The S&P 500 communication services sector index is a separate measure from XLC, a communication services exchange-traded fund.
XLC’s return reflects the fund’s performance, not necessarily that of every communication services stock.
Investing
The S&P 500 communication services sector index is a separate measure from XLC.

The S&P 500 communication services sector index is a separate measure from XLC, a communication services exchange-traded fund.
XLC’s return reflects the fund’s performance, not necessarily that of every communication services stock.
Glaukos Corp. will move to the MidCap 400, while McGrath RentCorp and Loar Holdings Inc. will join the SmallCap 600.
The historical tally does not say which November periods it includes or how returns were calculated.
The gauge stood at the 17.9th percentile on Oct. 27, up from near zero in June.