Interactive · deterministic · local
Inventory Lab
Synthetic modelGive two vaults an inventory instruction and the model shows what could be matched internally, what would still have to be routed to an external venue, and which execution path the planner would select. It runs entirely in your browser.
This is a teaching and design tool. It is not a wallet application, a live quote, or a simulation of deployed contracts. Nothing here can be executed.
Reference price and corporate actions
Stock Tokens are not trading, so no token feed exists. The lab reads the underlying listed share from a free public source and uses it as a stand-in reference. Prices are delayed and unofficial, and are not a quote.
Modeled result
Synthetic modelSelected path · candidate batch
Compatible in this model
Both vaults satisfy the mock constraints, neither is modeled worse off, and the modeled total improves.
- Gross order size
- 180 token units
- Internally matched, counted once
- 80 token units
- External residual
- 20 token units
- Reduction in external order size
- 88.9%
- Independent modeled cost
- 56.00
- Candidate batch modeled cost
- 10.80
- Modeled difference
- 45.20 lower in batch
Per-vault modeled cost
| Vault | Independent | In batch | Modeled effect |
|---|---|---|---|
| Vault A+100 | 31.00 | 8.40 | better by 22.60 |
| Vault B-80 | 25.00 | 2.40 | better by 22.60 |
Accounting units are a hypothetical USD-like illustration, not dollars and not profit. In this two-vault model the crossing price equals the external reference price, and matching fees and batch gas are split equally.
The download contains inputs and computed results only. No transaction hash exists, because nothing executes.
This model omits slippage, price changes, adversarial execution and real liquidity-position gas. It does not establish production savings.
The four presets are the reference cases: compatible flow, same direction, too small to help and stale price. Two of them reject the batch — that is the point. Read the model and formulas.