what is the best low cost index fund

KORU has had the highest return since January 1, 2025 by a major index or ETF, returning 130.7%.

ASSET % RETURN
KORU
130.69%
JNUG
112.44%
NUGT
111.15%
NUSI
101.19%
MEXX
91.21%
EUAD
74.49%
DFEN
73.66%
EURL
63.25%
SGDM
62.39%
SHLD
60.63%
YINN
59.22%
GDXJ
55.85%
RING
55.82%
BRZU
55.22%
SLVP
53.62%
GOEX
53.51%
PLTM
53.2%
PPLT
53.04%
GDX
52.7%
GOAU
52.53%
GREK
52.19%
EPOL
50.79%
SIL
50.47%
ISGPF
49.92%
UBR
49.36%