Sorry, I couldn't find pricing data for that day. The closing price for AAR (AIR) on March 31, 2017 was $32.76. It was down 0.6% for the day. The latest price is $81.27.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
March 31 2017
$32.97
$33.16
$32.71
$32.76
273,000
Daily pricing data for AAR dates back to 3/17/1980, and may be incomplete.