What are the maintenance margin and maintenance margin rate?
The maintenance margin rate is the minimum margin rate required by the user to maintain the current position.
When the available margin of the position is less than the maintenance margin, a forced liquidation to the position will happen.
Maintenance Margin = Open Price * Size * Maintenance Margin Rate
Available Margin = Initial Margin  PnL
Why are there tiered maintenance margin ratio rules?
In order to avoid market liquidity from being impacted by the forced liquidation of large positions, resulting in large losses from position penetration, Bitunix applies tiered maintenance margin ratio rules. The larger the user's position, the higher the maintenance margin rate, and the lower the maximum leverage times that the user can set.
How to calculate the user's position and view the corresponding tier of maintenance margin rate?
Under isolated margin mode, the positions in each direction of each contract are calculated separately for the number of contracts, the tier, and the required maintenance margin rate for the position;
Under cross margin mode, the positions in all directions of each contract are calculated together with the number of contracts, the tier and the required maintenance margin rate for the position.
Maintenance Margin Rate for each Contract
BTCUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
125x  6  0.40%  
100x  20  0.50%  
50x  50  1.00%  
20x  100  2.50%  
10x  200  5.00%  
5x  1,000  10.00%  
3x  2,000  15.00%  
2x  5,000  25.00%  
1x  10,000  50.00%  
ETHUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
100x  150  0.50%  
75x  300  0.65%  
50x  1,000  1.00%  
20x  3,000  2.00%  
10x  5,000  5.00%  
5x  10,000  10.00%  
3x  20,000  15.00%  
2x  50,000  25.00%  
1x  80,000  50.00%  
BNBUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  60  0.50%  
50x  100  0.60%  
40x  300  1.00%  
25x  1,000  2.00%  
10x  4,000  5.00%  
5x  10,000  10.00%  
3x  50,000  15.00%  
2x  80,000  25.00%  
1x  120,000  50.00%  
XRPUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  70,000  0.50%  
50x  40,000  0.60%  
40x  200,000  1.00%  
25x  600,000  2.00%  
10x  2,500,000  5.00%  
5x  10,000,000  10.00%  
3x  25,000,000  15.00%  
2x  35,000,000  25.00%  
1x  60,000,000  50.00%  
ADAUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  30,000  0.50%  
50x  60,000  0.60%  
40x  100,000  1.00%  
25x  600,000  2.00%  
10x  2,500,000  5.00%  
5x  12,000,000  10.00%  
3x  40,000,000  15.00%  
2x  200,000,000  25.00%  
1x  300,000,000  50.00%  
LTCUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  300  0.50%  
50x  700  0.60%  
40x  1,500  1.00%  
25x  4,000  2.00%  
10x  16,000  5.00%  
5x  60,000  10.00%  
3x  150,000  15.00%  
2x  250,000  25.00%  
1x  350,000  50.00%  
DOGEUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  500,000  0.60%  
40x  1,500,000  0.70%  
25x  6,000,000  1.00%  
20x  9,000,000  2.50%  
10x  18,000,000  5.00%  
5x  48,000,000  10.00%  
2x  180,000,000  25.00%  
1x  300,000,000  50.00%  
MATICUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  50,000  0.60%  
40x  100,000  0.70%  
25x  600,000  1.00%  
20x  900,000  2.50%  
10x  1,800,000  5.00%  
5x  4,800,000  10.00%  
2x  18,000,000  25.00%  
1x  30,000,000  50.00%  
SOLUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  5,000  1.00%  
25x  15,000  2.00%  
20x  30,000  2.50%  
10x  60,000  5.00%  
5x  150,000  10.00%  
2x  600,000  25.00%  
1x  1,200,000  50.00%  
DOTUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  5,000  0.65%  
40x  20,000  1.00%  
25x  50,000  2.00%  
10x  120,000  5.00%  
5x  250,000  10.00%  
3x  1,200,000  15.00%  
2x  5,000,000  25.00%  
1x  10,000,000  50.00%  
AVAXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  3,000  0.50%  
40x  5,000  0.65%  
30x  8,000  0.75%  
25x  30,000  1.00%  
20x  50,000  2.50%  
10x  100,000  5.00%  
5x  300,000  10.00%  
2x  1,000,000  25.00%  
1x  3,000,000  50.00%  
TRXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  500,000  0.65%  
