Virtu Financial Interview ProcessTier 3

Global Market Maker · New York

81 practice questions → Apply at Virtu Financial → Learn more about Virtu Financial ↗ Report a question from your Virtu Financial interview

problems

28 easy 49 medium 13 hard

hires: Quant Trader / Researcher, Quant Strategist / Developer, Software / Automation

Interview funnel

These stages are the quant tracks. Software engineering loops are only mapped where a stage names them.

1 Online Assessment
2 HR / Behavioral Screen
3 Technical Phone (1–2 rounds)
4 Onsite / Superday
5 Final (Head / Team Lead)

Online Assessment

Virtu's screen is a coding OA whose pass rate it cares about - sort order, integer overflow, and edge cases are the usual traps. The Quant-Trader / dev / SRE tracks share a recurring 5-problem algorithmic bank; the PhD Quantitative-Strategist OA is a newer, finance-flavored 4-problem set (basket valuation, chocolates greedy, a pandas task). There is also a separate FPGA (Verilog) hardware OA - out of scope for the Python bank. The auto-graded problems are below.

Practice this round 8 problems Pro

Quant Trader / Dev / SRE

current

2020 -> 2026

5-problem coding OACodeSignal-style, ~5 problems5 problems

The recurring Virtu trader/dev bank, reused across the SRE OA too. Clean algorithmic problems where the gotchas are sorting, big-integer/overflow handling, and careful edge cases. All five are auto-graded below.

Maximum Apples That Fit in a BoxGreedy: sort the apples and take the smallest first until the box capacity is exhausted (watch the sort caveat).CodingEasySolve →Counting Substrings of Identical CharactersSum L(L+1)/2 over each maximal run of identical characters.CodingEasySolve →HexSpeak: Decimal to Speakable HexadecimalConvert to hex, map 0->O and 1->I, and accept only letters {A..F, I, O}; else report an error. Mind big numbers.CodingEasySolve →Minimum Steps to the Nearest Fibonacci NumberDistance from n to the closest Fibonacci number.CodingEasySolve →see all 5 problems →

Quantitative Strategist (PhD)

current

2024 -> 2026

4-problem strategist OA90 min, finance-flavored4 problems

The newer PhD strategist OA leans finance + modeling: a recursive/compounded basket (ETF) fair value, a most-profitable-trade scan, a max-heap 'eat half the heaviest' chocolates greedy, and a pandas dataframe task. The three pure-function problems are auto-graded below (the pandas school-count task is practiced live).

Minimum Total Weight After Halving ChocolatesEach day, halve (floor) the current heaviest chocolate via a max-heap; return the total weight after k days.CodingMediumSolve →Maximum Profit from Stock TradesBest single buy-then-later-sell profit over the price sequence.CodingMediumSolve →Fair Value of a Basket ETFRecursively value a basket whose holdings may themselves be baskets (memoize the holdings DAG).CodingMediumSolve →

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56 firmsEvery stageMust-do problems

HR / Behavioral Screen

20–30 min · phone Round guide →

Self-intro, 'why quant / why Virtu', and behavioral prompts (negative feedback, teamwork, conflict), then almost always 1-3 easy brain teasers at the end (clock angle, bridge crossing, dice expectation). Reportedly 'miss one and you're cut', so the teasers are a real gate.

Practice this round 10 problems →

#342 Clock Angle at 3:25seen 2019-12 brain-teaser easy #2481 Clock Angle at 5:15 and the Next Hand Overlapseen 2024-08 brain-teaser easy #69 Bridge and Lantern Crossing Optimizationseen 2019-10 optimization medium #343 Clock Hands Meeting After 5:00seen 2022-06 brain-teaser easy #58 Three Prisoners and Two Hat Colorsseen 2022-09 brain-teaser easy #70 Bridge and Torch with a Pairing Constraint optimization medium #628 Probability It Rains Both Daysseen 2022-11 probability easy #2486 Alice and Bob: The 20-Minute Early Pickupseen 2023-08 brain-teaser medium

Technical Phone (1–2 rounds)

~1 hr each · video Round guide →

Resume/research deep-dive plus probability, expectation, and statistics: the coin tails-then-heads game, frog jumps until the sum exceeds 1 (E = e), the handshake-grid expectation, P(≥60 heads in 100) via CLT, dependent-but-uncorrelated constructions. Quant strategists also get one coding round (e.g. Connect Four).

