What's the difference between minis and micros?

"Minis" (e.g. ES, NQ) are larger contracts where each point is worth more dollars, so P&L moves faster. "Micros" (e.g. MES, MNQ) are 1/10 the size — same instrument, gentler P&L swings, easier to start with. On TradeSport, 1 mini equals 10 micros toward your position-size limit.