Balancing your portfolio to include the top 25 or so best performing companies of the index
Therefore ETFs that track that - eg $XLG is the s&p top 50. Unsurprisingly, consistently beats the s&p500. Same for $QQQ - in this case the skew is for more tech stocks (which were the best asset class in a decade)
Therefore ETFs that track that - eg $XLG is the s&p top 50. Unsurprisingly, consistently beats the s&p500. Same for $QQQ - in this case the skew is for more tech stocks (which were the best asset class in a decade)