Wall Street is braced for a US election that could significantly affect the direction of policy. Trading desks will be on duty at night, with teams in Hong Kong and Singapore also arranged to help. "Trump trades" that are long on the dollar and short on bonds may increase their positions, or quickly position squaring. Some institutions have taken measures in response to the election that have never been seen before. A London-based hedge fund has prepared computer models of "world shock" for this moment. Some banks are bracing for the risk of social unrest, however remote it may be, if it comes true, it will shake the financial marekt of the United States, the world and the world. JPMorgan Chase plans to increase staffing in Europe and Asia to deal with overnight trading and volatility; Goldman Sachs expects hundreds of sales and trading teams to work late into the night in New York, with many more ready to go online from home. American employees across the industry are bracing themselves for an all-nighter. As Harris and Trump make their final dash to canvass voters, American society is polarized and the election is so tight, and the financial industry is sandplaying out a possible shock. For now, the market thinks Trump will win. Stocks are up, so are the dollar and cryptocurrencies. Bond yields are climbing. If Harris ultimately wins, the "Trump trade" could quickly reverse, causing big market swings overnight.