The top 1% of Americans have seen their wealth soar to a record $44.6 trillion, with stock holdings being the primary driver of this surge. What Happened: The wealth of the top 1% of the U.S. population, defined by the Federal Reserve as those with assets exceeding $11 million, increased by $2 trillion in the fourth quarter of 2023, reported CNBC on Monday. This growth was primarily due to a year-end stock rally that boosted their portfolios. The value of corporate equities and mutual fund shares held by the top 1% surged to $19.7 trillion from $17.65 trillion in the previous quarter. While th…