LeetQuant
Get started free
Plans

Quant Trader Plan

· 21 days

A focused plan for trading-desk interviews (Optiver, IMC, SIG, Jane Street): fast mental math and estimation, probability and expected value, game theory, and options & Greeks — plus a light dose of quick coding. Mixed daily, so it all stays sharp. Skips the heavy stochastic-calculus and statistics theory researchers get drilled on.

Sign in to track your progress — each day checks off as you solve its problems.

1
Day 1

Brain teasers · Finance · Options

18
Coin Toss — Two Heads
ProbabilityJane Street
Easy2
Trailing Zeros in 100!
Brain TeasersGoldman SachsJ.P. Morgan
Easy107
Delta of an ATM Call
Options & GreeksOptiverIMC Trading
Easy90
Put-Call Parity
FinanceGoldman SachsMorgan Stanley
Easy
2
Day 2

Coding · Brain teasers · Options

19
Monty Hall
ProbabilityGoldman SachsMorgan Stanley
Easy64
Two SumLeetCode
Algorithms & NumericalGoogleDE Shaw
Easy5
Clock Hands at 3:15
Brain TeasersMorgan StanleyBarclays
Easy108
Delta of a Forward
Options & GreeksOptiverIMC Trading
Easy
3
Day 3

Brain teasers · Finance · Options

93
Zero-Coupon Bond Price
FinanceGoldman SachsPIMCO
Easy22
Flips Until First Head
ProbabilityOptiverIMC Trading
Easy6
Sum 1 to 100
Brain TeasersJane StreetGoldman Sachs
Easy110
Most Negative Put Delta
Options & GreeksGoldman SachsOptiver
Easy
4
Day 4

Brain teasers · Finance · Options

24
Two Dice Sum to 7
ProbabilityOptiverIMC Trading
Easy9
Last Digit of 2^100
Brain TeasersGoldman SachsMorgan Stanley
Easy94
Futures Fair Value
FinanceGoldman SachsOptiver
Easy112
Sign & Peak of Vega
Options & GreeksOptiverIMC Trading
Easy
5
Day 5

Probability · Coding · Brain teasers

29
Two Children
ProbabilityGoldman SachsMorgan Stanley
Easy73
Monte Carlo — Estimate π
Algorithms & NumericalGoldman SachsTwo Sigma
Easy13
Handshakes at a Party
Brain TeasersGoldman Sachs
Easy35
Expected Rolls for a Six
ProbabilityOptiverIMC Trading
Easy
6
Day 6

Brain teasers · Finance · Options

113
Delta Hedging
Options & GreeksOptiverCitadel Securities
Easy95
Duration & Price Sensitivity
FinanceGoldman SachsJ.P. MorganPIMCO
Easy3
Two Eggs, 100 Floors
Brain TeasersGoogleGoldman Sachs
Medium36
At Least One Six
ProbabilitySIG / SusquehannaOptiver
Easy
7
Day 7

Brain teasers · Finance · Options

116
How Dear Can a Call Be?
Options & GreeksJane StreetAkuna Capital
Easy96
Perpetuity Value
FinanceGoldman SachsJ.P. Morgan
Easy20
Roll Until All Six Faces
ProbabilityGoogleTwo Sigma
Medium4
Horse Race — Top 3
Brain TeasersGoogleTwo Sigma
Medium
8
Day 8

Coding · Brain teasers · Options

118
Find the Put from Parity
Options & GreeksGoldman SachsMorgan Stanley
Easy74
Newton’s Method for √2
Algorithms & NumericalGoldman SachsJane Street
Easy21
Birthday Problem
ProbabilityGoldman SachsCitadel
Medium7
100 Lockers
Brain TeasersGoogleTwo Sigma
Medium
9
Day 9

Finance · Options · Probability

97
Rule of 72
FinanceGoldman SachsMorgan Stanley
Easy119
Delta of a Deep ITM Call
Options & GreeksIMC TradingOptiver
Easy23
Drunk Passenger
ProbabilityJane StreetCitadel
Medium
10
Day 10

