Best Day of the Year to Invest in COF (Capital One)

Based on 33 years of data (19942026), April 7 has historically been the best day to invest in COF. Buying on that date and holding for ≈ 1 month returned an average of +10.34% with a 73% win rate. The weakest day is January 7 (-3.56%).

This page presents historical statistical analysis for educational purposes only. It is not financial advice and should not be interpreted as a recommendation to buy, sell, or hold any security. Past performance does not guarantee future results. Always do your own research and consult a qualified financial advisor before making investment decisions.
Best Day
April 7
+10.34% avg
Worst Day
January 7
-3.56% avg
Holding Window
≈ 1 month
21 trading days
Years Analyzed
33
1994–2026

Seasonal Return by Day of Year for COF

Each point is the average return over the following ≈ 1 month (21 trading days) if you had invested on that calendar date. Cyan = best day, red = worst day.

10 Best Days to Invest in COF

DateAvg Return (≈ 1 month)Win RateSamples
April 7Best+10.34%73%22
April 8+9.80%74%23
April 15+8.85%77%22
April 2+8.49%70%20
April 9+8.10%73%22
October 7+8.05%95%22
April 3+7.94%64%22
April 16+7.60%78%23
March 23+7.34%82%22
April 1+6.91%65%23

Best Day to Invest in COF, Month by Month

The single strongest calendar date within each month. Prefer the broader view? See the best month to invest in COF

Best DateAvg Return (≈ 1 month)Win RateSamples
January 17+3.19%63%19
February 17+4.25%61%18
March 23+7.34%82%22
April 7+10.34%73%22
May 5+4.32%61%23
June 29+4.37%71%21
July 6+2.66%71%21
August 19+3.57%68%22
September 3+3.76%72%18
October 7+8.05%95%22
November 24+6.54%78%18
December 15+6.03%65%23

10 Weakest Days to Invest in COF

DateAvg Return (≈ 1 month)Win RateSamples
January 7Worst-3.56%45%22
July 12-3.47%45%22
January 14-2.90%45%22
February 6-2.73%54%24
February 7-2.66%43%23
February 14-2.65%43%23
August 3-2.42%33%21
January 22-2.27%43%23
September 16-2.22%36%22
January 28-2.19%45%22

From a Single Date to a Full Seasonal Window

This page fixes the holding period at ≈ 1 month. Seasonal Edge finds the optimal entry and exit dates for each seasonal window inside the app:

  • Optimised entry/exit dates — not just a fixed one-month hold
  • Win rate, drawdown & equity curve for every seasonal window
  • Cycle detection — spectral analysis projects rising and declining phases forward
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How to Read This Data

Avg Return is the mean percentage change over the 21 trading days (≈ 1 month) following each calendar date, averaged across the years COF was traded.

Win Rate shows how often that forward month finished positive. A 75% win rate means COFrose over the following month in 3 of every 4 years you invested on that date.

Samples is the number of years that contributed to the date. Calendar dates that fall on weekends or holidays in some years naturally have fewer samples; only dates with enough history are ranked.

Seasonal patterns are historical tendencies, not guarantees. A specific calendar date is a rough proxy for a seasonal window — treat it as one input alongside your own research, not a precise timing signal.

See the Full Seasonal Analysis

Seasonal Edge screens thousands of securities for seasonal patterns with daily precision — exact entry and exit dates, win rates, and historical backtests.

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Frequently Asked Questions

What is the best day of the year to invest in COF?

Based on 33 years of data, April 7 has historically been the best day to invest in COF. Buying on that date and holding for ≈ 1 month returned an average of +10.34% with a 73% win rate.

Does buying on one specific day really matter?

A single calendar date is a proxy for a seasonal window rather than a precise signal. The dates that rank highest tend to cluster around genuinely strong seasonal periods, which is why we also show the best day within each month and link through to the broader best month analysis.

How is this calculated?

For each calendar date we measure the return over the following 21 trading days (≈ 1 month) if you had bought on that date, using daily closing prices from 1994 to 2026, then average across all years. The date with the highest average forward return is the historically best day to invest.

Is this trading or investment advice?

No. This page is historical statistical analysis for educational and informational purposes only. It is not financial, investment, or trading advice and is not a recommendation to buy, sell, or hold COFor any other security. Past performance does not guarantee future results — always do your own research and consult a qualified financial advisor before investing.