HTX to Adjust Risk Management Parameters for Some USDT-M Futures in Single-Asset and Multi-Assets Collateral Modes

Dear HTX Users,

To provide users with a better trading experience and reduce market risks, HTX will adjust the maximum leverage and position limits in the Single-Asset Collateral mode and leverage tiers and margin rates in the Multi-Assets Collateral mode for the following perpetual futures on September 12, 2025, at 09:00 (UTC). See below for the adjustment details:

1. Maximum leverage adjustments in the Single-Asset Collateral mode:

Symbol	Maximum Leverage (before)	Maximum Leverage (after)
POLUSDT	50	20
THETAUSDT	25	30
MANAUSDT	25	30
GRTUSDT	25	30

2. Position limit adjustments in the Single-Asset Collateral mode:

AIOUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	200,000	100,000
≥6	100,000	50,000
≥11	25,000	10,000
CUDISUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	200,000	100,000
≥6	100,000	50,000
≥11	25,000	10,000
WCTUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	200,000	100,000
≥6	100,000	50,000
≥11	25,000	10,000
POLUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	500,000	200,000
≥6	250,000	100,000
≥11	100,000	25,000
≥21	50,000
≥31	25,000
BTCUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	60,000,000	60,000,000
≥6	30,000,000	30,000,000
≥11	20,000,000	20,000,000
≥21	15,000,000	15,000,000
≥31	10,000,000	10,000,000
≥51	18,000,000	8,000,000
≥76	3,600,000	3,600,000
≥101	600,000	600,000
≥126	500,000	500,000
≥151	500,000	450,000
≥176		400,000
ETHUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	40,000,000	40,000,000
≥6	20,000,000	20,000,000
≥11	15,000,000	15,000,000
≥21	10,000,000	10,000,000
≥31	6,000,000	6,000,000
≥51	18,000,000	5,000,000
≥76	3,600,000	3,600,000
≥101	600,000	600,000
≥126	500,000	500,000
≥151	500,000	450,000
≥176		400,000
ETCUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	2,000,000	2,000,000
≥6	1,000,000	1,000,000
≥11	250,000	250,000
≥21	250,000	200,000
≥31	50,000	50,000
≥51	10,000	10,000
FILUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	300,000	400,000
≥6	1,000,000	300,000
≥11	250,000	250,000
≥21	100,000	100,000
≥31	50,000	50,000
≥51	10,000	10,000
LTCUSDT perpetual futures:
Leverage	Position Limit in USDT (before)	Position Limit in USDT (after)
≥1	5,000,000	5,000,000
≥6	1,000,000	1,000,000
≥11	250,000	300,000
≥21	250,000	250,000
≥31	50,000	50,000
≥51	10,000	10,000

3. Leverage tier and margin rate adjustments in the Multi-Assets Collateral mode:

AIOUSDT perpetual futures:
Tier	Leverage	Position Limit In Cont (before)	Position Limit In Cont (after)	Maintenance Margin Rate
1	20	25,000	10,000	2.00%
2	10	100,000	50,000	3.00%
3	5	200,000	100,000	4.00%
CUDISUSDT perpetual futures:
Tier	Leverage	Position Limit In Cont (before)	Position Limit In Cont (after)	Maintenance Margin Rate
1	20	25,000	10,000	2.00%
2	10	100,000	50,000	3.00%
3	5	200,000	100,000	4.00%
WCTUSDT perpetual futures:
Tier	Leverage	Position Limit In Cont (before)	Position Limit In Cont (after)	Maintenance Margin Rate
1	20	6,200	3,000	2.00%
2	10	25,000	16,000	3.00%
3	5	50,000	33,000	4.00%
MUBARAKUSDT perpetual futures:
Tier	Leverage	Position Limit In Cont (before)	Position Limit In Cont (after)	Maintenance Margin Rate
1	20	12,000	80,000	2.00%
2	10	50,000	320,000	3.00%
3	5	100,000	640,000	4.00%
MYXUSDT perpetual futures:
Tier	Leverage	Position Limit In Cont (before)	Position Limit In Cont (after)	Maintenance Margin Rate
1	20	1,600	140	2.00%
2	10	6,500	570	3.00%
3	5	13,000	1,100	4.00%
THETAUSDT perpetual futures:
Tier	Leverage	Position Limit In Cont (before)	Position Limit In Cont (after)	Maintenance Margin Rate
1	30	820	3,000	0.83%
2	20	4,100	12,000	1.25%
3	10	16,000	23,000	2.00%
4	5	24,000	60,000	4.00%

Please note:

• Existing positions opened before the update will be affected;

Thank you for your continued support!

HTX Team

Sep 12, 2025

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HTX reserves the right in its sole discretion to amend or change or cancel this announcement at any time and for any reasons without prior notice. The above is for information purposes only and HTX makes no recommendations or guarantees in respect of any virtual asset, product, or promotion on HTX. Prices of virtual assets are highly volatile and trading virtual assets involves risk. Please read our Risk Reminder text here.