Docs
The math and rules behind the stall. Plain language first. Formulas where they earn their keep.
Overview
SWAPMEET is a non-custodial batch purchase of eight tokenized equities on Robinhood Chain. You pick a dollar amount. The stall splits it evenly across the crates you keep, caps each leg at 0.5% of pool depth, quotes impact before you sign, and executes all legs or none from your wallet.
For the interactive board, go to the stall.
Even split + caps
per_i = amount / N cap_i = liquidity_i × 0.005 filled_i = min(per_i, cap_i) unplaced = sum(max(0, per_i - cap_i))
At $100 across eight, nothing caps. The smallest pool in the default set (MSFT) has a 0.5% cap near $9,192. Unplaced funds are shown and returned, never quietly absorbed.
Readable fractions
Shares are described as people speak: 5.6% of one Nvidia share, never a long raw decimal. Whole shares use two decimals.
Consensus price
Price is a liquidity-weighted consensus across pools deeper than $50,000. A single thin pool never decides the quote. If a token has no deep pool, that crate is closed and the remaining legs continue.
cost ≈ size / (liquidity / 2 + size)
A $100 basket across these eight costs a fraction of a cent in price impact. The page shows that arithmetic before you sign.
Authenticity
Tokens are matched by exact contract address and a short name that ends with • Robinhood Token. Substring checks are rejected on purpose. A fake with a 34,090-character name would pass an includes() check.
Security model
- Non-custodial: batch of swaps from the buyer's wallet, all legs or none.
- Consensus quote across deep pools only.
- Hard 0.5% per-pool cap; unplaced funds returned.
- Purchase only during US market hours on a real calendar.
Tokenomics
The stall works with no protocol token. A beginner's first hundred dollars goes into the eight companies, whole and unskimmed. Protocol fees and optional custom stalls are a separate product surface and never appear inside the default basket.