How to compare two or more lists of data?
For example: Comparing stocks held by different mutual funds
I want to identify the stocks which are common in different mutual funds
(MFs) i.e. like
MF X holds
ABC Co. - 500 units
DEF Co. - 300
MOP Co - 600
AAA Co.- 200

MF Y holds
CBA Co. - 500 units
MOP Co. - 900
FED Co - 600
BBB Co.- 200

MF Z holds
ABC Co. - 500 units
NPL Co. - 300
MOP Co - 100
CCC Co.- 200

Like this there are more than 20 MFs holding more than 35 stocks each.

I want to know the common stocks and their units in each for my study

RAJEEV MINOCHA