01
Own a fraction
Hold 0.4 $STOCK and it behaves like any fungible token — swap it, send it, LP it. Exactly like a fractional share sitting in a brokerage app.
0.4 → balance only, no NFTThe mechanic
How the 404 works
ERC-404 is a hybrid standard: your balance trades as a fungible token, but every time it crosses a whole number, an NFT mints — and burns when you drop back below. On Stock404 that NFT is a Share Certificate. Fraction of a share = token. Whole share = certificate. Drag through the scenarios below to watch a balance mint and burn certificates in real time.
0.0
1.0
2.0
3.0
CERT02
Cross 1.0 → mint a Certificate
The instant your balance ticks over a whole number, a pixel-art Share Certificate NFT is minted to your wallet automatically. One whole share, one certificate.
1.0 → mint ◆ Certificate #NFT03
Sell below → it burns
Drop back under the whole number and the certificate burns, folding straight back into a tradable fraction. Provable, on-chain, no paperwork.
0.9 → burn ✕ back to fraction