Step
What to do
Search Use Ctrl / ⌘ + F to find a firm or question below
Open Every title links to the corresponding published FastPrep problem
Practice Solve it on FastPrep with the available editor and test cases
Request Request another quant firm or more OA coverage
Stay current Watch this repository; rows are sorted by their latest verified sighting
Selection and source of truth This is a filtered view of FastPrep's production Firestore problem collection, refreshed on July 31, 2026 . It contains only public, published problem documents whose canonical company value exactly matches the tracked-firm allowlist in assets/company-domains.jsonLast seen is the newest ISO date in the document's lastSeen array.
FastPrep currently has no quant-specific target role or topic. Its target-role enum covers software engineering and data roles, so it cannot prove that an individual question was used for a quant trader or quant researcher position. This tracker therefore makes the narrower, supportable claim: these are question-bank items attributed to firms whose core business is quantitative/systematic/proprietary trading or investment management. Broad banks, fintechs, and diversified asset managers are excluded to avoid pretending that company affiliation is role evidence.
Only public-safe metadata appears here: firm, title, public problem URL, and latest sighting date. Answers, editorials, hidden tests, evaluator content, full private source statements, and restricted problems are never included.
Firm
Questions
Akuna Capital
24
Citadel
21
The D. E. Shaw Group
16
Hudson River Trading
11
IMC
9
Two Sigma
9
Optiver
7
Virtu Financial
7
DRW
6
Point72
5
Square Point
3
Wolverine Trading
3
Qube Research & Technologies
2
Susquehanna International Group
2
Geneva Trading
1
Headlands
1
Jane Street
1
Walleye Capital
1
Want another quant firm or more OA coverage? Open a firm request . Requests help prioritize reviewed FastPrep coverage; they do not add unverified questions directly.
Found a mismatch with an already-published FastPrep item? Open a correction issue . Do not submit invented questions, private assessment material, answers, or evaluator content. See CONTRIBUTING.md .
Newest verified sightings first · 🔥 seen in the last 2 weeks · 🆕 seen in the last 45 days
Firm
OA / Interview Question
Practice
Last seen
Optiver Overheat Prevention Controller Practice 🔥 Jul 30, 2026
Square Point Evaluating Circuit Expressions Practice 🔥 Jul 29, 2026
Akuna Capital Binary Circuit Practice 🔥 Jul 28, 2026
Akuna Capital Items Sort Practice 🔥 Jul 28, 2026
Akuna Capital Minimize Malware Spread by Removing a Node Practice 🔥 Jul 28, 2026
Virtu Financial Banking Transaction Exceptions Practice 🔥 Jul 28, 2026
Virtu Financial FIX Message Reconciliation Practice 🔥 Jul 28, 2026
Virtu Financial Profit Analysis Practice 🔥 Jul 28, 2026
Citadel Limit Order Book Matching Engine Practice 🔥 Jul 26, 2026
Hudson River Trading Count 2x2 Submatrices by Black Cells Practice 🔥 Jul 26, 2026
Hudson River Trading Cumulative Unique Bytes Practice 🔥 Jul 26, 2026
Hudson River Trading Market Data Signal Watcher Practice 🔥 Jul 26, 2026
The D. E. Shaw Group Maximum L1 Distance Between Equal-Length Subarrays Practice 🔥 Jul 26, 2026
Akuna Capital Maximum K-Star Sum Practice 🔥 Jul 24, 2026
Point72 Initial Public Offering Practice 🔥 Jul 24, 2026
Two Sigma Sewer Drainage Partition Practice 🔥 Jul 24, 2026
Virtu Financial Count Substrings With Identical Characters Practice 🔥 Jul 24, 2026
