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Can I find a list of symbols so that I can find, for example, $WHEAT and $SUGAR instead of ETFs WEAT and SGG? looking for weekly data. Thanks

Thanks all. Helpful

In the IB API to get historical data we use reqHistoricalData then the historicalData function is called to receive the bars/candles. if I requested 100 bars of data, is historicalData called 100 times? Also, if I have update turned on, historicalDataUpdate is called, perhaps 100 times...

Very helpful. Thanks

Thanks guys. I’ll conclude there’s no hard and fast rule, based on the two responses.

I’m about to start trading with IB through the python API. It will check on prices every half hour and possibly trade, depending on situations. should I open a connection to TWS once and close at end of the day, or should I open and close as needed, likely every 1/2 hour? thanks