# OneTick Enterprise tick capture, storage and streaming analytics, sold only by quote. *https://stockmarketstack.com/tools/onetick · Tick Data Storage & Time-Series Databases* ## Facts ### At a glance | Field | Value | | --- | --- | | Vendor | KX | | Category | Tick Data Storage & Time-Series Databases | | Job | tick_storage | | Website | https://www.onetick.com | | Pricing model | subscription | | Free tier | false | | Open source | false | | Licence | none | | Self-hosted | true | | Tested hands-on | false | | Last updated | 2026-09-19 | ### Pricing | Tier | USD | Period | | --- | --- | --- | | OneTick Cloud | on request | — | | OneTick platform (on-premise or hosted) | on request | — | ### Coverage | Field | Value | | --- | --- | | Asset classes | stocks, options, futures, forex, bonds, crypto | | Markets | us, ca, eu, asia, global | | Works outside the US | true | | Data latency | realtime | | Platforms | web, library | | AI features | none | ### Interfaces | Field | Value | | --- | --- | | API | true | | Webhooks | false | | Scripting | Python | | Python | true | | Spreadsheet add-in | false | | MCP server | false | | Export | csv, parquet, api | ### Capabilities Yes: none No: charting, screening, scanning, backtesting, automation, live_trading, paper_trading, portfolio_tracking, broker_import, tax_reporting, alerts, news, options_analysis *Verified: pricing 2026-09-19; capabilities 2026-09-19; coverage 2026-09-19.* ## What it is OneTick is an enterprise tick data platform — capture, storage, historical query and streaming analytics in one system — sold to hedge funds, banks, exchanges and compliance departments. The vendor merged with KX on 15 September 2025, so it now sits in the same catalogue as kdb+, and the two products compete for the same budget line at the same institutions. Its distinguishing idea is that a query is a directed graph. You assemble event processors — the vendor counts hundreds of them, including transaction-cost and best-execution analytics — into a graph in a visual designer, and the same graph runs over stored history or over a live feed without being rewritten. That is the property an institution is actually buying: research and production run identical logic, and the surveillance case gets the same engine as the backtest. There is also a SQL interface and two Python APIs — a Pandas-style one and a graph-building one — so the graph is not the only way in. The performance claims are the vendor's own and are not tested here: over 10 million ticks per second per core in bulk processing, 400,000 to 600,000 messages per second per core on real-time collection, and more than 10 billion messages a day across its installed base. ## Pricing Nothing is published. Not a rate card, not a per-query price, not a starting figure, on either the product's own site or KX's — and that absence is itself the planning fact. Every other card in this category lets you estimate the bill from a download and a machine size; here the number comes from a demo, a trial and a negotiation, and it arrives attached to scope, core counts and data licensing you have not seen yet. The one structural hint the vendor gives is elastic burst licensing for queries that fan out across hundreds or thousands of cores, which implies compute is metered somewhere in the contract. ## Data & coverage Unusually for this category, the vendor also sells the ticks. The on-premise platform arrives empty, but OneTick Cloud is a managed service over normalised, cleansed exchange data — more than 200 global equity, futures and options markets, trades and quotes back to 1993, Level 2 and Level 3 book depth, US, Canadian, European and Asia-Pacific venues, and derivatives from CME, ICE and Eurex; the published coverage samples add FX and metals, fixed income and crypto venues alongside the listed markets. Queries run server-side and return CSV, Parquet or a dashboard, which is the point: you do not download gigabytes to compute one day's slippage. What the subscription covers in [exchange licensing](https://stockmarketstack.com/guides/real-time-market-data-fees) is a contract term, not a product feature. ## Integrations `onetick-py` on PyPI is the vendor's own client, MIT-licensed and published by OneMarketData, at 1.212.0 on 14 September 2026 — actively maintained, but useless without a cloud account or an installed server. A REST API, a SQL API, the graphical query designer and Jupyter-friendly Python access round it out, with NumPy, Pandas and Matplotlib in the documented workflow. ## Limitations - **No published price, and no self-serve path to one.