In trading on Friday, shares of Extra Space Storage Inc (Symbol: EXR) crossed above their 200 day moving average of $155.97, changing hands as high as$156.06 per share. Extra Space Storage Inc shares are currently trading up about 1% on the day. The chart below shows the one year performance of EXR shares, versus its 200 day moving average: Looking at the chart above, EXR's low point in its 52 week range is $139.97 per share, with$216.52 as the 52 week high point — that compares with a last trade of $15 ...