Mattel Inc. was this week’s biggest local gainer. Shares rose 3 percent, closing at $26.25 upon news that the company might acquire Fuhu Inc., a children’s technology company.

Aerovironment, an energy technology company, was another local gainer this week. Shares rose 14 percent to close at $28.64.

This week’s biggest loser among stocks trading above $1 was Walt Disney Co. Shares fell 5 percent to close at $108.04.