Yesterday we published our monthly S&P 500 Sector Weightings report for clients.  The report provides a detailed historical look at S&P 500 sector weightings, and it’s something clients find very useful.  Below we show current S&P 500 sector weightings.  Anything stand out?

Yes, at 25.78%, the Technology sector now makes up more than a quarter of the S&P 500.  That’s a bigger slice of the pie than the smallest six sectors combined.

The Financial sector is the second largest at 14.65%, followed by Health Care at 13.71%, and then Consumer Discretionary at 12.86%.  There was a time relatively recently when Energy, Consumer Staples, and Industrials all had weightings above 10%, but at this point they’re all in the single digits.

Getting back to the Technology sector, below is a look at its historical weight in the S&P 500.  At 25.78%, Tech’s weighting was only higher during a 10-month window from December 1999 to September 2000.

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