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Hi rgiu70,
not sure if this is what you are looking for, but if you have a table and just want to get the open, high, low, close by sym you can run the following query
</p><p>q)t:([] sym:20?AAPLMSFTC; price:20?100.0)q)t
sym price
————-
MSFT 39.27524
MSFT 51.70911
C 51.59796
AAPL 40.66642
MSFT 17.80839
C 30.17723
MSFT 78.5033
C 53.47096
MSFT 71.11716
AAPL 41.1597
AAPL 49.31835
MSFT 57.85203
C 8.388858
MSFT 19.59907
C 37.5638
AAPL 61.37452
AAPL 52.94808
C 69.16099
AAPL 22.96615
MSFT 69.19531
q)exec
ohlc!(first;max;min;last)@\:price by sym from t| o h l c
—-| ———————————–
AAPL| 40.66642 61.37452 22.96615 22.96615
C | 51.59796 69.16099 8.388858 69.16099
MSFT| 39.27524 78.5033 17.80839 69.19531
q)
`
