Minimum Orders
Perpl keeps order minimums as low as the contract can represent. In short: there is no dollar minimum to place an order today, and you can always close your entire position, however small.
Three separate rules tend to get confused — the exchange checks them independently.
Minimum order size (always on)
Every order must be for at least one size unit of the market — the smallest amount the market can represent. This never changes.
BTC
0.00001 BTC
a few dollars
ETH
0.001 ETH
a few dollars
SOL
0.001 SOL
under a dollar
MON
1 MON
under a dollar
HYPE
0.01 HYPE
under a dollar
ZEC
0.0001 ZEC
under a dollar
One size unit is 1 divided by the market's size scale. "Roughly worth" is indicative and moves with price.
If a client or trading library blocks you at a larger size (for example "minimum 0.0005 BTC"), that limit is coming from that tool — not from Perpl. The exchange and the Perpl web app both use the one-unit floor above.
Minimum order value (currently $0)
Separately from size, the exchange can require a minimum dollar value per order. Today this is set to $0 on both mainnet and testnet, so it does not block anything. It exists so the exchange can raise the bar during heavy congestion or an order-book spam attack, and can be set anywhere from $0 up to about $164 per order.
When a minimum order value is in effect, it is measured on how much collateral value the order moves — not raw notional:
Opening (a new position, adding to one, or flipping sides): the initial margin for the new size (size × price ÷ leverage), plus any value freed by closing an opposite side in the same order.
Closing (reducing): the pro-rata fair value removed — the share of the position's collateral plus its profit or loss that the closed portion represents.
Closing your whole position is always allowed. A full close is exempt from the order-value minimum even if one is switched on — this is what lets you fully exit a tiny ("dust") position at any time.
Minimum to open an account (a deposit rule, not an order rule)
To create a new trading account you make a first deposit of at least $10 on mainnet ($100 on testnet). This is a one-time check when the account is first funded — not a per-order limit.
Current live settings
Minimum order size
1 unit per market
1 unit per market
Minimum order value
$0.00
$0.00
Minimum deposit to open an account
$10.00
$100.00
These values are owner-adjustable. Integrators should read them live rather than hard-code them — see the developer note in Networks & Configuration.
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