How Will Cooper Companies Stock React To Its Upcoming Earnings

Cooper Companies (NASDAQ:COO) is set to report its earnings on Wednesday, September 9, 2026. The company has $14 billion in current market capitalization. Revenue over the last twelve months was $4.2 billion, and it was operationally profitable with $498 million in operating profits and net income of $236 million. While a lot will depend on how results stack up against consensus and expectations, understanding historical patterns might just turn the odds in your favor if you are an event-driven trader.

There are two ways to do that: understand the historical odds and position yourself prior to the earnings release, or look at the correlation between immediate and medium-term returns post earnings and position yourself accordingly after the earnings are released.

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Cooper Companies's Historical Odds Of Positive Post-Earnings Return

Some observations on one-day (1D) post-earnings returns:

• There are 19 earnings data points recorded over the last five years, with 9 positive and 10 negative one-day (1D) returns observed. In summary, positive 1D returns were seen about 47% of the time.
• However, this percentage decreases to 45% if we consider data for the last 3 years instead of 5.
• Median of the 9 positive returns = 5.7%, and median of the 10 negative returns = -4.5%

Additional data for observed 5-Day (5D) and 21-Day (21D) returns post earnings are summarized along with the statistics in the table below.

Correlation Between 1D, 5D and 21D Historical Returns

A potential strategy is to examine the correlation between short-term and medium-term returns post-earnings to identify actionable follow-through or reversal patterns. However, this approach relies on a strong, statistically meaningful relationship. In Cooper Companies' case, the highest 5-year correlation (1D vs. 5D) is only -14.4%-far too weak to warrant fading or following the initial 1D move: if the 1D post-earnings return is positive, a trader can position themselves in the opposite direction over the following 5D window.

Here is some correlation data based on a 5-year and a 3-year (more recent) history. Note that these correlations are between subsequent windows, not the cumulative columns above: 1D_5D is the correlation between the 1D post-earnings return and the subsequent return from day 1 through day 5, 1D_21D is between the 1D return and the subsequent return from day 1 through day 21, and 5D_21D is between the 5D return and the subsequent return from day 5 through day 21.

Is There Any Correlation With Peer Earnings?

Sometimes, peer performance can have an influence on post-earnings stock reaction. Some of that pricing-in may even begin before the earnings are announced. Here is some historical data on the past post-earnings performance of Cooper Companies stock compared with the stock performance of MDT, a peer that reported earnings just before Cooper Companies. For fair comparison, peer stock returns also represent post-earnings one-day (1D) returns.

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