Ackman accuses Icahn's firm of 'Ponzi'-like scheme; Icahn blames Fed for losses

Ackman questions Icahn Enterprises' high valuation and dividend yields, comparing the firm to Archegos Capital Management.
Hindenburg Research accused Icahn Enterprises of overvaluing assets and relying on a "Ponzi-like" structure to pay dividends.
Icahn Enterprises shares have plunged 50% since Hindenburg's allegations surfaced.
Icahn took out personal loans against his Icahn Enterprises stake, Ackman notes with fascination.
Icahn blamed the Federal Reserve's quantitative easing for his failed investments and massive losses.