Markets slid Monday. September 14 saw declines. AI stocks retreated. Tech leaders urged slowing reckless development. Chip and memory stocks also declined. A Black Swan investor sided with Michael Burry. He said euphoria would come before a collapse.

Bitcoin came under pressure. An analyst said a S&P 500 pullback could push Bitcoin to $10,000. Another investor called Bitcoin a single-use bet. He said its collapse could cause big damage. Transat A.T. shares declined 5.97 percent. Fuel costs were the main problem. Warren Buffett urged caution when others are greedy.