The Wealth Share of Top 0.01% in the USA

0.01% own 11% (Source: See tweet)
0.99% own 29% (Source: Süddeutsche Zeitung 2019-04-19, p. 8, about Morris Pearl)
19% own 50% (Source: SZ…)
80% own 10% (Source: SZ…)

Inequality measures:
  Median: 87.5%
  Gini: 77.2%
  Plato: 79.7% (Pareto: 89.8%/10.2%)
  100%-SOEP: 87.1%
  Hoover: 70.0

This just gives a rough idea.