I also kept 14 percent of the portfolio in cash, wanting to conserve bullets for less turbulent times.

I did not feel it was the time to make big bets, and kept to low-beta stocks in Brazil.

Laminar airflows can have eight times less heating than turbulent ones.

When markets are rallying, cash in the portfolio is a drag on performance, returning about zero.

The maximum share of their portfolio anyone should have in their employer's stock is about 10 percent. When starting out, it's best to keep the position smaller to leave room to grow.

What it means is there is less fuel essentially. Carriers are having to take measures to conserve fuel at airports where they are low and tanker in fuel when serving some destinations on the East Coast.