If you think you need to buy Bitcoin when an institutional bought it, I don't think that's good... probably you already missed the dip.
However, it can take months for their investment to show on price. Like in 2020, we saw capitulation and long accumulation but suddenly Bitcoin broke $20k very fastly and after that, the rest is history with new all time high to about $60k.
The latest rise to $69k is unsustainable because lack of volume. We will have a more sustainable and bigger growth when volume comes. Retail investors did not join much in the latest peak around $69k. It is not a signal of mania phase and I believe we will see it in 2020. In first or second quarter