> For the complete documentation index, see [llms.txt](https://mdexdoc.gitbook.io/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mdexdoc.gitbook.io/doc/yong-hu-zhi-nan/futures-trading/usds-m-perpetual-futures-contract-specifications.md).

# USDⓈ-M Perpetual Futures Contract Specifications

**Minimum notional value for USDⓈ-M Perpetual Futures contract orders:**

The minimum notional order value for any currency is 5 USDT. Orders with a notional value of less than 5 USDT will be rejected.

For example, based on the current market price, you can open a position worth 0.001 BTC since it has a notional value of >5 USDT. However, your order will be rejected if you try to open a position worth 1 ADA, which has a notional value of <5 USDT.

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Tips:

* Reduce-only orders will not be affected.
* Based on market conditions, ApolloX may adjust the minimum notional order value without prior notice.

**Important:** USDⓈ-M Perpetual Futures contracts on ApolloX are linear futures products that are quoted and settled in USDT, not inverse contracts.