#LAB 1. Position and Leverage: Reduce liquidation risk at the source

1. Position: Never exceed 10% of the principal
In such daily double-up level fluctuations, any full or heavy position is "naked running." Using less than 10% of funds for short-term trading, even if the direction is completely wrong, will not affect the overall account safety.

2. Leverage: Do not exceed 5x, prioritize 1-3x
High leverage = high probability of liquidation. In current volatile 5-minute level markets, leverage over 5x easily triggers "stop-loss sweeps." Low leverage can withstand short-term noise fluctuations, leaving room for judgment correction.

3. Prohibit combined contract and spot heavy positions
Do not go all-in on spot while holding heavy positions in contracts for long or short. In extreme market conditions, any unilateral surge or crash in either direction can cause simultaneous losses on both sides.

2. Opening positions and take profit/stop loss: Lock in rules firmly

1. Set stop loss before opening, then set take profit
Stop loss must be a fixed number before opening, not decided temporarily after floating losses. For ultra-short-term trading:
- Going long: use the nearest key support level (such as previous low, moving average) as stop loss; if floating loss reaches 3%-5%, exit unconditionally.
- Going short: use the nearest key resistance level (such as previous high, concentrated chips area) as stop loss; if floating loss reaches 5%-8%, exit.

2. Take profit: exit in batches, do not greed for the last bit
In extreme market conditions, "taking profits and securing gains" is the real profit. Recommendations:
- When reaching 50% of the expected profit, close half of the position.
- When reaching 80% of the expected profit, close the remaining half, leaving a tiny position to watch for further moves, using profits to seek higher gains.

3. No averaging down, no holding through
This is a taboo in ultra-short-term contract trading! If the direction is wrong, cut losses immediately and exit. Do not think about "averaging costs." In such markets, averaging down only deepens losses and ultimately leads to liquidation.