> For the complete documentation index, see [llms.txt](https://www.size.club/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.size.club/docs/compare/moon.md).

# Size vs Moon

Compare Size trading games with Moon leveraged market wagers: mechanics, prizes, leverage, and loss limits.

Size and Moon both let users act on market movements, but the activity and payout calculation differ. Size offers trading games using a virtual balance. Moon describes its product as leveraged wagers on market price movements.

## What changes?

|                | Size                                                            | Moon                                                                     |
| -------------- | --------------------------------------------------------------- | ------------------------------------------------------------------------ |
| What you enter | A trading game                                                  | A market wager                                                           |
| Main decision  | Manage virtual trades within the game's scoring and stage rules | Choose a market direction, stake, and leverage                           |
| Outcome        | The accepted game rules determine the result and selected prize | Price movement, leverage, and applicable charges affect the wager's P\&L |
| Multiplier     | Calculates the displayed cash prize                             | Multiplies market exposure relative to the stake                         |
| Loss           | A paid game entry can be lost                                   | Moon states losses are capped at the original wager                      |
| Game structure | Stages, rank, and eliminations in the standard solo format      | Moon's leverage guide describes a position and a max-loss price          |

## A Size prize multiplier is different from Moon leverage

For Size's published total-return example, a $10 entry at 2× pays $20 on a qualifying win, including the entry and before additional charges. It does not mean that the player has a $20 market position, or a 50% chance of winning.

On Moon, stake multiplied by leverage determines exposure. Moon's help centre describes an automatic close when a wager reaches its maximum loss. Leverage magnifies the effect of market moves; it does not describe a fixed game prize.

## Which experience fits?

Choose Size when you want a trading game with stage objectives, rank, and a defined result. Start with free practice to understand the format.

Moon may fit someone specifically seeking a leveraged directional market wager. Read its current product terms, applicable charges, and eligibility requirements before using it.

Neither comparison establishes that one product is safer, cheaper, or easier to win. Both paid game entries and market wagers can be lost.

## Try the Size format

[Start with free practice](https://www.size.club/docs/start/first-game), then read [the cash-prize rules](https://www.size.club/docs/cash-games/entry-and-prizes) if you want to explore paid play.

### Sources

Reviewed 22 October 2026. [Size game rules](https://www.size.club/docs/gameplay/game-rules) and [entry and prizes](https://www.size.club/docs/cash-games/entry-and-prizes); Moon's official [How Does Leverage Work?](https://help.moon.com/en/articles/15064402-how-does-leverage-work). No affiliate relationship, endorsement, or exclusivity is asserted.


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