> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mobula.io/llms.txt
> Use this file to discover all available pages before exploring further.

# ✨ March 19, 2026 - Batch Holder/Trader Positions, HyperLiquid Bridge & Holders Stream Sort

> Batch mode for holder and trader positions, HyperLiquid bridge support, holders stream sortBy parameter, wallet balance cookbook

**TL;DR**: Holder and trader positions endpoints now support batch queries. The bridge adds HyperLiquid L1 and Arbitrum support. The holders WebSocket stream gains a `sortBy` parameter. A wallet balance tracking cookbook is added to the docs.

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## Batch Holder & Trader Positions

The `/2/token/holder-positions` and `/2/token/trader-positions` endpoints now support batch POST:

* Query positions for multiple tokens in a single request
* Available on both holder-positions and trader-positions endpoints

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## Bridge — HyperLiquid & Arbitrum

Cross-chain bridge expands to new chains:

* **HyperLiquid L1**: USDC → USDH bridging support
* **Arbitrum**: Added as a supported destination chain
* v1.2.0 with bytes32 chain IDs and HyperCore support

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## Holders Stream — sortBy Parameter

* New `sortBy` parameter on the holders WebSocket stream
* Top traders wired into the holders stream, sorted by PnL

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## Documentation

* **Wallet balance tracking cookbook**: Step-by-step guide with GitHub example repo
* **WebSocket throttling**: Clarified as interval-based, not budget-based
* **Fast-trade stream**: `maxUpdatesPerMinute` throttling documented
* **Holder/trader positions**: Batch POST support documented with examples
* Beta tag removed from auth tokens endpoint

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## Fixes & Improvements

* Pricer prevents overwriting TOP\_ASSETS prices via side-token discovery
* Transfer extractor preserves LP receivers cross-batch for bundler detection
* Billing excludes manual-payment customers from metered billing job

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*Shipped by Delox & Sacha*