# Copytrading and social trading

Copytrading and social trading apps usually require:

* finding high-signal traders to show to your users
* tracking live positioning and order updates of interesting accounts
* monitoring the fills and order updates of your copytraders

#### Finding high-signal traders

One of the potential ways to find high-signal traders on Hyperliquid is to use [perpSnapshot](/readme/rest-api/market-data/perpsnapshot.md)endpoint to find large positions on any market. These could be presented to your users later.

#### Tracking live positioning and orders

After your users have found and followed a set of initial traders, you would be able to get positioning updates from all these accounts by calling [batchClearinghouseStates](/readme/rest-api/user-position-data/batchclearinghousestates.md). You can also subscribe to multiple users' orders through [userOrderUpdates](/readme/websocket/userorderupdates.md)websocket.

#### Monitoring the fills and order updates of your users

You can monitor all fills of your users by subscribing to [builderFills](/readme/rest-api/historical-data/builderfills.md)websocket. Alternatively, you can query [builderFillsByTime](/readme/rest-api/historical-data/builderfillsbytime.md)API to get all fills done through your builder code.\
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Subscribing to [builderOrderUpdates](/readme/websocket/builderorderupdates.md)will allow you to monitor your users' addresses by tracking all orders of users utilizing your builder code.


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