On Sat, Aug 7, 2021 at 06:13 AM, rotces wrote:
When I use the TWS software, currently I have no market data subscriptions but I can still click the snapshot button to get a snapshot for a stock. However, it doesn't work using the API.
I contacted IB in the past when I had the same experience. They confirmed that this is "expected behavior". Even without a subscription can you see data for a stock in TWS. But you can't get the same data via the API. You need the appropriate market data subscription for the API to work.