QStudio 4.09 introduces a number of new features to make exploring data easier than ever.
Column Stats
Allows getting a count of nulls, averages and how many distinct values a column contains by hovering the column header:
Transposed row(s)
Have a very wide table? Want to quickly see all the column?
Transpose from a row to column based layout for those rows. Allowing you to quickly see all values:
Dive-into Nested Results
Double-click on a nested array or kdb structure (table/dict) to pop-out a table showing only the nested item. You can repeat this to dig deeper and deeper into nested data. (Thanks to Oleg/QPad on pioneering this idea).
As well as these new features, a large number of bugs were fixed:
4K Monitor support was significantly improved. You have the option to scale the full UI in preferences.
Apple Mac got a dedicated release and custom App download.
2025-04-22 – 4.08 – Bugfix: Candlestick charts were wrong as receiving wrong timezone from kdb driver. Timezone now set to UTC.
– Bugfix: “Save as” to .sql was shrinking text. Now fixed.
– Bugfix: Show red X close on every document tab.
2025-04-06 – 4.07 – Add UI Scaling and Font size as separate options to help with 4K monitors
– Bugfix: Kdb+ Queries with errors could cause 30 second freezes.
– Bugfix: Switch back to MonoSpaced font. Variable width fonts cause wrong caret position.
– Improved high resolution QStudio icon.
– Mac: Bugfix: Prefences dialog fixed and allows choosing font.
– Mac: Fixed Menu shoing about/preferences/exit.
– Mac: Allow Command+Option+E to run current query.
– 4K handling improved sizing of dialogs.
– Bugfix: Improved duckdb init when folder is empty.
2025-03-13 – 4.06 – Add ability to transpose rows.
– DuckDB 1.2.1. Improve display of DuckDB arrays.
– Add comma separator for thousands option.
2025-02-23 – 4.05 – Upgrade kdb+ c/jdbc.java to allow SSL TLS.
– Add preference to allow hiding all tooltips.
– Double-click on kdb+ table with dictionary/table/list nested in cell will pop it out.
2025-01-23 – 4.04 – Show column info (avg/min/max) when column header is hovered.
– Remove watched expressions entirely.
– Improved UI threading for tree/chart display.
2025-05-08 – Private equity firm TA announced an “All-Cash Offer to Acquire FD Technologies, Owner of Global Real-Time Analytics Leader KX”.
Most people are probably wondering how this came about:
1996 – Brian established First Derivatives (FD) in 1996 from his mother’s spare bedroom (Newry, Northern Ireland) with a loan of £5,000 from the Credit Union.
1998 – Kdb+ – In-memory column based database created by KX
KX and FD work in partnership to grow the business.
2014-10 – First Derivatives acquires a controlling stake in Kx Systems.
2018 – FD agrees to buy out minority Kx Systems shareholders (Arthur and Janet)
2019 – First Derivatives completes acquisition of the minority shareholdings in Kx Systems, taking the company’s total stake in the business to 100 per cent for $53.8 million (€48m) in cash.
“The deal marks an important milestone for the company”, chief executive Brian Conlon said.
2019-07-28 – Brian Conlon, one of Northern Ireland’s most successful businessmen passes away. (link)
2020-01 – Seamus Keating appointed as CEO
2024-03 – FD Technologies broken into 3 separate firms:
MRP – Marketing (spun off into a merger)
First Derivative consulting arm.
FD Technologies owning the KX software business
2024-12 – FD Technologies plc (LON:FDP) completes sale of First Derivative (consultancy) to EPAM Systems, Inc..
2025-05-08 – Private equity firm TA announced an “All-Cash Offer to Acquire FD Technologies, Owner of Global Real-Time Analytics Leader KX”.
QStudio is now 100% Free. No registration or license required.
Why? Are you shutting down?
Quite the opposite, we believe free and open source is the future and that is where we are going.
If anything we want customers to take this as a massive thanks.
Thank you for being part of driving QStudio forward and sponsoring development and cheering us along all these years.
