Wall St. Treads Water

gained 7.67 points to 8121.11. The sank 5.97 to 1563.53. Elsewhere: The dollar rose against the mark and the yen as doubts persisted about the future of the unified European currency.

The Dow Jones Industrial Average gained 7.67 points to 8121.11. The Nasdaq Composite Index sank 5.97 to 1563.53. Elsewhere: The dollar rose against the mark and the yen as doubts persisted about the future of the unified European currency.