"The Paper Hand"

This is the opposite of Diamond Hand. This person has a very low risk tolerance. As soon as they see their portfolio drop 5% (even a little red), their heart rate speeds up and they immediately press the "Sell All" button out of panic. Ironically, they often sell right before the price bounces back up. They only sleep soundly if they are holding cash (Fiat), and always regret their decision when they see the market turn green again.