Meme stocks like AMC and GameStop are once again getting a lot of attention. Though they can skyrocket in the short term, their volatility is a concern for investors looking for steady outperformance. But for investors who want to ride the wave of what's trending, there's an ETF for that – the recently launched FOMO ETF. Matthew Tuttle, CEO and CIO of Tuttle Capital Management, explains how investors can use the "fear of missing out" to their advantage.