Megacap Drag Hides Broad Gains in Communication Services

On Tuesday, October 20, the Communication Services Select Sector SPDR Fund, an exchange-traded fund that tracks the sector under ticker XLC, closed +0.1% at $110.22. The quiet close for the fund masked a sharp internal split across the sector. Market breadth was broadly positive, with 84.2% of the sector's S&P 500 members advancing and the equal-weighted sector recording +1.2%. Yet the cap-weighted sector finished -0.8%, held back by its largest components even as smaller holdings advanced. Companies graded A or B, which historically carry lower risk of large drawdowns than those graded D or E, account for only 22.3% of the fund's graded assets. The divergence unfolded as investors rotated out of megacap growth shares and into healthcare and value sectors, leaving communications heavyweights to absorb selling pressure.

The drag from the largest constituents centered on streaming and digital media. Netflix Inc finished -1.7%, setting the tone for weakness among the sector's megacaps. The streaming platform remained under pressure following workforce reductions announced the prior week, when it eliminated approximately 6% of its staff. Because the cap-weighted sector assigns outsized weight to a handful of internet and entertainment giants, their declines overwhelmed the gains posted across the majority of the roster.

By contrast, smaller entertainment companies showed notable strength, even where our sources show no reported driver behind the gains. Skydance Corporation topped the sector's gainers, finishing +4.3%. Sports and entertainment operator TKO Group Holdings, Inc. followed, closing +3.1%. Those individual rallies lifted the equal-weighted sector well above the cap-weighted index, illustrating that Tuesday's losses were concentrated at the very top of the group.

The sector's cap-weighted retreat stood out against the rest of the market. Across the broader market, 9 of the 11 sectors rose, leaving communication services as one of the few groups in negative territory. While XLC provides low-cost exposure to $22.5 billion in sector assets at an expense ratio of 0.08%, that fee efficiency has done little to shield holders from medium-term losses. The session leaves the fund showing -3.9% over the past month and -6.5% over the past six months.