Where it starts
On a 25 SOL account, at 17.5 SOL: 30% below the opening balance. On 50 it is 35, on 100 it is 70. An Instant Funded account uses 20% instead, so a 25 SOL instant account opens with its line at 20.
When it moves
At 00:00 UTC, once per day. It is recalculated as your best closed balance so far minus the same trailing amount. If that number is higher than where the line currently sits, the line rises to it. If it is lower, nothing happens: the line never falls.
Closed balance, not peak equity
The line follows your balance at the daily close, counting SOL held plus open coins at what you paid for them. An unrealised spike during the day does not lift it, which matters: a coin that doubles and retraces leaves the line exactly where it was, rather than ratcheting it up behind you.
Where it stops
At your starting balance, permanently. Once your best close has risen far enough that the trailing calculation reaches 25 SOL on a 25 SOL account, the line fixes there and stops following. From that point, everything above your starting balance is genuinely your buffer, and the account cannot be put into a position where a profitable run has moved the fail point above where you began.
What it is measured against
Live equity, every 30 seconds: SOL held plus open coins at their current price. This is the asymmetry worth internalising. The line rises on closed value once a day, but it is tested against live value continuously, so a position falling at 3am can end an account whose daily closes all looked healthy.
Questions people ask
Does a payout move the line?
No. It stays where it is, so a payout reduces the gap between balance and line.
Is there a daily loss limit as well?
No. The trailing line is the only loss rule.
Does the line reset on a funded account?
A funded account starts its own line at its own starting balance.