On Interactive Broker's TWS API manual, there are several historical data types to choose from.

Which IB TWS data type's Close value corresponds to

  1. Close
  2. Adjusted Close

in Yahoo Finance?


1 Answer 1


On the page you link:

TRADES data is adjusted for splits, but not dividends

ADJUSTED_LAST data is adjusted for splits and dividends. Requires TWS 967+.

So to get adjusted close, request ADJUSTED_LAST and use the Close field. To get the unadjusted close, request TRADES and use the Close field.


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