Investing in ETFs is popular for its passivity. But sometimes one may want to bet on sectors that hold promising future potential. We'll look at 3 of those here today.

First Trust Cloud Computing ETF $SKYY
The First Trust Cloud Computing ETF is a fund that focuses on cloud-related business services.
-Cloud computing - the proliferation of software, services and storage over the internet. It allows customers to access information and applications from virtual resources.
-Cloud security - securing cloud services against viruses, phishing attacks and other threats. Security is key to customer confidence in the cloud.
-Cloud infrastructure - the basis for operating and delivering cloud services such as data storage, servers, networks, application platforms, etc.
-Cloud management - tools for managing, monitoring and optimizing the cloud and cloud services.
- Cloud-related services such as cloud hosting and cloud outsourcing.

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Bet on dividends and established companies instead :)