most consistent month (71% 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 CGNX'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.