Real-world assets are off-chain valuables such as shares, bonds, property, or commodities that are represented on a blockchain as tokens. The token settles in seconds and trades outside market hours, while the underlying asset stays with a custodian under existing regulation. That custodian is the part to investigate, since the token is only worth what it can be redeemed for. Check out xStocks on Solflare, or learn how tokenized stocks work.