Determinism for the order book.
Tick data and order events need predictable storage latency — not a query planner that gets cute under load.
General-purpose databases trade tail latency for throughput. At market open, p99 spikes are the difference between a fill and a regret.
Capabilities that map directly to the pain.
Embedded engine
Skip the network entirely. Recall from the same process that runs strategy code.
Append-optimized writes
Event-sourced storage with WAL durability. No write amplification from in-place updates.
Time-partitioned scans
Replay any window of the tape without dragging the whole table through cache.
Lossless audit
Every event preserved exactly as received. Reproducible backtests, reproducible compliance.
The architectural decisions that matter here.
Reproducibility
Event sourcing means a backtest in March matches a backtest in November on the same data.
Crash durability
Battle-tested WAL — no exotic flush configs to reason about during a halt.
Want to see this running on your data?
Memory at the speed of speech.
Conversational voice agents have a ~200ms latency budget before they sound unnatural. CortexDB delivers full long-term recall inside it.
Decisioning before the bid window closes.
Real-time bidding gives you ~10ms after the auction call. Profile lookups can't be a round trip.
High-cardinality storage that doesn't fold under write pressure.
Metrics, traces, and logs at modern scale crush row stores. CortexDB is built for the append-heavy, time-bounded shape of telemetry.