At the current price, I would use at most 50% for paying for accreditation courses and setting up a business for energy and water efficiency auditing. The rest I would keep for quite some time.
It is probably better though if you try to keep it a little bit more for now because apparently, the price is going up and you wouldn't want to miss that up in value, especially when that's 50% of what you can possible gain from the hype.