The Vanguard Information Technology ETF gives investors diversified exposure to tech companies at a cheap price. The ARK Innovation ETF is less diversified and has a much higher expense ratio.

That's what we want our prosthetic hand to achieve. This is new territory for robotics and prosthetics, which haven't fully ...

Technology stocks haven't been immune to this increased volatility, and many of the latest sell-offs have come from the sector. But avoiding tech investments entirely isn't the right move.