Two Long Island companies whose stock moved significantly during the week ending Feb. 18, 2011.
$12.43 (week's change: +53.6%)
52-week return: +206.9%
Shares hit an all-time high after the provider of equipment used to manufacture semiconductors, citing demand for its products, filed a "shelf registration" that will allow it to raise $20 million.
Napco Security Tech.
$2.24 (week's change: +16.7%)
52-week return: +1.4%
The maker of security products posted its second consecutive profitable quarter after a string of losses. Napco also said it has two "major" product launches scheduled for this summer.
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