For example, I'd like to have a chart of the ES up, but when I place my order on the chart to buy or sell, it sends an order to buy or sell SPY instead.
For my trading I basically trade SPY using a chart of the ES. However, I'm unable to place my stops and limits in the DOM because I'm not sure precisely what level SPY corresponds to in the ES, especially in a fast moving market, so I have to basically eyeball it and when the ES breaks through a level I want to sell at, I have to quickly send a market order to sell SPY in the DOM. Lots of slippage this way. It would be nice to just have a line on the ES chart and when price hits it, an order to buy or sell SPY would be sent.
I'd be using Interactive Brokers with chart.
Thanks for any help. -Mark
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