Jensen Huang Just Lost More Than $6 Billion on His Own Nvidia Shares in One Day. Wall Street Cut Its Targets the Next Morning

Jensen Huang's 811.5 million Nvidia shares lost $6.47 billion on Monday, and Citi and Wells Fargo cut their price targets Tuesday morning. Here is what the first target cuts, three founder-scandal precedents and a 15% exit estimate mean for a retiree whose 3,000 shares are 22% of a $2.4 million portfolio, and what trimming to 10% costs in tax.