** Budgeting requires a sales cycle. - **Half the documentation is public, and it is the client half.** The `onetick-py` reference is open and detailed, down to how the engine buffers ticks; the server's own manuals, the deployment guides and every licence term are not, so the operational burden is the part you cannot size before a trial. - **Query graphs are portable nowhere.** OTQ graphs and event processors are the vendor's, the way q is KX's — the migration cost is part of the purchase. - **Data licensing sits on top.** Exchange content carries the exchange's fees, and what the subscription covers is negotiated rather than listed. - **Not a fit for one person.** There is no free tier, no community edition and no small plan. ## Alternatives [kdb+](https://stockmarketstack.com/tools/kdb) is now a sibling product and publishes an actual price ladder, including a free 16 GB community edition. [ClickHouse](https://stockmarketstack.com/tools/clickhouse) and [QuestDB](https://stockmarketstack.com/tools/questdb) do the storage and the as-of join for nothing, leaving you to source the data — which is the trade this product exists to remove. [Databento](https://stockmarketstack.com/tools/databento) sells normalised historical and live tick data with published per-gigabyte prices if it is the data rather than the platform you need. See the rest of the [tick data storage category](https://stockmarketstack.com/categories/tick-data-storage). ## FAQ ### How much does OneTick cost? Nobody outside a sales conversation knows. As of 19 September 2026 neither the product site nor KX's product pages publish a rate card, a per-query price or a starting figure for either the platform or OneTick Cloud. Treat that as the fact it is — this is procurement with a demo, a trial and a contract, not a signup. ### Is OneTick still OneMarketData, or is it KX now? Both, in the way mergers usually resolve. KX and OneMarketData LLC announced their merger on 15 September 2025, the combined company is led by KX's chief executive, and OneTick Cloud is now listed among KX's products alongside kdb+. The OneMarketData name still appears on legal and package metadata. ### What does OneTick Cloud include that a database alone does not? The data. It is a managed service over normalised exchange data — the vendor advertises more than 200 global equity, futures and options markets with trades and quotes back to 1993 and Level 2 and Level 3 depth — queried on demand rather than downloaded as compressed files, with CSV and Parquet output. ### Can I try it without talking to anyone? Partly. A trial account for OneTick Cloud can be requested online and the `onetick-py` Python package installs from PyPI under an MIT licence, but it is a client — it needs either a cloud account or a locally installed OneTick server behind it, and neither of those is self-serve. ### Does buying OneTick cover the exchange fees on the data? Ask, in writing, before signing. Exchange-licensed content carries the exchange's own schedule of display, non-display and redistribution fees, and which of them a subscription covers is a term of the contract rather than a property of the software. ## Also from KX - [kdb+](https://stockmarketstack.com/tools/kdb.md) ## Also worth comparing - [ArcticDB](https://stockmarketstack.com/tools/arcticdb.md) — Versioned Pandas frames written straight onto S3, with no server to run. - [DolphinDB](https://stockmarketstack.com/tools/dolphindb.md) — Closed-source tick database with a vector language, as-of joins and streaming engines. - [InfluxDB 3](https://stockmarketstack.com/tools/influxdb.md) — Line-protocol time-series database rewritten on Arrow, DataFusion and Parquet. - [QuestDB](https://stockmarketstack.com/tools/questdb.md) — Open-source time-series SQL built for tick data — ASOF JOIN, SAMPLE BY, LATEST ON. - [Apache Druid](https://stockmarketstack.com/tools/druid.md) — Real-time OLAP cluster built for high-concurrency dashboards, not for research joins. - [ClickHouse](https://stockmarketstack.com/tools/clickhouse.md) — Columnar OLAP database that keeps years of ticks on disk cheaply and scans them fast.