Buffalo stocks fell for the week, led by Computer Task Group and Astronics Corp.
The Buffalo Bloomberg Stock Index fell 0.33 points, or 0.2 percent, to 221.57. Twenty-nine stocks fell, 25 rose and one was unchanged. The index has risen 8.6 percent in the past year.
Computer Task Group, which provides computer services, led the index's decliners. The stock dropped 43 cents, or 9.9 percent, to $3.56. Astronics, which makes aircraft lighting, also fell, dropping 39 cents, or 7.3 percent, to $6.52.
Batavia-based Graham Corp., which makes industrial equipment, was up 68 cents, or 4.7 percent, to $17.48.
The Buffalo Bloomberg Stock Index set a 52-week high of 231.18 on Dec. 31 and a 52-week low of 190.26 on May 17.