Thanks in particular to
Thanks in particular to the large finance firms that took a chance on us. Big firms can be bureaucratic with onboarding, purchasing policies, vendor lists, 30 page contracts so I want to thanks all those individuals that jumped those hurdles to get us onboarded and those that put it on the corporate credit card. Below this post is an image containing what may or may not be some customers and other firms that have provided feedback, assistance and input over the years. Strictly speaking we are not allowed to confirm nor deny customers.
What I would say as an external party is that on average these places knew how to complete paperwork, get out of staffs way and enable them to get work done so they are probably better places to work on average.
Over the years, a few larger firms failed to onboard as those attempting it were ground down under the paperwork.
The good news for them is that QStudio is now free and the paperwork should be halved!
If you have any bugs, issues or feedback to report please join us on github
This is me cancelling all the individual users that paid annually for QStudio after 10+ years of building them up! Similarly all corporate contracts are also terminated.
Thanks
Note: For those who recently renewed we are offering a Free Pulse license for 10x the users you purchased for QStudio. Get in touch for a demo.
Want to create beautiful live updating SQL notebooks?
While being able to easily source control the code?
and take static snapshots to share with colleagues that don’t have database access?
Today we launched exactly what you need and it’s available in both:
QStudio Version 4 – Desktop SQL Client entirely based on editing markdown files locally.
Pulse Version 3 – As a shared team server, where users only need a web address to get started and share results.
SQL Notebook Examples
We have worked with leading members of the community to create a showcase of examples.
These are snapshotted versions with static data. The source markdown and most the data to recreate them are available on github.
Let us know what you think, please report any issues, feature suggestions or bugs on our github QStudio issue or Pulse issue tracker.
Thanks to everyone that made this possible. Particularly Brian Luft, Rich Brown, Javier Ramirez, Alexander Unterrainer, Mark Street, James Galligan, Sean Keevey, Kevin Smyth, KX, Nick Psaris and QuestDB.
DuckDB has skyrocketed in the last year and Amsterdam is it’s home. QStudio will be there in 2025.
31st January 2025 – 16:40 Stock data analysis with DuckDB
One year ago we decided to bundle DuckDB as we thought it was awesome. A free column oriented database that can open local databases and perform ASOF joins at speed! We knew QStudio users would love it. This year Ryan is excited to be speaking at Duckcon #6 in Amsterdam.
In 1998 kdb+ was released and changed the finance database industry. We want to do it again.
Today we are releasing kdb+ 5.0 that Works Easily for Everyone, Everywhere, with Everything.
A Data Platform that Easily Works for
Everyone – Is the most user friendly q ever
Everywhere – Finance and beyond
Works with Everything
Works with every major database tool seamlessly.
Interoperates with R/Python and almost every major data tool using high speed standards
The Past – What we have done
15 years ago we had a product that was light years ahead of our competition. When you download q today it looks fundamentally similar to how it looked then. Users are presented with a bare q prompt and left to create a tickerplant, a framework and various parts themselves to get real work done.
The landscape has changed and we need to change faster with it. Today we address that. How?
1. We are going to listen and embed ourselves with customers. Pierre and Oleg have been sitting and working with kdb teams at every major bank and hedge fund. They have seen the problems that are being solved, what amazing work those teams have done and where we can improve the core to help them.
2. We are working with the community. Data Intellect invented the marvellous Torq framework, Jo Shinonome has created Kola, Daniel Nugent wrote a wonderful testing framework and numerous others have written useful q modules. They’ve written some great useful components and provided us with lots of insight.
3. We are learning from the competition. Andrew and Ashok have gone round every database and technology similar to ours and examined their strengths and weaknesses. They coded on each and have found some amazing parts but going further they have looked at how those businesses operate and how they attract users.
The Past
Previously. Someone downloaded kdb then needed to email us to use commercially and wait months for their company to negotiate a contract.
Previously. Someone starting with kdb has to recreate a lot of the framework work teams in banks have done and they have to discover and adapt the wonderful work the community has done. We want to unleash that creativity.
Previously. Someone trying to use kdb with tableau, pulse, java, c# has to learn our own driver and struggle to get it to communicate.
