The consolidated cross-desk position blotter — the first screen on any multi-strategy trading desk. Every strategy desk's positions are sized to its Desk Allocator capital weight, then the same ticker held by more than one desk is netted, exactly as it would be in a real prime-brokerage account. Rolls up firm gross / net exposure, the long/short split, top-10 concentration and sector tilts; surfaces conviction overlap (names multiple desks independently want) and desk conflicts (one desk long, another short the same name). The model book the desk stack implies — distinct from the actual portfolio.