Brain teasers · Options · Probability

8
Poisoned Wine
Brain TeasersGoogleJane Street
Medium25
Bayes — Disease Test
ProbabilityGoldman SachsTwo Sigma
Medium121
Straddle Breakeven
Options & GreeksSIG / SusquehannaAkuna Capital
Easy
11
Day 11

Brain teasers · Finance · Probability

100
Coupon Equals Yield
FinanceGoldman SachsPIMCO
Easy10
Mislabeled Jars
Brain TeasersJane StreetOptiver
Medium26
Broken Stick Triangle
ProbabilityJane StreetCitadel
Medium
12
Day 12

Coding · Brain teasers · Options

83
Nim GameLeetCode
Algorithms & NumericalJane StreetSIG / Susquehanna
Easy122
Covered Call Max Profit
Options & GreeksMorgan StanleyIMC Trading
Easy11
Burning Ropes — 45 Minutes
Brain TeasersGoldman SachsMorgan Stanley
Medium
13
Day 13

Finance · Options · Probability

101
Current Yield
FinanceBarclaysMorgan Stanley
Easy27
Top Two Aces
ProbabilitySIG / SusquehannaOptiver
Medium109
Gamma Near Expiry
Options & GreeksOptiverIMC Trading
Medium
14
Day 14

Brain teasers · Finance · Probability

28
Hat Check
ProbabilityJane StreetDE Shaw
Medium14
Bridge Crossing
Brain TeasersGoogleJane Street
Medium104
Duration and a Rate Move
FinancePIMCOBlackRock
Easy
15
Day 15

Brain teasers · Options · Probability

111
Sign of Theta
Options & GreeksOptiverSIG / Susquehanna
Medium30
Expected Max of Two Dice
ProbabilityOptiverIMC Trading
Medium15
Ants on a Triangle
Brain TeasersGoldman SachsOptiver
Medium
16
Day 16

Coding · Options · Probability

65
Product of Array Except SelfLeetCode
Algorithms & NumericalTwo SigmaHRT
Medium31
Russian Roulette — Spin?
ProbabilityJane StreetCitadel
Medium114
Early Exercise of a Call
Options & GreeksGoldman SachsMorgan Stanley
Medium
17
Day 17

Brain teasers · Finance · Probability

106
Real Rate of Return
FinancePIMCOCitadel
Easy16
Water Jugs
Brain TeasersGoogle
Medium32
Expected Min of Two Dice
ProbabilityOptiverSIG / Susquehanna
Medium
18
Day 18

Brain teasers · Finance · Options

115
Delta of an ATM Straddle
Options & GreeksOptiverIMC TradingSIG / Susquehanna
Medium17
Three Switches
Brain TeasersGoldman SachsMorgan Stanley
Medium91
Black-Scholes ATM Call
FinanceGoldman SachsMorgan Stanley
Medium
19
Day 19

Brain teasers · Options · Probability

33
Poisson — No Arrivals
ProbabilityTwo SigmaJump Trading
Medium117
Value of a Box Spread
Options & GreeksOptiverCitadel Securities
Medium1
Screwy Pirates
Brain TeasersJane StreetOptiver
Hard
20
Day 20

Coding · Finance · Probability

67
Kth Largest ElementLeetCode
Algorithms & NumericalTwo SigmaDE Shaw
Medium34
Exponential Survival
ProbabilityDE ShawMorgan Stanley
Medium92
Risk-Neutral Probability
FinanceGoldman SachsJ.P. Morgan
Medium
21
Day 21

Brain teasers · Options · Probability

120
Worst Case with a Protective Put
Options & GreeksBarclaysJ.P. Morgan
Medium12
12 Balls, One Odd
Brain TeasersCitadelJane StreetTwo Sigma
Hard37
Expected Max of Two Uniforms
ProbabilityJane StreetCitadel
Medium