Hmm, not really. If you buy some shares from me for $1000, we settle and I give you the shares and you give me the $1000, and I can spend the $1000 on plane tic

Hmm, not really. If you buy some shares from me for $1000, we settle and I give you the shares and you give me the $1000, and I can spend the $1000 on plane tickets or wine or put it in the bank or whatever, there is no $1000 that is "tied" to any shares. Perhaps you value those shares at $1000 on your balance sheet as their "book value" or "cost basis" or whatever, but the $1000 doesn't exist (you gave it to me), all you have is shares.