BioRestorative Therapies (BRTX) had the lowest return in Q1 2020 by a US stock, returning -98.1%.

ASSET	QUARTER	% RETURN
BioRestorative Therapies (BRTX)	Q1 2020	-98.11%
Borr Drilling (BORR)	Q1 2020	-94.48%
Permian Resources (PR)	Q1 2020	-94.37%
Sasol (SSL)	Q1 2020	-90.68%
Amplify Energy (AMPY)	Q1 2020	-90.52%
Creative Medical Technology (CELZ)	Q1 2020	-90%
Nine Energy Service (NINE)	Q1 2020	-89.66%
Forum Energy Technologies (FET)	Q1 2020	-89.41%
SM Energy (SM)	Q1 2020	-89.27%
KLX Energy Services (KLXE)	Q1 2020	-89.18%
Milestone Pharmaceuticals (MIST)	Q1 2020	-88.61%
Ovintiv (OVV)	Q1 2020	-88.23%
Oil States International (OIS)	Q1 2020	-87.67%
Vital Energy (VTLE)	Q1 2020	-86.9%
Matador Resources (MTDR)	Q1 2020	-86.36%
Nabors Industries (NBR)	Q1 2020	-86.33%
Fusion Fuel Green (HTOOW)	Q1 2020	-86.11%
NPK International (NPKI)	Q1 2020	-85.69%
Grace Therapeutics (GRCE)	Q1 2020	-84.92%
Kosmos Energy (KOS)	Q1 2020	-84.13%
Baytex Energy (BTE)	Q1 2020	-84.01%
Tetra Technologies (TTI)	Q1 2020	-83.84%
APA (APA)	Q1 2020	-83.61%
Transocean (RIG)	Q1 2020	-83.38%
Vivani Medical (VANI)	Q1 2020	-83.17%