Buy or Sell Amcor Stock Ahead of Earnings?

Amcor (AMCR), the $22 billion global packaging firm, is scheduled to report earnings on August 14, 2025, following a year with $13 billion in revenue and $807 million in net income. Historical analysis of post-earnings stock performance reveals a challenging trend for immediate positive returns, with one-day gains observed in only 45% of instances over five years (dropping to 33% over three years), and median movements of +1.8% for positive days versus -2.2% for negative days. This data provides critical insights for event-driven traders assessing potential short-term price action around the announcement.

Analysis

Amcor (AMCR), a packaging firm with a $22 billion market capitalization, is approaching its earnings announcement on August 14, 2025, on the back of a profitable year with $13 billion in revenue and $807 million in net income. An analysis of its historical post-earnings stock performance reveals a challenging environment for short-term traders. Over the past five years, the stock has registered a positive one-day return following earnings in only 45% of instances. This trend has deteriorated more recently, with the frequency of positive one-day returns dropping to 33% over the last three years. Furthermore, the magnitude of share price movements shows a negative skew; the median of positive one-day returns was 1.8%, whereas the median of negative one-day returns was a more significant -2.2%. While the article suggests that traders could potentially use the correlation between short-term and medium-term returns to guide post-announcement positioning, it does not provide the specific correlation data to validate this strategy.

Key Decisions for Investors

• Given that historical data shows a less than 50% probability of a positive one-day return and a larger median loss on negative days, investors should exercise caution when considering pre-earnings long positions.
• Traders might consider using the initial one-day price reaction as an indicator for subsequent positioning, but should note that the effectiveness of this approach relies on return correlations which are not detailed in the provided information.
• Long-term investors should focus on the fundamental data from the upcoming report, such as revenue, profit margins, and forward guidance, rather than the historically unfavorable short-term price action.