Previously. Someone trying to write queries has to write qSQL.
Today we are releasing an amazing version of kdb+ that Works Easily for Everyone, Everywhere with Everything.
Everyone = Modules
Today: We are revealing a Module Framework built into kdb+. This is going to make it easier for everyone to get started.
Bringing the current enterprise quality code to everyone AND enabling existing community contributions to be reused easily.
The great news is, we’ve worked with partners to already have production quality modules available from day zero:
The framework is documented and public, so you can even load modules from github or your own git URL. (This has required making namespaces stricter to prevent one module from being able to affect another. No more IPC vs local loading oddities). Kdb now ships with a packaging tool called qpm based on concepts similar to NPM.
This will allow both KX and the community to experiment in modules and if successful to integrate those libraries into core.
It will allow you to get up and running with kdb+ faster, at less cost and receive production quality maintenance and feature updates for larger parts of your stack.
Everyone = SQL = Becoming as SQL compatible as possible.
Before – piv:{…….} ij -100 sublist.
Example: Select *
Example: Select * from t inner join v LIMIT 50
Example: Pivot using duckdb notation
Example: sums, prods, finance functions.
Query it as if standard postresql database – The old driver is loadable via module.
Partitioned databases now all “date=…” to be placed anywhere in the query. If it’s not a nice clear error message is sent.
q)select * from partitionedtable where (price<10) AND (date=.z.d)
q)PIVOT Cities ON Year USING first Population as POP,Population as P
Country Name | 2000_POP 2000_P 2010_POP 2010_P 2020_POP 2020_P
--------------------|----------------------------------------------------------------------
NL Amsterdam | 1005 [1005] 1065 [1065] 1158 [1158]
US Seattle | 564 [564] 608 [608] 738 [738]
US New York City | 8015 [8015] 8175 [8175] 8772 [8772]
With Everything = Postgres Wire Compatible
We’ve listened to user problems with ODBC, tableau, kx drivers over the years and we are now bundling pgwire compatibility within the default kdb engine.
Anything that bundles a postgres driver will now work with kdb+.
With Everything = PyArrow + Parquet
Select from and save to a wide range of open standards: parquet, arrow, delta lake, iceberg.
q)select * from file.parquet
q)select * from s3://blah.com/foo
q)select * from http://homer.internal/data.csv
q)`:asd.parquet 0: table
`:asd.parquet
This will provide: runtime checking, optimization of code and we’ve worked with qStudio and vs code to automate checks in the UI.
Previously
You had to spend months getting kdb+, then setting it up and building a platform, integrating it with other systems, finding experts.
Today
Download, reuse the existing modules, it works with all existing tools, and the greater SQL and typing support allows more people to safely run queries.
Works Easily for Everyone, Everywhere with Everything.
Everyone = friendlier SQL, type hints, more functions builtin including PIVOT.
With modules to allowing greater community contribution and reuse.
One Last Thing: Everywhere = We are releasing the 32 bit version of q FREE for all usages including commercial.
Disclaimer: The above is entirely fictional based on some wishes of the author, no proprietary information is known nor being shared. If you like the ideas let KX know. If you dislike the ideas, let me know and post your thoughts for improvement.
It’s been 2 years since I worked full time in kdb+ but people seem to always want to talk to me about kdb+ and where I think it’s going, so to save rehashing the same debates I’m going to put it here and refer to it in future. Please leave a comment if you want and I will reply.
Let’s first look at the use cases for kdb+, consider the alternatives, then which I think will win for each use-case and why.
Use Cases
A. Historical market data storage and analysis. – e.g. MS Horizon, Citi CloudKDB, UBS Krypton (3 I worked on).
B. Local quant analysis – e.g. Liquidity analysis, PnL analysis, profitability per client.
C. Real-time Streaming Calcuation Engines – e.g. Streaming VWAP, Streaming TCA…
D. Distributed Computing – e.g. Margin calculations for stock portfolios or risk analysis. Spread data out, perform costly calcs, recombine.
