BITCOIN of course!!!
How would U be feeling more comfortable with!!!
Having 100.000.000$ in cash means, sitting in a bank, money of yours which is lended with interest to others and make their life miserable from interest
OR
Having 100.00.000$ in Bitcoin, stored in one or multiple Cold Storages ? Having full control over your money, no withdrawal limits within 24hrs, no worrying for nothing as long Internet exists and Bitcoin runs as an
fortificated network due to miners activity.
Overall, having 100.000.000$ in Bitcoin means to own one of the scarcest asset that is out there.. even scarcer than mf gold itself.
It's all matter of perspective from an individual to another.
Had I owned 100.000.000$ this is how would I go for protecting my wealth.
45% of it in Bitcoin
45% of it in Physical Gold
10% to go through the life!
So, all I can suggest to you, is measure what U protect a store of value, an hedge agains cash inflation which raises almost 2% every year.