Invest Ksh 100,000 in Old Mutual MMF for 20 years.
At Old Mutual Money Market Fund's current net yield of 8.21% (after Kenya's 15% withholding tax), a Ksh 100,000 deposit grows to about Ksh 516,454 after 20 years — about Ksh 416,454 in interest, assuming daily compounding and no withdrawals.
Final balance
Ksh 516,454
5.16× your deposit
Deposited
Ksh 100,000
One-off, no withdrawals
Interest earned
Ksh 416,454
At 8.21% net p.a.
Year by year
vs keeping it in a bank savings account
The same Ksh 100,000 at Credit Bank's deposit rate of 12.68% would grow to about Ksh 1,246,214 over the same 20 years — that's -Ksh 729,760 less than Old Mutual Money Market Fund.