25x  2,000,000  1.00%  
20x  6,000,000  2.00%  
10x  10,000,000  5.00%  
5x  25,000,000  10.00%  
3x  100,000,000  15.00%  
2x  200,000,000  25.00%  
1x  300,000,000  50.00%  
LINKUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  2,000  0.50%  
50x  4,000  0.60%  
40x  10,000  1.00%  
25x  30,000  2.00%  
10x  100,000  5.00%  
5x  600,000  10.00%  
3x  2,500,000  15.00%  
2x  3,000,000  25.00%  
1x  6,000,000  50.00%  
ATOMUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  2,000  0.60%  
25x  10,000  1.00%  
20x  50,000  2.50%  
10x  100,000  5.00%  
5x  300,000  10.00%  
2x  1,000,000  25.00%  
1x  1,800,000  50.00%  
ETCUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  800  0.50%  
50x  1,500  0.60%  
40x  4,000  1.00%  
25x  20,000  2.00%  
10x  100,000  5.00%  
5x  400,000  10.00%  
3x  1,000,000  15.00%  
2x  1,500,000  25.00%  
1x  2,500,000  50.00%  
UNIUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  5,000  0.60%  
25x  30,000  1.00%  
20x  160,000  2.50%  
10x  320,000  5.00%  
5x  850,000  10.00%  
2x  3,200,000  25.00%  
1x  5,500,000  50.00%  
XLMUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  150,000  1.50%  
25x  500,000  2.00%  
20x  2,000,000  2.50%  
10x  8,000,000  5.00%  
5x  17,000,000  10.00%  
2x  80,000,000  25.00%  
1x  150,000,000  50.00%  
ICPUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  10,000  1.00%  
20x  20,000  2.50%  
10x  100,000  5.00%  
5x  300,000  10.00%  
2x  1,100,000  25.00%  
1x  1,800,000  50.00%  
FILUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  10,000  0.60%  
25x  50,000  1.00%  
20x  120,000  2.00%  
10x  250,000  5.00%  
5x  600,000  10.00%  
3x  2,000,000  16.50%  
2x  4,000,000  25.00%  
1x  6,000,000  50.00%  
BCHUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  150  0.50%  
50x  300  0.65%  
40x  500  1.00%  
25x  2,000  2.00%  
10x  6,500  5.00%  
5x  12,000  10.00%  
3x  65,000  15.00%  
2x  130,000  25.00%  
1x  330,000  50.00%  
APTUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  5,000  1.00%  
25x  50,000  1.50%  
20x  100,000  2.00%  
10x  200,000  5.00%  
5x  550,000  10.00%  
2x  2,000,000  25.00%  
1x  3,500,000  50.00%  
ZECUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  1,500  1.00%  
20x  3,000  2.50%  
10x  5,000  5.00%  
5x  10,000  10.00%  
2x  45,000  12.50%  
1x  120,000  50.00%  
BATUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
20x  70,000  1.00%  
10x  150,000  2.50%  
8x  350,000  5.00%  
5x  800,000  10.00%  
2x  3,500,000  12.50%  
1x  17,000,000  50.00%  
DYDXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  10,000  0.65%  
25x  50,000  1.00%  
20x  180,000  2.50%  
10x  350,000  5.00%  
5x  900,000  10.00%  
2x  5,500,000  25.00%  
1x  9,400,000  50.00%  
ARBUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  20,000  0.65%  
25x  120,000  1.00%  
20x  450,000  2.50%  
10x  900,000  5.00%  
5x  2,400,000  10.00%  
2x  9,500,000  25.00%  
1x  15,000,000  50.00%  
APEUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  10,000  0.65%  
40x  20,000  0.75%  
25x  100,000  1.00%  
20x  200,000  2.50%  
10x  400,000  5.00%  
5x  1,000,000  10.00%  
2x  1,500,000  25.00%  
1x  3,000,000  50.00%  
LDOUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  10,000  0.60%  
25x  50,000  1.00%  
20x  120,000  2.50%  
10x  270,000  5.00%  
5x  680,000  10.00%  
2x  4,000,000  25.00%  
1x  6,750,000  50.00%  
CRVUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  80,000  1.00%  
20x  200,000  2.50%  
10x  400,000  5.00%  
5x  800,000  10.00%  
4x  1,200,000  12.50%  
2x  5,000,000  25.00%  
1x  10,000,000  50.00%  
MASKUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  5,000  1.00%  
25x  20,000  2.00%  
20x  150,000  2.50%  
10x  300,000  5.00%  
5x  800,000  10.00%  
2x  3,000,000  25.00%  
1x  5,000,000  50.00%  
VETUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  700,000  1.00%  
25x  3,000,000  2.00%  
20x  5,000,000  2.50%  
10x  10,000,000  5.00%  
5x  20,000,000  10.00%  
2x  50,000,000  25.00%  
1x  200,000,000  50.00%  
NEARUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  20,000  1.00%  
25x  100,000  2.00%  
20x  200,000  2.50%  
10x  500,000  5.00%  
5x  1,000,000  10.00%  
2x  5,000,000  25.00%  
1x  10,000,000  50.00%  
GRTUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  40,000  1.00%  
25x  100,000  2.00%  
20x  300,000  2.50%  
10x  3,000,000  5.00%  
5x  10,000,000  10.00%  
2x  60,000,000  25.00%  
1x  100,000,000  50.00%  
AAVEUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  /  1.00%  
50x  100  1.50%  
25x  200  2.00%  
20x  800  2.50%  
10x  6,000  5.00%  
5x  15,000  10.00%  
2x  100,000  25.00%  
1x  150,000  50.00%  
OPUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  10,000  1.00%  
25x  30,000  2.00%  
20x  300,000  2.50%  
10x  500,000  5.00%  
5x  1,500,000  10.00%  
2x  7,000,000  25.00%  
1x  15,000,000  50.00%  
EGLDUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  500  0.60%  
25x  1,000  1.00%  
20x  5,000  2.50%  
10x  20,000  5.00%  
5x  50,000  10.00%  
2x  100,000  25.00%  
1x 
200,000  50.00%  
ALGOUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  /  0.60%  
30x  100,000  1.66%  
20x  200,000  2.50%  
10x  500,000  5.00%  
5x  1,000,000  10.00%  
2x  5,000,000  12.50%  
1x  30,000,000  50.00%  
STXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  15,000  1.00%  
20x  80,000  2.50%  
10x  600,000  5.00%  
5x  2,000,000  10.00%  
2x  8,000,000  25.00%  
1x  12,000,000  50.00%  
SANDUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  20,000  0.60%  
25x  100,000  1.00%  
20x  500,000  2.50%  
10x  1,500,000  5.00%  
5x  4,000,000  10.00%  
2x  10,000,000  25.00%  
1x  20,000,000  50.00%  
EOSUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
75x  10,000  0.50%  
50x  20,000  0.60%  
25x  60,000  2.00%  
20x  800,000  2.50%  
10x  1,500,000  5.00%  
5x  6,000,000  10.00%  
2x  20,000,000  25.00%  
1x  30,000,000  50.00%  
SUIUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  20,000  1.00%  
25x  100,000  2.00%  
20x  500,000  2.50%  
10x  1,000,000  5.00%  
5x  3,000,000  10.00%  
2x  8,000,000  25.00%  
1x  15,000,000  50.00%  
WAVESUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  /  1.00%  
25x  4,000  2.00%  
20x  20,000  2.50%  
10x  200,000  5.00%  
5x  600,000  10.00%  
2x  1,200,000  12.50%  
1x  2,000,000  50.00%  
SNXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  2,000  1.00%  
20x  10,000  2.50%  
10x  120,000  5.00%  
5x  300,000  10.00%  
2x  1,500,000  25.00%  
1x  3,000,000  50.00%  
1x  30,000,000  50.00%  
MKRUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  5,000  0.60%  
25x  20,000  1.00%  
20x  200,000  2.50%  
10x  600,000  5.00%  
5x  1,500,000  10.00%  
2x  6,000,000  25.00%  
IMXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  7,000  1.00%  
20x  30,000  2.50%  
10x  500,000  5.00%  
5x  1,200,000  10.00%  
2x  5,000,000  25.00%  
1x  10,000,000  50.00%  
GALAUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  400,000  0.60%  
25x  2,000,000  1.00%  
20x  10,000,000  2.50%  
10x  30,000,000  5.00%  
5x  100,000,000  10.00%  
2x  200,000,000  25.00%  
1x  300,000,000  50.00%  
THETAUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  7,000  0.60%  
25x  60,000  1.00%  
20x  200,000  2.00%  
10x  500,000  5.00%  
5x  1,000,000  10.00%  
2x  3,000,000  12.50%  
1x  6,000,000  50.00%  
IMXUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  7,000  1.00%  
20x  30,000  2.50%  
10x  500,000  5.00%  
5x  1,200,000  10.00%  
2x  5,000,000  25.00%  
1x  10,000,000  50.00%  
1x  20,000,000  50.00%  
AXSUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  2,000  0.60%  
25x  6,000  1.00%  
20x  50,000  2.00%  
10x  120,000  5.00%  
5x  200,000  10.00%  
2x  1,000,000  25.00%  
1x  2,000,000  50.00%  
MANAUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  50,000  0.60%  
25x  100,000  1.00%  
20x  300,000  2.50%  
10x  500,000  5.00%  
5x  1,000,000  10.00%  
2x  3,000,000  12.50%  
1x  6,000,000  50.00%  
COMPUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x

