Demo Trader
@demo-trader
Training for quant interviews, one drill at a time.
Quant TradingJoined Jun 13, 2026
QuantOS Rating
800
Foundation200 pts to next tier
Getting started. Solve problems and complete arena rounds to advance.
Problems solved
0
Mental math best
0
Mental math rating
1000
Training rating
Market making rating
1000
Training rating
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Training ratings are QuantOS-internal measures of personal progress, not percentiles or official assessments. 0 mental rounds completed across 5 modes.