Top 20 US Stock Market Transactions: Tesla Surges 29% This Week, Musk May Join Trump Administration. Tesla, ranked first in US stock market transactions on Friday, closed up 8.19%, with a transaction volume of $63.929 billion, bringing its market value back to over $1 trillion. The share capital has risen by 29% cumulatively this week. According to media reports on Friday, Tesla CEO Elon Musk attended a phone call between US President elect Trump and Ukrainian President Zelensky. According to reports, Musk stated over the phone that he will continue to provide Ukraine with access to the Starlink communication system. Analysis suggests that Musk's involvement may indicate that he will play an important role in the upcoming Trump administration.