Sorry, I couldn't find pricing data for that day. The closing price for Bitcoin (BTC) in terms of EUR on May 1, 2015 was 206.94. It was down 1.6% for the day. The latest price is 90,018.22.
DATE
OPEN
HIGH
LOW
CLOSE
May 01 2015
210.38
—
—
206.94
Daily pricing data for Bitcoin dates back to 7/14/2010, and may be incomplete.