A token contract is a small program that keeps a ledger. One line of that ledger is the total supply, the number of tokens the contract says exist. Anyone can read it. No account, permission or data vendor sits between the reader and the figure. For a stock token, total supply is the number of tokens, and so the number of shares, that exist on-chain.
What moves it
Two events change total supply. A mint creates new tokens and the number rises. A burn destroys tokens and the number falls. For Robinhood’s stock tokens, supply rises when tokens are minted and falls when they are redeemed. The plain mechanics of both are in mint and burn in plain terms.
What leaves it alone
Everything else. A transfer from one wallet to another moves tokens between two lines of the ledger and the total stays where it was. A trade in an on-chain pool is a transfer in both directions, so it does not change supply either. A token can change hands all day and finish with exactly the supply it started with.
That is why supply is a different measurement from volume. Volume counts activity. Supply counts what exists. A day with heavy trading and flat supply says holders swapped among themselves. A day with rising supply says new on-chain exposure was created.
Reading the number
Supply is a count of tokens. It has no dollar sign until a price is put beside it, which is its own problem, covered in tokenized value needs a good price. Token contracts generally count in very small units, so supply need not be a whole number of shares. Each stock token also has a multiplier that adjusts for corporate actions. A count of tokens and a count of shares can differ by that factor.
One reading of supply is a level. Two readings at different times give a change, and the change is the mint and redeem flow. The existing article on shares on-chain and flow covers how that flow is read.
What it cannot tell you
Supply says how many tokens exist. It does not say who holds them. One wallet could hold most of a token’s supply, or thousands could hold a little each, and the total would look the same.
It does not say why the number moved. A rise is net minting. Whether that was one large holder or many small ones is a separate question.
It says nothing about what stands behind the tokens. How the issuer holds shares, and what a holder can claim, is set by the issuer’s own terms. Those terms are where that answer lives. The contract’s count cannot supply it.
A reading that failed is also not a zero. If supply could not be read on a given pass, the right entry is unknown. Writing zero would describe every share being redeemed, which did not happen.
Where to see it
The Stocks On-Chain tab of the Crypto Market Map shows shares on-chain for every stock token. NoVo’s collector has recorded each token’s supply on every pass since 4 October 2026, which is what turns a level into a history.