Abstract: A stabilizer for holding sport cards, or other cards, in a vertical to an angled position so that the user can easily view a group of cards by flipping through them. The stabilizer is preferably made from card stock which, in an unfolded position, forms an elongated, rectangular sheet. When the card is properly folded, it forms an angled card rest, and a tab in one portion of the card fits into a slot in the other portion of the card.