Virtu Financial HexSpeak Practice 🔥 Jul 24, 2026
Virtu Financial Maximum Apples That Fit in a Box Practice 🔥 Jul 24, 2026
Virtu Financial Minimum Steps to a Fibonacci Number Practice 🔥 Jul 24, 2026
Akuna Capital Profitable Project Pairs Practice 🔥 Jul 23, 2026
Optiver Power Cell Bank Practice 🔥 Jul 23, 2026
IMC Rock Jumping Practice 🔥 Jul 22, 2026
IMC Stack Batch Removal Practice 🔥 Jul 22, 2026
DRW Last Round for Each Player Practice 🔥 Jul 21, 2026
DRW Shortest Compressed Length After Removal Practice 🔥 Jul 21, 2026
Akuna Capital Array Challenge (QR Intern) Practice 🔥 Jul 20, 2026
Akuna Capital Communications Handler Practice 🔥 Jul 20, 2026
Akuna Capital K Smallest Substring Practice 🔥 Jul 20, 2026
IMC Chain of Command Practice 🆕 Jul 16, 2026
Optiver Construct Binary Tree S-Expression Practice 🆕 Jul 16, 2026
Optiver Days Between Practice 🆕 Jul 16, 2026
Akuna Capital Delivery Management System Practice 🆕 Jul 15, 2026
Akuna Capital Minimum Swaps Practice 🆕 Jul 15, 2026
Akuna Capital Movie Ratings Practice 🆕 Jul 15, 2026
Citadel Minimum Changes for a Periodic Palindrome Practice 🆕 Jul 15, 2026
Citadel Minimum Image Processing Cost Practice 🆕 Jul 15, 2026
DRW Doctor Appointment Slot Assignment Practice 🆕 Jul 10, 2026
DRW Maximum Even-Sum Neighboring Pairs Practice 🆕 Jul 10, 2026
DRW Minimize Maximum Group Difference Practice 🆕 Jul 10, 2026
IMC Sub-matrix Sums Practice 🆕 Jul 10, 2026
IMC Sub-matrix Sums Practice 🆕 Jul 10, 2026
IMC Choose Containers Practice 🆕 Jul 08, 2026
Two Sigma Balanced Split String with Wildcards Practice 🆕 Jul 06, 2026
Two Sigma Closest Color Practice 🆕 Jul 06, 2026
IMC Can Every Package Fit in a Box Practice 🆕 Jul 03, 2026
Optiver Multi-Level Inventory Storage System Practice 🆕 Jul 03, 2026
Point72 Test the Hypothesis Practice 🆕 Jul 03, 2026
The D. E. Shaw Group Minimum Frames for Equal Chunks Practice 🆕 Jul 03, 2026
The D. E. Shaw Group Non-Alternating Binary Partitions Practice 🆕 Jul 03, 2026
Qube Research & Technologies 🐘 Keep Them Apart 🦙 Practice 🆕 Jul 02, 2026
Qube Research & Technologies Array Nullification Practice 🆕 Jul 02, 2026
Two Sigma Linear Interpolator Practice 🆕 Jun 28, 2026
Two Sigma Online No-Intercept Linear Regression Practice 🆕 Jun 28, 2026
Hudson River Trading Backtick Identifier Converter Practice 🆕 Jun 17, 2026
Akuna Capital Calculate Portfolio Rebalancing Deltas Practice May 25, 2026
Akuna Capital Maximum Difference Practice May 25, 2026
Akuna Capital Maximum Label Difference in a Connected Component Practice May 25, 2026
Hudson River Trading Integer to String Without Built-ins Practice May 13, 2026
Point72 Lexicographically Smallest String After Substring Operation Practice May 10, 2026
Two Sigma Piecewise Linear Interpolation and Extrapolation Practice May 10, 2026
Citadel Minimum Path Sum to Target in Binary Tree Practice Apr 30, 2026
Point72 Generate an Optimal Portfolio Trading Report Practice Apr 27, 2026
DRW Simplified Tetris Engine Practice Mar 23, 2026
Headlands Disaster Recovery Practice Mar 21, 2026
Citadel Minimum Time to Process Requests Practice Mar 02, 2026
Citadel Process Scheduling Practice Mar 02, 2026
Two Sigma Calculate y/x using Patch Practice Nov 09, 2025
Citadel Best Sum Downward Tree Path Practice May 19, 2025
Citadel Social Media Suggestions Practice May 19, 2025
Point72 Get Triplet Count Practice Apr 09, 2025
Citadel Price Check Practice Feb 06, 2025
Citadel Palindromic Substrings (LC 647 :) Practice Jan 20, 2025
