Effective June 27, 2025, at 15:00 (GMT+8), HTX will implement adjustments to the position limits under single-collateral margin mode and update the leverage tiers and maintenance margin requirements under cross-margin mode for select USDT-margined perpetual contracts. These changes aim to enhance market stability, strengthen risk management protocols, and ensure a more secure trading environment for all users.
This article provides a comprehensive overview of the upcoming modifications, explains their implications for traders, and offers strategic insights to help you adapt your trading approach accordingly.
Understanding the Position Limit Adjustments
HTX has revised the maximum allowable position sizes for several USDT-margined perpetual contracts under single-collateral margin mode. These adjustments vary by asset and leverage level, generally reducing exposure thresholds across multiple tiers.
Key Changes by Asset
XLM (Stellar) USDT-Margined Perpetual
- At 1x–5x leverage: Position limit reduced from $800,000 to $400,000
- At 6x–10x: Lowered from $400,000 to $200,000
- At 11x and above: Cut in half from $100,000 to $50,000
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COOKIE USDT-Margined Perpetual
- Base tier (1x–5x): Down from $200,000 to $100,000
- Mid-tier (6x–10x): Halved from $100,000 to $50,000
- High-leverage (11x+): Reduced from $25,000 to $10,000
CATI, BIO, ARC, and BIGTIME Contracts
All assets see proportional reductions:
- CATI: Max position drops from $500,000 to $300,000 at base leverage
- BIO & ARC: Both decrease from $200,000 to $100,000 at 1x–5x
- BIGTIME: Highest tier (≥31x) remains unchanged at $5,000; others reduced across the board
These reductions reflect a broader industry trend toward conservative risk exposure, particularly for less liquid altcoin derivatives.
Cross-Margin Mode: Updated Leverage and Maintenance Margin Tiers
In addition to position caps, HTX is overhauling the cross-margin mode structure for the same suite of contracts. This affects how much leverage users can apply based on total position size and alters maintenance margin rates—critical factors in liquidation risk.
Tiered Adjustments Overview
XLM Perpetual Contract
| Tier | Max Leverage | Previous Limit (Contracts) | New Limit | Maintenance Margin Rate |
|---|---|---|---|---|
| 1 | 20x | 30,000 | 16,000 | 2.50% |
| 2 | 10x | 120,000 | 80,000 | 3.50% |
| 3 | 5x | 240,000 | 200,000 | 4.00% |
Notable shift: Higher maintenance margin required at lower position thresholds.
COOKIE Perpetual Contract
- Tier 1 (20x): Position cap reduced from 12,500 to 10,000 contracts
- Tier 2 (10x): Drops significantly from 50,000 to 29,000
- Maintenance margins remain consistent across tiers
BIO Perpetual Contract
Unusual upward adjustment:
- Tier 2 increases from 81,000 to 100,000 contracts
- Tier 3 jumps from 160,000 to 200,000
- Indicates increased confidence or liquidity improvements in BIO markets
ARC Perpetual Contract
Significant expansion:
- Tier 1 soars from 21,000 to 100,000 contracts
- Tier 3 expands nearly fourfold to 750,000
- Suggests growing institutional interest or deeper order book depth
BIGTIME Perpetual Contract
Mixed results:
- Tier 1 rises slightly from 79,000 to 97,000
- Tiers 2–5 all experience reductions
- Maintenance margin increases with each tier up to 4.0%
This pattern suggests targeted risk control on large positions despite initial tier expansion.
Why Are These Changes Happening?
Exchanges like HTX regularly refine contract parameters to respond to evolving market dynamics. Key drivers behind these updates include:
- Risk Mitigation: Smaller position caps reduce systemic exposure during high-volatility events.
- Market Maturity: As certain altcoins gain traction (e.g., ARC), exchanges adjust limits to reflect improved liquidity.
- Regulatory Preparedness: Proactive tightening aligns with global trends toward stricter crypto derivatives oversight.
- User Protection: Higher maintenance margins lower liquidation risks for leveraged traders.
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Frequently Asked Questions (FAQ)
Q: Will my current open positions be closed automatically?
A: No. Open positions will not be forcibly closed. However, you will not be able to increase your position beyond the new limits. Any additional entries that exceed updated caps will be rejected.
Q: How do these changes affect my liquidation price?
A: With higher maintenance margin rates (especially in cross-margin mode), your effective liquidation price may move closer to the entry point. Use a margin calculator to reassess your risk exposure.
Q: Can I switch between single-collateral and cross-margin modes?
A: Yes, but only when no active positions exist in the selected contract. Plan mode switches during low-volatility periods to avoid execution delays.
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Q: Are these changes permanent?
A: While HTX does not specify duration, such adjustments are typically long-term. The exchange reserves the right to modify terms again based on market conditions.
Q: Why did some assets see increased limits while others decreased?
A: Increases often correlate with rising trading volume and deeper liquidity pools (e.g., ARC). Decreases usually target lower-volume or higher-volatility assets to prevent excessive speculation.
Q: Does this impact isolated margin settings?
A: Yes—these updates directly affect both single-collateral (isolated) and cross-margin configurations. Review both modes if you use either strategy.
Strategic Implications for Traders
For High-Leverage Traders
Reduced position caps mean amplified sensitivity to price swings. Consider:
- Lowering average leverage usage
- Diversifying across more stable large-cap pairs
- Using stop-loss orders more rigorously
For Algorithmic and Bot Traders
Ensure your trading bots are updated before June 27:
- Adjust maximum order size parameters
- Recalibrate leverage settings per tier
- Test in sandbox environments if available
For Portfolio Managers
Reassess allocation strategies for altcoin derivatives:
- Rebalance exposure across multiple exchanges
- Monitor funding rates post-adjustment for arbitrage opportunities
- Evaluate whether hedging strategies need refinement
Final Notes and Recommendations
HTX’s adjustments underscore the importance of staying informed about exchange-specific rules that can materially impact trading performance. Always:
- Regularly review contract specifications
- Track official announcements
- Simulate trades under new conditions before going live
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While this update introduces tighter constraints on certain assets, it also signals maturing infrastructure and stronger risk governance—positive signs for sustainable growth in the digital asset ecosystem.
Remember: Effective risk management isn't just about avoiding losses—it's about building resilience in unpredictable markets.