How to Farm Valley Stock Bills

This guide explains how to earn and use Valley Stock Bills in Arknights: Endfield, including how to obtain them and the most effective ways to use them.

What is Valley Stock Bill

Exclusive Currency for Valley IV

Valley Stock Bill is a currency item exclusive to Valley IV.

Mainly obtained through outpost trading and similar activities, it is used for unlocking regional features, leveling up, and purchasing items.

Each Region Has Its Own Stock Bill

Stock Bills are region-specific and cannot be shared between regions. The Valley Stock Bill can only be used in Valley IV, while in Wuling, the setting of Main Story Chapter 2, you will need the Wuling Stock Bill.

How to Farm Wuling Stock Bills

How to Get Valley Stock Bills

Best Ways to Farm Valley Stock Bills

Trade AIC Products via Outpost Trading

In the Outpost Trade section under Menu → Regional Construction → Outpost Management, you can earn Valley Stock Bills based on unit prices by trading AIC Products. Each outpost has a limited stock of Stock Bills that gradually replenishes over time, so check back regularly.

Best Characters to Assign in Valley IV

Valley Pass	Originium Science Park	Power Plateau
Laevatain	Yvonne	Gilberta

Each character provides unique effects when dispatched to an outpost. If they match the outpost conditions, you can gain bonuses like increased Stock Bill earnings. Prioritize assigning characters that activate more effects to maximize efficiency.

Clearing Area Defense Improves Efficiency

Outposts trigger Area Defense events depending on their level. Clearing them improves Stock Bill Earning Efficiency. There are two types: clearing Operator Intervention gives a temporary boost, while clearing Auto-Defense permanently increases production efficiency.

Area Defense Guide

Buy and Sell Elastic Goods

Buying and selling elastic goods with daily fluctuations can net you a large amount of Stock Bills quickly. Buy low and sell high to maximize profit.

Elastic Goods - How to Make High Profit

Check Friends' Prices in Item Details

Select an Elastic Good → Check Friend's Prices to view your friends' listings. When selling, pick a target, travel to Dijiang, and use the Stock Redistribution Terminal in the Reception Room.

Complete Deliveries via Depot Node

You can also earn Stock Bills by completing deliveries from Depot Nodes. Each Depot Node allows one delivery per day, so make sure to use them regularly.

Accept Delivery Jobs for Extra Stock Bills

You can accept delivery jobs from other players up to 3 times per day. These are tracked separately from your own deliveries, letting you earn additional Stock Bills on top of your daily runs.

Packing Facility Guide

Defeat Enemies in Valley IV

You can earn a small number of Stock Bills by defeating enemies in Valley IV. The amount gained increases as your Exploration Level rises, making it a minor but consistent source.

How to Increase Exploration Level

Uses and Priority for Valley Stock Bills

Valley Stock Bill Exchange Priority

*All items can be obtained with long-term play

In the early to mid-game, your main priority is unlocking features. Once everything is unlocked, Stock Bills are mainly used for item exchanges.

The exchange lineup includes enhancement materials, Engraving Permits for Essence selection, and Operator Gifts for raising Trust. However, fully clearing the shop requires a large amount of Stock Bills, so spend carefully.

Unlock/Level Up Regional Features

Unlockable Features with Valley Stock Bills
Stock Redistribution Terminal	Unlocking enables Stock Redistribution Leveling up increases available products Stock Redistribution Terminal Locations
Depot Node	Unlocking increases regional storage and enables deliveries Leveling up further increases storage and unlocks higher-tier deliveries Depot Node Locations
Recycling Station	Unlocking lets you receive Aerospace Materials daily Leveling up increases both the quantity and the rarity of materials

Prioritize using Stock Bills to unlock and upgrade features first. In particular, the Stock Redistribution Terminal and Depot Node directly improve your Stock Bill income, so unlock and upgrade them as early as possible.

Expand Areas via AIC Steward

The AIC Steward near each AIC Area allows you to expand zones using Stock Bills. Unlocking the Depot Bus is especially valuable since it greatly expands your production capacity, making it a strong early investment.

Craft Character Gear

Valley Stock Bills are also required to craft Green to Purple Gear. Since Gear significantly boosts performance, focus on gearing up your main characters first.

Exchange Items at the Terminal

At the Stock Redistribution Terminal, you can exchange Valley Stock Bills for various items. In addition to upgrade materials, exclusive items like Operator Gifts and Valley Engraving Permits are also available.

Stock is divided into one-time and weekly reset items, and even identical items may have different prices depending on availability.

Exchange Items and Priority

Item	Priority/Description
Valley Engraving Permit	[Priority]★★★★★ Used for weapon Essence selection Prioritize buying weekly discounted stock (-50%) For full-price stock, exchange only when needed
Various Operator Gifts	[Priority]★★★★★ Used to raise character Trust Prioritize buying weekly discounted stock (-80%) Exchange full-price stock only when needed
Keen Valley Detector	[Priority]★★★★・ Used to detect Crates in Valley IV Buy weekly discounted stock if exploration is incomplete
Keen Valley Compass	[Priority]★★★★・ Used to detect Aurylene in Valley IV Buy weekly discounted stock if exploration is incomplete
Basic HH Permit	[Priority]★★★・・ One-time stock, exchange when you have extra Stock Bills
Valley Multi-Line Engraving Kit	[Priority]★★★・・ Grants one ideal Essence One-time stock, exchange when you have extra Stock Bills
Various Weapons	[Priority]★★★・・ One-time stock, exchange as needed
Sanity Usage Permit	[Priority]★★・・・ One-time stock and expensive Only improves farming efficiency, so optional
Various Enhancement Materials	[Priority]★★・・・ One-time stock and costly Best exchanged once you have surplus Stock Bills
Various Usable Items	[Priority]★・・・・ Combat support items Exchange only when needed
Various Documents	[Priority]★・・・・ Collectibles only No impact on progression
Various Decorations	[Priority]★・・・・ Purely cosmetic collectibles Very expensive, exchange only when you have excess Stock Bills

Related Arknights: Endfield Articles

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Currencies

Oroberyl	Origeometry	T-Creds
Valley Stock Bills	Wuling Stock Bills

Natural Resources

Aketine	Redjade Ginseng	Ferrium Ore
Sandleaf	Fillet	Fluffed Jincao
Thorny Yazhen	Amber Rice

Craftables & Others

Worn Key Card	Bumper-Rich	Steel Bottle
Wuling Artificing Catalyst	Cuprium Ore	Cuprium Component