Parity Zetamac
Sharpen quick arithmetic and parity-style pattern recognition for timed quant rounds.
Open exercise →Train like a quant trader.
Short, focused drills built from the games traders run on the desk. Mental math, market-making judgment, price intuition — practice the way real trading floors train.
Most quant prep is built around reading explanations. The actual work of trading is making decisions: fast when speed matters, careful when it doesn't, repeatedly until the patterns are reflex.
TraderPrep mirrors what we did between desks — speed math when arithmetic was the bottleneck, market-making drills when judgment was, price-movement calls when intuition was. Some exercises are timed. Some aren't. The point is the reps.
Featured drills
Arithmetic Zetamac
Run the original arithmetic Zetamac drill — addition, subtraction, multiplication, and division on a timer.
Open exercise →Trade or Tighten
Practice deciding when to trade and when to tighten quotes as conditions shift.
Open exercise →Options Mock
Build market feel by making repeated calls on price movement and immediate feedback.
Open exercise →Built by traders
TraderPrep is built by ex-SIG traders. The exercises started as games we ran with each other between trading sessions — short rounds that sharpened the specific skill we needed for the next one.
We never found anything like them outside the desk, so we built this. More drills land as we think of them.