Sorry, I couldn't find pricing data for that day. The closing price for Snap (SNAP) on May 19, 2017 was $20. It was down 2.1% for the day. The latest price is $5.23.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
May 19 2017
$20.42
$20.64
$19.93
$20.00
18,960,740
Daily pricing data for Snap dates back to 3/2/2017, and may be incomplete.