According to Bank of America, if the government closes next week, the market could be due to some choppiness. The results could vary widely, but banks found that the S&P 500 had an average loss of 5% before the shutdown and between the following week, based on data dating back to 1990. Here is a breakdown of BOFA’s market performance regarding government closures: Congress has yet to reach a contract to fund the government before the deadline on Wednesday. President Donald Trump also told federal agencies to prepare to fire large-scale shootings if a lawmaker’s agreement is not made in time. Mark Cabana, a Rate Strategist at Bank of America, told clients he cares that the market is usually far less about shutdowns than potential violations of the debt cap. However, some Wall Street people have warned that the current economic background could have a more impact on the shutdown. (Learn the best 2026 strategies from within NYSE with Josh Brown and others on CNBC Pro Live. Tickets and info here.)