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Open any position from Portfolio. The position screen charts the market with your entry, the current price, any stop loss or take profit, and your liquidation price marked as lines, so you can see at a glance how much room the trade has. Below the chart, My Position shows your live profit and position value. Tap Modify to see four options: Add TP / SL, Add margin, Add to Long (or Add to Short), and Reverse.

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Add margin

Adding margin puts more USDC behind the position without changing its size. It gives the trade more padding against liquidation: on a long, the liquidation price drops; on a short, it rises.
1

Open the position

From Portfolio, tap the position.
2

Tap Modify, then Add margin

Enter the amount of USDC to add from your available balance.
3

Confirm

The new liquidation price is shown before you confirm.
Alpha uses isolated margin, which means:
  • Each position has its own margin. Adding margin to one position does not affect any other.
  • If a position is liquidated, you lose only the margin assigned to that position.
  • Margin can be added to an open position but not removed. To take margin out, close or partially close the position.
  • Your effective leverage is position size divided by margin, so adding margin lowers it.
Adding margin is the same as trading at lower leverage. If you find yourself adding margin often, consider opening the next trade at a lower multiplier instead.

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Add to a long or short

You can increase the size of an open position in the same direction.
1

Open the position

From Portfolio, tap the position.
2

Tap Modify, then Add to Long or Add to Short

Enter the additional margin. The new size is added at the position’s existing leverage.
3

Confirm

The order fills at the current market price, and your entry price becomes the weighted average of the two entries.
Leverage stays the same as the original position. If you opened a BTC long at 10x, any additional BTC long you add is also at 10x. To trade the same market at a different leverage, close the position first and reopen it. Your entry price changes. Adding $500 at $110 to a $500 position opened at $100 gives you a $1,000 position with a $105 average entry. Your liquidation price is recalculated and shown before you confirm.

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Add or change take profit and stop loss

From the position screen, tap Modify, then Add TP / SL. You can:
  • Add a take profit or stop loss to a position that has none
  • Move an existing level up or down
  • Remove a level entirely
Changes take effect immediately. Take profit and stop loss trigger on the mark price and close the position at market.

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What you cannot edit

  • Entry price. It is set when the order fills. Adding to the position changes the average, not the original fill.
  • Direction. Use Reverse to flip a position. See Closing an order.
  • Margin, downward. You can add margin but not withdraw it from an open position. Close part of the position to free some up.
  • Leverage, upward. Since margin cannot be removed, leverage can only go down (by adding margin) while a position is open. To trade at higher leverage, close and reopen.