Ashby School became an Academy on 1 October 2012.
This means that the school has greater freedom to make decisions about its curriculum, finances and other issues.
Academies are state-funded, independent schools, committed to providing a first class education.
Headteacher Eddie Green said: "Ashby School was an extremely successful 14 - 19 comprehensive and has continued to be an extremely successful Academy.
"As an Academy, we can now make decisions that we know will generate the best results and the most rewarding educational experiences for the students of Ashby School."
Funding comes directly from central government, rather than through the local authority, giving the school autonomy over its finances.