Goodbye Telecommunications Services Sector and Hello Communications Services Sector!

July 13, 2018

On November 15, 2017, S&P Dow Jones Indices, a leading provider of financial market indices, and MSCI Inc., a leading provider of research-based indices and analytics, conducted their annual review of the Global Industry Classification Standard (GICS). As a result, the pair decided to broaden and rename the Telecommunications Services sector to the Communications Services sector. The thought process is that over the past several years consumers and businesses have fundamentally transformed the way in which they communicate and access content.

In some ways, this trend started when Comcast, a cable company, announced its intention to purchase a stake of NBC Universal, a television network and content provider, in 2007. The latest example of the convergence between communications and media is the on-going asset fight between Fox, Comcast, and Disney for Sky PLC, a European satellite broadcaster. Moving away from traditional communications and media companies, firms like Alphabet through its Google search engine and YouTube, Facebook through its ever-expanding social media platform, and Netflix through its direct-to-consumer streaming content, have changed the way the world communicates and accesses content. The lines have officially blurred and S&P along with MSCI decided to take action.

What impact will this have on investors?

On September 21, 2018, the Telecommunications Services sector, the smallest sector at a 2% weight in the S&P 500 will quintuple in size to become the fourth largest sector in the index at the expense of the Information Technology and Consumer Discretionary sectors. This change is much larger than GICS’s creation of the Real Estate sector in 2016, which affected approximately 3% of the index’s market cap. Sleepy firms like AT&T, Verizon and CenturyLink will be grouped in the same sector as Alphabet, Facebook, and Netflix, just to name a few. Most notably, a sector classified as 100% value will be primarily growth-oriented.

The composition change is shown in the above chart; the formerly dominant names of AT&T, Verizon, and CenturyLink of the Telecom sector (shown in green) will now occupy a much smaller percentage of the new Communications Services sector, as shown by the considerably smaller blue boxes in the graph.

Luckily, most investment managers select stocks based on their investment merits and not their GICS sector classification. An investment manager that owns Alphabet (Google), which is currently classified as an Information Technology stock, on September 21st will continue to hold it on September 22nd. Much like the creation of the Real Estate sector in 2016, there is no action needed on the part of investors. We will continue to monitor new developments as S&P and MSCI finalize the change over the coming months.

Print PDF

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.

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

Four-line chart showing weight in Bloomberg Aggregate U.S. Bond Index for Treasuries, Government-Related, Corporate, and Securitized sub-indices, 12/31/1999 through 3/31/2026. For date range shown, Treasuries started at 31.7% and end at 45.9%. Government-Related start at 11.4% and end at 4.3%. Corporates start at 20.9% and end at 23.9%. Securitized start at 36.0% and end at 25.9%. For full dataset, please contact marquettemarketing@marquetteassociates.com.

05.18.2026

The “Magnificent One”

Over the last few years, equity markets have been defined by a group of stocks often referred to as the…

Combination column and line chart showing increase in non-renewables and renewables in net installed capacity (GW) in columns and share of new electricity generating capacity by renewables (line) annually since 2005. Renewables ave seen a marked increase in recent years (183.95GW in 2019 to 691.94GW in 2025). Renewable Share was at 86% for 2025. For full dataset, please contact marquettemarketing@marquetteassociates.com.

05.11.2026

A Renewed Focus on Renewables

In addition to the humanitarian toll of the conflict in Iran, the world is currently confronting the impact that trade…

05.07.2026

The Fed Tackles Succession Planning

The leadership structure of the Federal Reserve is intentionally designed to promote continuity, independence, and institutional stability across political cycles….

Stacked column chart showing Weight in S&P 500 Index in 1985, 1995, 2005, 2015, and 2025 for top 10 companies at that time, with companies stacked for each year by weight. From 1985-2015, top 10 weight ranged from 17.6% to 21.1%, but 2025's weight was 40.6%. Company makeup changes over time, with no companies from 1985/1995 categories in 2025. For full dataset, please contact marquettemarketing@marquetteassociates.com.

05.04.2026

This Too Shall Reconstitute

Rooted in medieval Persian Sufi thought, the adage “this too shall pass” speaks to the fleeting and impermanent nature of…

Three-line chart comparing cumulative returns for MSCI EM Latin America Index, MSCI EAFE Index, and S&P 500 Index, Jan 1, 2026 through April 24, 2026. Dashed line at February 28 demarcates U.S. strikes on Iran. While all three indices dipped after war began, Latin America Index was higher to begin with and remains high. Most recent data point (4/24) for Latin America is 20.36%, EAFE is 5.7%, and S&P 500 is 5.06%. For full dataset, please email marquettemarketing@marquetteassociates.com.

04.27.2026

Let’s Hear It for Latin America

Latin American equity markets have shown remarkable strength in 2026. After a strong start to the year, the MSCI Emerging…

04.23.2026

We’ve Seen This Before

Diversify. Rebalance. Stay invested. Every one of these letters has concluded with that same advice in some shape or form….

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 >