The market can be a volatile place.

A few years ago, the prices of cannabis stocks got fired up but ended up going up in smoke. Cryptocurrencies have gone from cashing in to cashing out. And GameStop went from "game on" to "game over" within a few short weeks.

Stock prices can shoot to the moon and then come crashing back down to Earth in short periods of time. But it's important to recognize the difference between short-term momentum trading and long-term growth-style investing.

In the latter, investors can methodically identify and invest in disruptive companies who are capitalizing on larger trends. And because they are still unknown or underappreciated in the public markets, early investors can create fortunes by buying-and-holding them over long periods of time.

This growth-style investing approach is exactly what is preferred by 7investing founder and CEO Simon Erickson. In a conversation with Robert Leonard of Millennial Investing, Simon describes his investing process and what it means to be a growth-style investor. He explains the drivers of why stock prices go up (or down) over time, the role of leadership in valuation, and a few landmines investors should always avoid.

He and Robert also compare investing to Texas Hold Em, give a few investing book recommendations, and offer advice for those getting started with investing.

Publicly-traded companies mentioned in this interview include Berkshire Hathaway, Nuance Communications, and Tesla. 7investing's advisors or its guests may have positions in the companies mentioned.

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