best performing mid cap stocks may 1998

Repligen (RGEN) had the highest return in May 1998 by a mid-cap US stock, returning 33.3%.

ASSETMONTH% RETURN
Repligen (RGEN)
May 1998
33.33%
Vishay Intertechnology (VSH)
May 1998
26.64%
FirstCash (FCFS)
May 1998
23.61%
Oshkosh (OSK)
May 1998
20.76%
Pearson PLC ADR (PSO)
May 1998
20.63%
VSE (VSEC)
May 1998
20%
Avadel Pharmaceuticals (AVDL)
May 1998
19.4%
Sirius XM (SIRI)
May 1998
16.95%
Churchill Downs (CHDN)
May 1998
16.59%
Rush Enterprises B (RUSHB)
May 1998
16.4%
Pegasystems (PEGA)
May 1998
15.5%
Dillard's (DDS)
May 1998
14.85%
Sterling Construction (STRL)
May 1998
14.81%
Colliers International Group Inc Bats (CIGI)
May 1998
14.62%
Balchem (BCPC)
May 1998
13.61%
Kohl's (KSS)
May 1998
13.24%
O-I Glass (OI)
May 1998
13.23%
Group 1 Automotive (GPI)
May 1998
12.55%
PVH (PVH)
May 1998
11.83%
Smith AO (AOS)
May 1998
11.6%
Gentex (GNTX)
May 1998
10.98%
Cathay General Bancorp (CATY)
May 1998
10.65%
ViaSat (VSAT)
May 1998
10.25%
Signet Jewelers (SIG)
May 1998
9.14%
Stewart Information Services (STC)
May 1998
9.06%
Mid-cap stocks are treated as having a market cap between $2B and $10B.