The simple answer is there are no definitive signs of a pending stock-market crash, otherwise everybody would sell up and leave the market! This may sound a little obvious but it is true. If you look back in history the voices suggesting a pending stock-market crash will more often than not be drowned out by those who kept on pushing prices higher and higher. This is best described as the ultimate bull market. More... https://www.bullmarketboard.com/blog/2019/06/25/what-are-the-signs-of-a-pending-stock-market-crash/
Simple - there are none as such! One tip, when every analysts and "expert" turns positive, that is the time to start worrying. Those who remained bearish through the rise are eventually dragged into the bull run by customer and peer pressure.
History shows very few of any signs of an impending stock-market crash. The signs may have been there for weeks and months before but the actual crash can be prompted by many different issues.
