Some traders require a minimum balance before you can follow them. You see this requirement on the Leaderboard and again in the subscribe screen.
Look for a Min. X USD note under the action button on a trader’s row (for example, Min. 50 USD). It means your investment account must hold at least that amount to subscribe — and must stay at or above it to keep the subscription.
Fund first
If your account is below the minimum, fund it before subscribing — see Fund an account quickly. Masters set this value themselves (see Set a minimum deposit).
