The erratic tariff policies implemented by former President Donald Trump have created substantial market volatility, prompting investors to frequently adjust their positions to mitigate risk. This volatility has notably increased trading activity, resulting in substantial profits for major Wall Street banks such as JPMorgan Chase and Goldman Sachs. Reports indicate that some individuals close to the Trump administration engaged in highly profitable trades, raising concerns about potential insider trading. One notable instance involved a trader who turned a $2.5 million bet on SPY call options into $70 million within 60 seconds, just minutes before Trump announced a tariff reprieve. The surge in market fluctuations driven by Trump's tariff decisions has contributed to a $37 billion profit for Wall Street banks, marking their best performance in a decade despite broader economic disruptions and concerns about corruption at high levels.