The technical analysis team at HSBC is warning recent stock market moves look eerily similar to just before 1987’s ‘Black Monday’, which saw the largest one-day market crash in history.On October 19, 1987, the Dow Jones Industrial Average which comprises the 30 large US publicly traded companies, lost 22.6 percent of its value. In a note to clients released Wednesday, Murray Gunn, the head of technical analysis for HSBC, said he was on red alert for an imminent sell-off in stocks in the light of the price action over the past few weeks. "With the US stock market selling off aggressively on October 11, we now issue a RED ALERT. The possibility of a severe fall in the stock market is now very high," Gunn wrote. Other financial firms have also issued red alert warnings. Citigroup told clients that investors aren't adequately hedging US election risk. The managing director at Citi Thomas Fitzpatrick has also pointed at the market's similarities to the 1987 crash. The volatility has continued to rise since the end of the summer and the recent sell-off was seen across many areas of the market, and not just selected groups, according to the HSBC analyst. Last month, Gunn warned stocks were under an "orange alert." Following the Dow Jones’ 200-point decline on Tuesday, Gunn threw up the ultimate warning signal, saying the drop is here. The key levels that HSBC team is watching are 17,992 in the Dow Jones Industrial Average and 2,116 in the S&P 500. Now as we know so far in the last month the stock market in the DJIA alone has been frozen at the 18,100-18,200 level, if you have been paying attention to the markets for the last four weeks about. Now if this warning is accurate and this crash happens around the 17,992 level, then this would mean a one day twenty-two percent decrease in the DJIA alone would loose 3,960 points in one day. This market drop of 3,960 points would very likely lead to banks being closed in America and ATM's across the country shut down...Maybe even perhaps cards not working when you need groceries. If a bank is warning about this, this is likely being planned and in the works...It will possibly hit before election day or on election day itself. So America get ready for one of the biggest bankster thefts in American history.