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Can a stock exchange company actually go bust?
A stock exchange is a marketplace where people can bring their goods [shares] to be traded. There are certain rules. Stock Exchange does not own any shares of the companies that are trading in.  The list of who owns with stock is with the registrar of each company. The electronic shares are held by a Financial Institution [Securities Depository]. So even if the exchange itself goes down, you still hold the same shares as you had before it went down. One would now have to find ways to trade these shares ... possibly via other stock exchange. This leaves the question of inflight transactions, which again would be recorded and available. Think of it similar to eBay. What happens when eBay goes bankrupt? Nothing much, all the seller still have their goods with them. All the buyers who had purchased good before have it when them ... so the question remains on inflight goods where the buyer has paid the seller and not yet received shipments ...