Germany's DAX 30 index opened up 62.36 points, or 0.26%, at 23,598.83 points on Tuesday, September 23.
The UK's FTSE 100 index opened up 14.57 points, or 0.16%, at 9,241.25 points on Tuesday, September 23.
France's CAC 40 index opened up 30.30 points, or 0.39%, at 7,860.41 points on Tuesday, September 23.
The Stoxx 50 index opened up 8.00 points, or 0.15%, at 5,450.05 points on Tuesday, September 23.
The Spanish IBEX 35 index opened up 44.20 points, or 0.29%, at 15,139.70 points on Tuesday, September 23.
The Italian FTSE MIB index opened up 51.82 points, or 0.12%, at 42,475.00 points on Tuesday, September 23.