Index funds

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WB buys in Q4

SPDR S&P 500

The guru purchased 39,400 units of the exchange-traded fund

Vanguard S&P 500

The renowned investor bought 43,000 units of the ETF,

WB bought S&P index fund :scream: SPY and VOO

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Indexing still has a role in your portfolio, Cramer said. In particular, a low-cost index fund that mirrors the S&P 500 should be the “bedrock of your retirement account,” he explained.

The overall S&P 500 index works because the S&P 500 is itself an actively managed fund, Cramer said.

By index fund, I have always meant S&P index :grinning:

This is another reason to own smaller companies that aren’t in SPY. They’ll often be in other indexes, but the volume is tiny. Most of the volume is individual shares not ETF trading.

“Flows into funds tracking the S&P 500 index raise disproportionately the prices of large-capitalization stocks in the index relative to the prices of the index’s small stocks,” authors Hao Jiang, Dimitri Vayanos and Lu Zheng wrote in the paper.

They found that so-called noise traders tend to push up the price of fashionably big companies as they enter the S&P 500. As a result, those companies arrive with higher index weights which in turn trigger more buying from capitalization-weighted funds tracking the gauge.