BUZZ-Axia NetMedia Corp: To be taken private
** Canadian fiber optic network provider's shares up 47.4 pct at C$4.20
** Stock rises as much as 47.5 pct to 8-1/2-year high of $4.21
** Company to be taken private by Partners Group for $4.25 per share, or $272 mln
** Offer price represents 49 pct premium to stock's Tuesday close
** Up to Tuesday's close, stock had fallen about 11 pct in past 12 months
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