Office vacancy rates hardly budged in the third quarter, maintaining an average 6.3 percent in the greater San Fernando Valley area for the second quarter in a row, according to data just released by Grubb & Ellis. The most movement occurred in the East Valley where 46,377 square feet of space was absorbed, causing vacancies to dip to 3.2 percent from 4.8 percent in the second quarter. The greatest absorption rates occurred in the Conejo Valley where 163,818 square feet of office space was absorbed. The submarket’s vacancy rate remained relatively flat at 6.5 percent, compared to 6.4 percent in the prior quarter. Over at the eastern end of the greater Valley, Glendale’s vacancy rate continued to rise. The city registered a 16.5 percent vacancy rate in the quarter, up from 14.5 percent in the prior quarter and 15 percent a year ago. Meanwhile, Burbank’s vacancy rate fell to 4.2 percent versus 5.9 percent in the prior quarter.