It is amazing how market volatility affects investors short-term performance depending on what you own.
The Trump Rally since his election has been tremendous, but February and March of 2018 volatility entered and the markets gave a bit back. Recovery from that has been a bit bouncy and not broad. From January 26, 2018, through June 19, 2018, at 2:17 PM, the S&P500 index was still down -3.9%, and the DOW -7.2%. At the same time, the Nasdaq was up +2.7% and the Russell 2000 was up +5.1%!
I just wanted to point out that the Indexes representing different market caps move in lockstep over the long run. However, which market cap, or particular index performs better in the intermediate term varies as you can see in the image below:
Most importantly, continue to invest in the markets.