Sorry, I couldn't find pricing data for that day. The closing price for Amazon (AMZN) on September 30, 2016 was $41.87. It was up 0.6% for the day. The latest price is $220.23.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
September 30 2016
$41.63
$42.00
$41.62
$41.87
88,611,319
Daily pricing data for Amazon dates back to 5/15/1997, and may be incomplete.