Jim Cramer has expressed concerns about the stock market showing signs of "excess" due to significant gains in various sectors. He advises investors who have seen substantial price increases, especially if their investments have doubled or tripled in a short period, to consider taking profits.

Cramer notes that while it is common for markets to rise after a Republican election victory, the current surge includes many lesser-known stocks beyond the well-known "Magnificent Seven." He identifies 66 sizable stocks that have achieved over 50% returns in November, questioning the sustainability of these gains.

Cramer suggests not selling entire positions in high-performing stocks but securing profits, as rapid increases can be unsustainable and lead to losses if not managed carefully. He highlights technology, artificial intelligence, fintech, space, alternative energy, and stocks related to anticipated policies from President-elect Donald Trump as sectors driving this growth.