INTERSECT Returns the row intersection of two tables, retaining duplicates.
Syntax
INTERSECT(table_expression1, table_expression2)
Parameters
Table_expression – Any DAX expression that returns a table.
Return Value
A table that contains all the rows in table_expression1 that are also in table_expression2
Reference Data
https://docs.microsoft.com/en-us/dax/dax-function-reference