Teams get chance to change portfolio in contest.
Retailers see small gains, as well.
Top 2 teams remain in place in Blade School Stock Contest.
Starwood Hotels jumps 5 percent after offer from Marriott International.
Oil closed at $40.20, its highest since early December.
Tech stock gain helps 5th-grade students.
Led by declines in energy companies as the price of crude oil.
Last year’s winner ahead again in Blade’s School Stock Contest.
Key indicator of where the German economy is headed fell for 3rd month.
Excitement builds as 12-week School Stock Contest gets under way.