Do they have different meanings? Business investment is up. (‘Investing’ wouldn’t sound wrong, but less professional) Investing in NFTs was all the rage. (Lots of people were making these investments) My investments in NFTs are worthless now.

Investing is a VERB in present continuous. Infinitive form is - to invest Investment is a NOUN. For example: I’m investing a lot of time and money in my education My investment in education has opened many doors for my career

Thank yuo Victoria, Very useful

Although “investing” can be used as a gerund. It refers to the process of investing For example : Investing in stocks can be risky (Here “investing” refers to the Process of putting money) Investing takes time and knowledge