There is a stock exchange somewhere on Robinhood Chain, and not one of its companies exists.
Totally Real Securities is a collection of 4,444 fictional publicly-traded companies - each with its own ticker, sector, market cap, and rank from #1 to #4444.
The market cap is the rarity. The company ranked #1 sits above $3 trillion - a blue chip of a market that was never audited - while #4444 is a gloriously worthless penny stock.
Four hidden tiers span the collection: most are Common, a few hundred are Rare and Epic, forty are Legendary, and only four are Mythic, stamped HALTED as if the exchange pulled them off the board.