MasTec (MTZ) had the highest return in October 1996 by a large-cap US stock, returning 45.1%.

ASSET	MONTH	% RETURN
MasTec (MTZ)	October 1996	45.15%
Devon Energy (DVN)	October 1996	38.12%
Jabil Circuit (JBL)	October 1996	37.14%
Rogers Communications (RCI)	October 1996	33.34%
Canadian National Railway (CNI)	October 1996	33.33%
Jack Henry & Associates (JKHY)	October 1996	27.67%
Fresenius Medical Care (FMS)	October 1996	26.6%
Graco (GGG)	October 1996	23.6%
Suzano Papel e Celulose SA ADR (SUZ)	October 1996	23.25%
Advanced Micro Devices (AMD)	October 1996	21.37%
Lattice Semiconductor (LSCC)	October 1996	20.7%
Western Digital (WDC)	October 1996	20.5%
Progressive (PGR)	October 1996	20.09%
APA (APA)	October 1996	19.83%
Expeditors International of Washington (EXPD)	October 1996	18.79%
Avery Dennison (AVY)	October 1996	18.69%
Gold Fields Ltd ADR (GFI)	October 1996	18.54%
Wintrust Financial (WTFC)	October 1996	18.52%
Baker Hughes (BKR)	October 1996	17.73%
Schlumberger (SLB)	October 1996	17.13%
Brookfield (BN)	October 1996	16.98%
Sanmina (SANM)	October 1996	16.93%
NetApp (NTAP)	October 1996	16.67%
Tower Semiconductor (TSEM)	October 1996	16.38%
Royal Bank of Canada (RY)	October 1996	16.2%

Large-cap stocks are treated as having a market cap of $10B+.