Just because you said buy them doesn't mean you bought them. And if you had been robbed of a fortune you'd be telling the police, not bragging about it on here.
I, on the other hand, really did own a supertanker. Unfortunately I gave thieves access to it. Sneaky buggers didn't tell me they were thieves so I gave them my private key to the bridge and blow me if they didn't wander off with it. If only someone had told me that giving my private key to someone else was a bad idea.
Whada mistayka ta mayka.
But then I'm not a financial wizard like you. A financial wizard like you would never do such a thing. Can you imagine an expert in, say, bitcoin doing something so monumentally daft as leaving himself open to theft in the only way possible by giving away his private key? Ho ho ho, wouldn't that be hilarious? I mean, who would take financial advice from someone daft enough to do that? No. I implied.