https://www.stockcalc.com/blog/BrianD/2017/08/16/seadrill-sdrlnys-and-bioamber-bioanys-are-biggest-stock-decliners-ytd-on-nyse/
Seadrill (SDRL:NYS) and BioAmber (BIOA:NYS) Are Biggest Stock Decliners YTD on NYSE