Robinhood ($HOOD) saw over $1.4 billion in transfers, primarily from Tesla ($TSLA) shareholders, during a recent match promotion, with an average account size exceeding $500,000. This indicates Robinhood's ($HOOD) growing appeal to high-net-worth investors, diversifying its user base beyond smaller retail accounts. This trend could positively impact Robinhood's ($HOOD) revenue and asset under management growth in the near term.