Carnival (CCL) had the lowest return between 2019 and 2021 by a US stock in the S&P 500 (GSPC), returning -56.7%.

ASSET	YEARS	% RETURN
Carnival (CCL)	2019-2021	-56.69%
Norwegian Cruise Line (NCLH)	2019-2021	-50.48%
Viatris (VTRS)	2019-2021	-48.55%
PG&E (PCG)	2019-2021	-48.45%
Occidental Petroleum (OXY)	2019-2021	-47.1%
United Airlines (UAL)	2019-2021	-46.41%
Boeing (BA)	2019-2021	-34.47%
Coinbase Global (COIN)	2019-2021	-33.76%
TKO (TKO)	2019-2021	-30.86%
Paramount Global Class B (PARA)	2019-2021	-25.07%
Las Vegas Sands (LVS)	2019-2021	-20.76%
Biogen (BIIB)	2019-2021	-19.18%
Delta Air Lines (DAL)	2019-2021	-17.93%
Royal Caribbean Cruises (RCL)	2019-2021	-17.42%
Walgreens Boots Alliance (WBA)	2019-2021	-13.19%
Molson Coors Brewing (TAP)	2019-2021	-11.65%
Fox Corp Class B (FOX)	2019-2021	-11.22%
Lamb Weston (LW)	2019-2021	-10.07%
Wynn Resorts (WYNN)	2019-2021	-7.94%
Pinnacle West Capital (PNW)	2019-2021	-6.98%
Halliburton (HAL)	2019-2021	-6.97%
Schlumberger (SLB)	2019-2021	-6.11%
Southwest Airlines (LUV)	2019-2021	-5.34%
Contura Energy (CTRA)	2019-2021	-5.3%
Warner Bros Discovery (WBD)	2019-2021	-3.41%