The D. E. Shaw Group Get Minimum Cost Practice Jan 12, 2025
The D. E. Shaw Group Tree Points Practice Jan 12, 2025
Citadel Get Distinct Goodness Values Practice Jan 09, 2025
Citadel Get Min Operations Practice Jan 09, 2025
Citadel Count Stable Segments Practice Jan 08, 2025
Citadel Find Consistent Logs Practice Oct 20, 2024
Akuna Capital Nearest Neighbouring City Practice Oct 03, 2024
The D. E. Shaw Group Subarray Removal Practice Oct 03, 2024
Akuna Capital Future Stock Prices Practice Oct 01, 2024
Square Point Empty Shelf Practice Sep 29, 2024
Square Point Suggested Products Practice Sep 29, 2024
Hudson River Trading Future Stock Prices Practice Sep 28, 2024
The D. E. Shaw Group Count the Number of Incremovable Subarrays II Practice Sep 21, 2024
Akuna Capital Update Release Scheduler (QR Intern) Practice Sep 20, 2024
Hudson River Trading Count Fancy Numbers Practice Sep 20, 2024
Citadel Get Max Throughput Practice Sep 19, 2024
Susquehanna International Group Equal Difference Pairs Practice Sep 19, 2024
Hudson River Trading Increasing Paths, part 1 Practice Aug 26, 2024
Hudson River Trading Increasing Paths, part 2 Practice Aug 26, 2024
The D. E. Shaw Group Subarray Removal Practice Aug 25, 2024
Akuna Capital Maximize Segregation Cost Practice Aug 06, 2024
Akuna Capital No Pairs Allowed Practice Aug 06, 2024
Susquehanna International Group Counting Triples Practice Aug 05, 2024
Akuna Capital Effective Manager Practice Jul 26, 2024
Akuna Capital An Evening of Movies Practice Jul 24, 2024
Optiver Customer Checkout Duration Practice Jul 24, 2024
Hudson River Trading Stock Buy Sell Position Indicator Practice Jul 17, 2024
Jane Street Transform String Practice Jul 17, 2024
The D. E. Shaw Group Get Minimum Cost Practice Jun 02, 2024
The D. E. Shaw Group Find Number of Interesting Pairs Practice May 10, 2024
The D. E. Shaw Group Maximum Size Subarray Sum Practice Apr 24, 2024
The D. E. Shaw Group Calculate Region Practice Apr 20, 2024
The D. E. Shaw Group Array Break Practice Apr 19, 2024
Citadel Maximize the Lottery ID Practice Apr 03, 2024
Wolverine Trading Permutation Operations 🌻 Practice Mar 18, 2024
Wolverine Trading Shared Interest 🌷 Practice Mar 18, 2024
Wolverine Trading The Huffman Decoder 🌼 Practice Mar 18, 2024
Two Sigma Nums That Are Divisible by N 🍋 Practice Mar 17, 2024
Two Sigma Replacing Val 🍓 Practice Mar 17, 2024
Geneva Trading Minimum Number of Permutation Operations 👑 Practice Mar 16, 2024
IMC Asteroid Collision (IMC Sydney 🐚) Practice Mar 12, 2024
Citadel Get Distinct Goodness Values Practice Mar 06, 2024
Citadel Get Minimum Operations Practice Mar 06, 2024
Optiver Print Schedule Practice Mar 06, 2024
The D. E. Shaw Group Police Station 🚓 Practice Mar 06, 2024
IMC Avoiding the Obstacles (IMC Sydney 🦪) Practice Mar 02, 2024
The D. E. Shaw Group Minimum Operations to Make Array Equal 🍋 Practice Mar 02, 2024
Citadel Math with Lego Blocks Practice Feb 28, 2024
Hudson River Trading Max Harvested Crops Practice Feb 28, 2024
The D. E. Shaw Group Find Maximum Beauty Practice Feb 24, 2024
Walleye Capital Get Minimum Time for DNS Resolution Practice Feb 20, 2024
Akuna Capital Difference Calculator (Akuna Shang Hai 🏙️) Practice Feb 02, 2024
Akuna Capital Minimum Chunks Required (Akuna Shang Hai 🌆) Practice Feb 02, 2024
Akuna Capital Minimum Cost to Move Within a Grid (Akuna Shang Hai 🌃) Practice Feb 02, 2024
Citadel Count Increasing Triplets Practice Jan 10, 2024
Citadel Prime Factor Visitation Practice Jan 10, 2024
