Street One Financial submits: The biggest addition to the S&P 500 in terms of dollar value since the year 2000 took place last Friday, as Berkshire Hathaway B class shares (BRK.B) joined the index, weighing in at about 1.3% of the index total now.
Repercussions in the S&P Financials sector, proxied by XLF (SPDR Select Sector Financials), have BRK/B going from not even being a component of the ETF to a weighting of 8.44% literally overnight. Is this good, bad, or indifferent? It’s hard to say really, but one must note that since the rebalance was announced on January 26th, BRK/B has rallied over 13% with the S&P 500 losing over 1% during the same time frame. (Note: Two rebalances in Citigroup (C) occurred in 2009 which drove the stock to the high $4 and eventually even $5 only to quickly retreat back to the $3's, as noted by Michael Johnston of ETF Database here).
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