Market Overview

S&P 500 ETFs Just Did Something They Haven't Done In A While

S&P 500 ETFs Just Did Something They Haven't Done In A While

Carnage for U.S. equities continued Thursday with the S&P 500 shedding more than 2 percent, a slide that brings the U.S. equity benchmark's one-week loss to nearly 6 percent.

The sudden deterioration in U.S. stocks created a rare bearish technical condition, affecting some of the largest exchange traded funds in the process.

What Happened

Pension Partners Director of Research Charlie Bilello noted on Twitter that the S&P 500 had not closed below its 200-day moving average in 577 days. The index did just that Thursday.

The SPDR S&P 500 ETF (NYSE: SPY), the world's largest ETF by assets, actually slipped 2.2 percent Thursday and is lower by 5.97 percent over the past week. SPY now resides 1.47 percent below its 200-day moving average.

Why It's Important

Technical weakness in the S&P 500 is important for myriad reasons and particularly so in the world of ETFs for at least one simple: the amount of assets allocated to SPY and the two other traditional cap-weighted S&P 500 ETFs is massive.

Entering Thursday's trading session, three of the four largest US-listed ETFs were SPY, the iShares Core S&P 500 ETF (NYSE: IVV) and the Vanguard S&P 500 ETF (NYSE: VOO). Those are three of the four U.S.-listed ETFs with $100 billion ore more in assets under management. In order, SPY, IVV and VOO combine for a staggering $531.36 billion in assets under management.

The technology sector's struggles this week are a major reason why the S&P 500 and the aforementioned ETFs are sliding. As of Oct. 10, the index had a technology weight of 20.27 percent, or 502 basis points more than its second-largest sector exposure, which is health care.

What's Next

Flows data suggest investors are buying the S&P 500 dip. For the week ended Oct. 10, SPY, VOO and IVV are three of the top six asset-gathering ETFs. Earnings reports could determine the S&P 500's near-term fate. From Oct. 15 through Nov. 2, more than 77 percent of S&P 500 deliver third-quarter earnings reports.

Disclosure: The author owns shares of VOO.

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