400

1.00%  
20x

1,000

2.00%  
10x

4,000

5.00%  
5x

10,000

10.00%  
2x

30,000

25.00%  
1x

100,000

50.00%  
FTMUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  45,000  0.60%  
25x  200,000  1.00%  
20x  1,300,000  2.50%  
10x  4,500,000  5.00%  
5x  9,000,000  10.00%  
2x  40,000,000  12.50%  
1x  90,000,000  50.00%  
RUNEUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  2,500  1.00%  
25x  5,000  2.00%  
20x  15,000  2.50%  
10x  80,000  5.00%  
5x  160,000  10.00%  
4x  250,000  12.50%  
2x  450,000  25.00%  
1x  1,450,000  50.00%  
LINAUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
20x  500,000  2.00%  
15x  2,500,000  2.50%  
10x  20,000,000  5.00%  
5x  100,000,000  10.00%  
4x  150,000,000  12.50%  
2x  200,000,000  25.00%  
1x  300,000,000  50.00%  
TRBUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
20x  500  2.50%  
10x  5,000  3.00%  
8x  8,000  5.00%  
5x  12,000  10.00%  
2x  30,000  12.50%  
1x  50,000  50.00%  
WLDUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  6,000  1.00%  
25x  20,000  2.00%  
20x  35,000  2.50%  
10x  200,000  5.00%  
5x  1,000,000  10.00%  
2x  2,000,000  25.00%  
1x  3,000,000  50.00%  
BIGTIMEUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
20x  200,000  3.50%  
10x  400,000  5.00%  
8x  800,000  10.00%  
5x  1,600,000  12.50%  
2x  4,000,000  25.00%  
1x  6,000,000  50.00%  
INJUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
25x  500  2.00%  
20x  4,000  2.50%  
10x  20,000  5.00%  
5x  60,000  10.00%  
2x  120,000  25.00%  
1x  200,000  50.00%  
CAKEUSDT  Leverage  Maximum Amount of Contracts  Maintenance Margin Rate 
50x  4,000  1.50%  
20x  12,000  2.50%  
10x  40,000  5.00%  
5x  70,000  10.00%  
2x  150,000  25.00%  
1x  300,000  50.00% 