First National (FXNC) had the worst month in 1999 by a US stock in January 1999, returning -100%.

ASSET	MONTH	% RETURN
First National (FXNC)	January 1999	-100%
Protalix Biotherapeutics (PLX)	November 1999	-82.12%
Gulf Resources (GURE)	October 1999	-72.5%
NeoGenomics (NEO)	December 1999	-67.39%
Vericel Corp Ord (VCEL)	October 1999	-66.67%
MEDIFAST (MED)	August 1999	-64.7%
VirTra (VTSI)	January 1999	-63.64%
Lightwave Logic (LWLG)	February 1999	-62.5%
374Water Inc Common Stock (SCWO)	December 1999	-62.5%
DaVita HealthCare Partners (DVA)	February 1999	-61.93%
Assertio Therapeutics (ASRT)	April 1999	-61.25%
Ionis Pharmaceuticals (IONS)	December 1999	-60.14%
Stabilis Solutions (SLNG)	August 1999	-58.99%
Flexible Solutions International (FSI)	December 1999	-58.62%
Service Corporation International (SCI)	January 1999	-58.4%
Plumas Bancorp (PLBC)	June 1999	-58.33%
NVE (NVEC)	December 1999	-57.98%
Cheniere Energy (LNG)	November 1999	-56.9%
VirTra (VTSI)	August 1999	-55.56%
Odyssey Marine Exploration (OMEX)	September 1999	-55.36%
Benchmark Electronics (BHE)	October 1999	-55.01%
Dawson Geophysical (DWSN)	August 1999	-55%
VirTra (VTSI)	September 1999	-54.17%
Eterna Therapeutics (ERNA)	February 1999	-53.85%
Worksport (WKSP)	August 1999	-53.57%