Buy DAS, the trading software company. IB TWS is great for swing, position trading and investing. For daytrading I find it difficult to deal with as its not as fast and dynamic like DAS, the loss of flexbility and speed can cost me a lot so I pay for DAS for IB. Java is not known for its speed but daytraders are But if DAS were to be offered to directly IB clients, then IB would be just unbeatable as a daytrading broker. Right now traders have to pay $150 a month or so in order to get it, I bet a lot of people end up not paying for it because they dont want to deal with the costs and they might be end up using other retail brokers with more dynamic platforms (perhaps TDAmeritrade or Etrade). Furthermore a lot of smaller brokers have DAS as their main trading platform offered to clients (for a cost), by buying them you would deprive them off that opportunity. So you would hurt the competition. IB is a $21B company with $6B in net current assets in the balance sheet, it would be a drop in the bucket for your company to buy them.