Your account balance adjusted for the profit or loss on open trades.
Equity is what your account would be worth if you closed every open position right now. It equals your balance plus or minus any unrealised profit or loss.
Equity is the number that really matters, because margin calls and stop-outs are based on it — not on your starting balance.
The information on Trding.io is for general information only and is not investment advice. Trading involves a real risk of losing money, and most retail traders lose. Never trade money you cannot afford to lose.