** Shares of electric vehicle technology co Janus Electric JNS.AX rise 74.2% to A$0.27, on track for best day if current gains hold

** Shares hit their highest level since May 27

** Four new U.S.-based customers order a combined 67 diesel-to-electric truck conversions, 77 swappable battery packs and four Janus Charge & Change Stations with a total value of A$45 million ($31.53 million)

** About 2.7 million shares change hands, 9.4x the 30-day average of 286,008

** Stock has risen nearly fivefold in value this year, including moves in current session

($1 = 1.4273 Australian dollars)