I do not mean right now or anytime soon but for the foreseeable future 100 thousand dollars per bitcoin looks like the highest we can reach before the economics collapse. It will be around 17 trillion dollars to 18 trillion dollars in bitcoin marketcap and that is even though incredibly higher than what we have right now still looks like the max cap compared to all other worlds stock markets and commodity markets.
If the price reaches anywhere close to 100 thousand dollars ever, I will sell all my coins that I have and will sell all that I will ever earn without keeping any of them in my wallet. At that point people will start to realize it is not going anywhere higher.
It would be 1.7tn to 1.8tn, you're off by a factor of 10. The global stock market is about 100tn (I don't know an accurate figure with all recent falls factored in). That would put bitcoin at 1/50th of the global stock market, pretty huge but not unfeasible from an economic point of view.
Then considering that the derivatives market is in to the quadrillion's (thousand trillion) and there's plenty of fiat to go around and enable bitcoin to reach $100k or higher.