Is there an app that shows you how much of each individual stocks you own in an ETF.

For a simple hypothetical example: if I am 50% VTI and 50% QQQ what percent of my holdings are in apple?

12% of QQQ is apple and 6% of VTI is apple.

Some simple math gives me roughly 9%.

However, I’m wondering if there is an app that can calculate your top holdings based off of a imputing multiple ETFs/individual stocks etc.