Practice this round 45 problems →

#161 CLT Approximation for Coin Flipsseen 2020-01 probability hard #2487 Expected Handshakes on a Dice-Rolling Gridseen 2025-02 expectation easy #2489 Expected Steps for a Uniform-Jump Frog to Exceed 1seen 2020-01 stochastic-process medium #2285 Expected Coins Remaining After Removing Heads-Tails Pairsseen 2020-01 expectation medium #432 Identifying a Two-Headed Coin After Ten Headsseen 2024-11 probability medium #1268 Expected Number of Connected Components in a Random Coloring expectation easy #2482 Probability of At Least Two Reds From a Mixed Urnseen 2025-07 probability medium #2483 Coin Game: T Tails Then T+1 Consecutive Headsseen 2021-03 probability hard

Onsite / Superday

Back-to-back rounds · opens with an IQ test Round guide →

Opens with a ~30-60 min IQ/logic test (50-60 figure-pattern and number-sequence questions, some GRE vocab and mental math), then resume + mixed probability/combinatorics/brain-teaser rounds, and a final modeling-heavy round with a team lead / regional head (a common rejection point). Traders may also get an arithmetic/mental-math test.

Practice this round 13 problems →

#3611 Finding the Three Fastest of 25 Horses in Seven Races brain-teaser medium #2480 Escaping a Circular Lake From a Faster Predatorseen 2020-01 brain-teaser hard #2491 Probability That Two Random Chords of a Circle Crossseen 2022-02 combinatorics easy #665 100 Sharks in a Rowseen 2022-06 brain-teaser medium #277 No Common Numbers Between Two Independent Drawsseen 2020-01 probability medium #18 Random Chord Length on a Unit Circleseen 2022-11 probability medium #497 Probability the Last Red Ball Is Drawn Earlyseen 2025-07 probability medium #1108 Counting Non-Decreasing Digit Stringsseen 2024-10 combinatorics medium

Final (Head / Team Lead)

Modeling-heavy Round guide →

A final round with a team lead or regional head, modeling-heavy and a common rejection point. Expect open-ended reasoning (infer which of two unknown strategies you're running; design a measurement scheme minimizing variance) plus fit.

Practice this round 13 problems →

#2488 Measuring Two Sticks to Minimize Varianceseen 2020-01 statistics medium #2496 Why a Stopped Coin Game Can Have Positive Expectationseen 2024-03 stochastic-process hard #1815 Tail Risk Comparison Across Risk Measuresseen 2022-03 statistics medium #2067 Ridge vs. Lasso Regression: Theory and Practiceseen 2021-02 regression medium #2498 Sequential Offers: Accept n, n+1, or n+2seen 2024-11 expectation medium #135 Random Walk Exit Time and Cover Time on a Cycleseen 2020-01 expectation hard #2493 Polya Urn: The Distribution Stays Uniformseen 2023-11 stochastic-process hard #2494 Finding the Minimum of a Unimodal Black-Box Functionseen 2023-11 optimization medium

The day before

Frozen OA: Fibonacci-steps, apples greedy, HexSpeak, score-stabilize, substring count
HR teasers reflexive: clock angle, bridge crossing, cube scaling, dice rerolls
Probability core: tails-then-heads finiteness, frog-jumps E=e, handshake grid, CLT
Onsite classics: 25 horses, chords cross 1/3, sharks survivors, drunkard's walk
IQ test: figure-pattern + number-sequence warm-up
Final: structured open-ended modeling + variance-reduction designs

Cheatsheet →

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Virtu Financial round-by-round guides

Virtu Financial interview guide: the firm, culture, roles and pay →

Stage guides for every firm: superdays · behavioral questions · market-making games

Virtu Financial interview — FAQ

What is the Virtu Financial interview process?

Virtu: '90%+ brain teasers' per juniors, plus probability; no trading game. A frozen coding OA (~5 problems for years) gates all; an HR screen with easy teasers ('miss one and you're cut'), probability/stats phone rounds, an onsite opening with an IQ/figure-pattern test. Slow HR/recruiting; HR/OA first, then team resume screens. The loop runs 5 stages: Online Assessment, HR / Behavioral Screen, Technical Phone (1–2 rounds), Onsite / Superday, Final (Head / Team Lead).

How many rounds does Virtu Financial have?

5 stages in total, starting with the Online Assessment and ending with the Final (Head / Team Lead).

How do I prepare for the Virtu Financial interview?

Work the stage notes above, then drill the Virtu Financial interview-questions set and the Virtu Financial online-assessment practice — each problem has a full worked solution.