Alternatives
Historical Market Data – kdb+ Alternatives
A large number of users want to query big data to get minute bars, perform asof joins or more advanced time-series analysis.
New Database Technologies – Clickhouse, QuestDB.
Cloud Vendors – Bigquery / redshift
Market Data as a Service
Let me tell you three secrets, 1. Most users don’t need the “speed” of kdb+. 2. Most internal bank platforms don’t fully unleash the speed of kdb+. 3. The competitors are now fast enough. I mean clickbench are totally transparent on benchmarking..
Likely Outcome: – Kdb+ can hold their existing clients but haven’t and won’t get the 2nd tier firms as they either want cloud native or something else. The previous major customers for this had to invest heavily to build their own platform. As far as I’m hearing the kdb cloud platform still needs work.
Local Quant Analysis – Alternatives
Python – with DuckDB
Python – with Polars
Python – with PyKX
Python – with dataframe/modin/….
Now I’m exaggerating slightly but the local quant analysis game is over and everyone has realised Python has won. The only question is who will provide the speedy add-on. In one corner we have widely popular free community tools that know how to generate interest at huge scale, are fast and well funded. In the other we have a niche company that never spread outside finance, wants to charge $300K to get started and has an exotic syntax.
Likely Outcome: DuckDB or Polars. Why? It’s free. People at Uni will start with it and not change. Any sensible quant currently in a firm will want to use a free tool so that they are guaranteed to be able to use similar analytics at their next firm. WIthout that ability they can only go places that have kdb+ else face losing a large percentage of their skillset.
Real-time Streaming / Distributed Computing
These were always the less popular cases for kdb+ and never the ones that “won” the contract. The ironic thing is, combining streaming with historical data in one model is kdbs largest strength. However the few times I’ve seen it done, it’s either taken someone very experienced and skillful or it has become a mess. These messes have been so bad it’s put other parts of the firm off adopting kdb+ for other use cases.
Likely Outcome: Unsure which will win but not kdb+. Kafka has won mindshare and is deployed at scale but flink/risingwave etc. are upcoming stars.
Summary
Kdb+ is an absolutely amazing technology but it’s about the same amazing today as it was 15 years ago when I started. In that time the world has moved on. The best open source companies have stolen the best kdb+ ideas:
Parquet/Iceberg is basically kdb+ on disk format for optimized column storage.
Apache Arrow – in-memory format is kdb+ in memory column format.
Even Kafka log/replay/ksql concept could be viewed as similar to a tplog viewed from a certain angle.
QuestDB / DuckDB / Clickhouse all have asof joins
Not only have the competitors learnt and taken the best parts of kdb+ but they have standardised on them. e.g. Snowflake, Dremio, Confluent, Databricks are all going to support Apache Iceberg/parquet. QuestDB / DuckDB / Python are all going to natively support parquet. This means in comparisons it’s no longer KX against one competitor, it’s KX against many competitors at once. If your data is parquet, you can run any of them against your data.
As many at KX would agree I’ve talked to them for years on issues around this and to be fair they have changed but they are not changing quick enough.
They need to do four things:
Get a free version out there that can be used for many things and have an easy reasonable license for customers with less money to use.
Focus on making the core product great. – For years we had Delta this and now it’s kdb.ai. In the meantime mongodb/influxdb won huge contracts with a good database alone.
Reduce the steep learning curve. Make kdb+ easier to learn by even changing the language and technology if need be.
You must become more popular else it’s a slow death
This is focussing on the core tech product.
Looking more widely at their financials and other huge costs/initiatives such as AI and massive marketing spending, wider changes at the firm should also be considered.
2024-08-03: This post got 10K+ views on the front page of Hacker News to see the followup discussion go here.
One user suggested Deferred Sync. I’m not including it as I think the implementation is bad and encourages code that would be unsafe and dangerous. To get an idea of why, see this excellent article: https://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/
In 1998 kdb+ was released and changed the finance database industry. We want to do it again.
Today: We are revealing a Module Framework built into kdb+. This is going to make it easier for everyone to get started.
