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How to find the smallest transaction fees and commissions available and reduce trading overhead?
The lowest cost way to trade on an exchange is to trade directly on the exchange. I can't speak to the LSE, but in the US, there is a mandated firewall between the individual and the exchange, the broker; therefore, in the US, one would have to start a business and become a broker. If that process is too costly, the broker or trade platform that permits individuals to trade with the lowest commissions is the next lowest.