When Kendall is in the restaurant with Rava, a diner in the background (out-of-focus) returns to their seat twice.
They say the massive $3.25 billion dollar bank loan is secured against WayStar RoyCo stock, so the bank is entitled to a repayment in full as soon as the stock price drops below a certain limit. However, any bank big enough to give such a loan is also a major player in the stock market and investment banking, so they could just make the stock drop if they wanted to, especially in such a crisis as depicted.