Estimation Problems
for Trading Interviews
Master Fermi estimation and mental math for Jane Street, Optiver, IMC, and top trading firms. 6 full estimation walkthroughs with sanity checks.
$20 per month, billed yearly
Start Learning- 4,000+ Interview Questions
- 10+ Courses - DS, DE, MLE
- Detailed Solutions in Texts and Videos
- Created by Engineers at Meta and Google
- Lifetime Slack Community Access
About the Course
Trading firms use estimation questions to test whether you can think quantitatively under pressure, decompose ambiguous problems, and arrive at defensible numbers quickly. This course gives you a repeatable framework: anchor on known quantities, decompose into factors, multiply through, and sanity-check against benchmarks.
Start with The Playbook — a Fermi estimation framework tailored for trading interviews, plus mental math speed techniques (fast multiplication, percentage shortcuts, order-of-magnitude reasoning) that let you compute confidently without a calculator.
Then practice with 4 concept lessons covering estimation patterns, market sizing templates, financial quantity benchmarks, and bounding techniques, followed by 6 full estimation walkthroughs — from NYSE trading volume to gas station pricing — each with multiple decomposition paths and sanity checks.
Explore the Course
$20 per month, billed yearly
Start Learning- 4,000+ Interview Questions
- 10+ Courses - DS, DE, MLE
- Detailed Solutions in Texts and Videos
- Created by Engineers at Meta and Google
- Lifetime Slack Community Access