The Apple Effect?

September 11, 2015

On Wednesday, September 9th, Apple announced the details on the latest iteration of its flagship product – the iPhone. The iPhone 6S and 6SPlus were the ninth major iPhone announcements since the iPhone 1 was first unveiled to the world on June 29th, 2007 (excluding new storage space and color variations of the same model). The announcement events are widely covered by the media and fans of one of the most innovative companies of the 21st Century.

This week’s chart examines the change in Apple’s stock price from the announcement through the following six days and comparing that change to the return of the S&P 500 over the same time periods. On average, Apple has outperformed the index by 2.62% over the past eight announcement dates.

The importance of this announcement can be seen in the S&P 500 holdings, of which Apple is the largest contributor with a 3.71% weight. While it cannot be said with utmost certainty that Apple will outperform the market with its latest product announcement, it is safe to assume that these products will continue to be a major revenue source for the company, drive movements in the stock price, and therefore have a significant influence on the return of the index.

The opinions expressed herein are those of Marquette Associates, Inc. (“Marquette”), and are subject to change without notice. This material is not financial advice or an offer to purchase or sell any product. Marquette reserves the right to modify its current investment strategies and techniques based on changing market dynamics or client needs.

Related Content


The “Fix” Is In!

The strength of the U.S. economy over the last several quarters has surprised many investors, as consensus expectations from the…


The Emergence of Argentinian Equities

Argentina has faced myriad economic headwinds in recent time, including hyperinflation, currency-related difficulties, and a series of defaults on its…


Is Bitcoin Fairly Valued?

Despite mixed performance to start 2024, bitcoin finished the first quarter up roughly 68%. Buoyed by a broad weakening of…


1Q 2024 Market Insights Video

This video is a recording of a live webinar held April 25 by Marquette’s research team analyzing the…


Mind the Gap

Any ride on the London Tube reminds riders to mind the gap: Beware the space between train car and platform…


Japan: This Year’s Vacation Recommendation

Foreign investment isn’t the only thing streaming into Japan. In 2023, the number of travelers to the country surpassed long-term…

More articles

Subscribe to Research Email Alerts

Research Email Alert Subscription

Research alerts keep you updated on our latest research publications. Simply enter your contact information, choose the research alerts you would like to receive and click Subscribe. Alerts will be sent as research is published.

We respect your privacy. We will never share or sell your information.

Thank You

We appreciate your interest in Marquette Associates.

If you have questions or need further information, please contact us directly and we will respond to your inquiry within 24 hours.

Contact Us >