The worst performing sector as of midday Friday is the Technology & Communications sector, showing a 0.1% loss. Within the sector, Qorvo Inc (Symbol: QRVO) and Symantec Corp. (Symbol: SYMC) are two of the day's laggards, showing a loss of 11.9% and 8.7%, respectively. Among technology ETFs , one ETF following the sector is the Technology Select Sector SPDR ETF (Symbol: XLK), which is up 0.3% on the day, and up 9.85% year-to-date. Qorvo Inc, meanwhile, is down 1.75% year-to-date, and Symantec Corp. is up 31.10% year-to-date. Combined, QRVO and SYMC make up approximately 0.5% of the underlying holdings of XLK.

The next worst performing sector is the Energy sector, not showing much of a gain. Among large Energy stocks, Murphy Oil Corp (Symbol: MUR) and Marathon Oil Corp. (Symbol: MRO) are the most notable, showing a loss of 3.8% and 2.7%, respectively. One ETF closely tracking Energy stocks is the Energy Select Sector SPDR ETF ( XLE ), which is up 0.2% in midday trading, and up 15.32% on a year-to-date basis. Murphy Oil Corp, meanwhile, is up 20.18% year-to-date, and Marathon Oil Corp. is up 10.56% year-to-date. Combined, MUR and MRO make up approximately 1.4% of the underlying holdings of XLE.

Comparing these stocks and ETFs on a trailing twelve month basis, there is a relative stock price performance chart, with each of the symbols shown in a different color as labelled. Seven sectors are up on the day, while one sector is down.

Relatively, change for every sector has been inevitable for the past few days because of some major shift in the market trade and industry with their respective performances.

These are the following changes for every sector: