Seeking Investment Advice

So late last month (26th to be precise) I decided to hop on the mmf train and invested my savings huko.

I distributed them like this
NCBA - 110,000

Etica - 505,000

Sanlam - 302,500

KCB MMF - 100,268

Total was 1,018,268

Today, the 26th of April the gains are like this,
NCBA - 110,000

Etica - 508,058

Sanlam - 303,011

KCB MMF - 100,623

Total is 1,021,681 a net gain of 6.43% in roughly 17 days.

Is this decent ama iko low? And how best can I maximise it?