Markets fell Monday. September 14 brought losses. AI stocks dropped. Tech leaders wanted to curb the AI frenzy. Chip and memory stocks also declined. A Black Swan investor sided with Michael Burry. He warned of a euphoric rally before a crash.

Bitcoin came under pressure. An analyst said a S&P 500 pullback could drive Bitcoin toward $10,000. Another investor called Bitcoin a one-trick pony. He said its collapse could cause big damage. Transat A.T. shares fell 5.97 percent. Fuel costs stood behind the decline. Warren Buffett urged caution when others are greedy.