Simplicity bond fund

[SBQ]

I invested $20 K since June this year (3 months) in Simplicity NZ bond fund - returns so far +3% after tax (28%) and fees.

Fees are in single digits so far! $2.5 monthly fee ($30 per year) and 0.1% management fee

My kiwisaver is with Simplicity too (switched to balanced fund recently)

3% net in 3 months? That's 12% per year return after tax? Too good to be true.