BUZZ-Bombardier Inc: Most heavily traded on TSX
** Canadian plane and train maker's stock up 7.6 pct at C$1.28, most heavily traded on Toronto Stock Exchange
** Beijing Infrastructure Investment Co (BII), which offered to buy up to 100 pct of Bombardier's rail unit, put the unit's enterprise value - calculated as equity plus debt - at $7-$8 bln
** Analysts and bankers have pegged equity value of the unit, excluding debt, at about $5 bln
** "We believe that the market should react positively to the news given the additional clarity around (unit's) fair value," AltaCorp Capital analysts write in a note
** Bombardier turns down the offer underscoring its reluctance to cede control of the unit to a state-owned Chinese buyer at this juncture
** Up to Tuesday's close, Bombardier stock had fallen 71 pct this year
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