Hello Trader,
New CNC BUY positions are updated to holdings only after midnight when the database is updated and refreshed.
Similar, The CNC SOLD scrip details are removed from holdings only after midnight.
However, the available QTY are updated realtime on your Holding database.
Any sold CNC QTY will show as a negative balance until the database updates happen overnight.
Now that today is anotherday since your Question, I assume you have seen all these changes happen overnight.