Donald Trump stated in an interview with Fox News that Americans' 401(k) retirement accounts have "doubled and even tripled," reaching all-time highs, and claimed that the US economy is firing on all cylinders, entering a "golden age." He pointed out that the US stock market has hit record highs, employment rates have risen, investment in new factories has surged, and the S&P 500 index has increased by approximately 29% since the beginning of his second term. However, the article notes that Donald Trump did not specifically explain the meaning of "doubled and even tripled," and cited Fidelity data showing that the average 401(k) balance grew by 11% to $141,000 from Q1 2025 to Q1 2026, while Vanguard reported a 13% increase to $167,970 in 2025. These increases did not reach the "doubled or tripled" level.