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Stock Bills are one of the most important currencies in Arknights Endfield. You'll need them for almost everything, from buying weapons and gear to upgrading your factories and outposts. If you want to progress smoothly through the game, you need to know how to farm Stock Bills efficiently. This guide will show you the best ways on how to get Stock Bills fast in Arknights Endfield.
What Are Stock Bills in Arknights Endfield
Stock Bills are regional currencies in Arknights Endfield. Each major area has its own type. For example, Valley IV has Valley Stock Bills, while Wuling has Wuling Stock Bills. You can't use one region's Stock Bills in another region, so you'll need to farm them separately for each area you explore.
You'll use Stock Bills for lots of things, such as buying discounted Headhunt Permits for banners, upgrade factories, weapons, and operator gifts. You also need them to craft gear and upgrade important structures across the map.
Valley IV
Valley IV is your starting region. Here you'll learn all the basic systems for earning and spending Stock Bills. Focus on unlocking all the outposts in this region and getting them to at least level 2 or 3.
The Valley IV Stock Redistribution shop has weekly items you should always buy. Make sure you're checking it regularly and grabbing the discounted Headhunt Permits when they appear.
Wuling Region
Wuling unlocks later in the game and has its own separate Stock Bill system. Wuling has the Environmental Monitoring system. This gives you weekly photo quests that reward massive amounts of Stock Bills.

When you upgrade Environmental Monitoring to level 2, you unlock three weekly quests. Each one gives 250,000 Stock Bills. That's 750,000 Stock Bills per week just from these quests alone. This creates a huge boost that lets you upgrade all your Wuling systems quickly.
How to Farm Stock Bills Fast in Arknights Endfield
1. Trading With Outposts
The best way to get Stock Bills is by trading supplies with outposts. As you explore each region, you'll find multiple outposts that you can unlock and upgrade. These outposts will accept materials and supplies from you in exchange for Stock Bills and Outpost Prosperity.
Now there is steps on how to do this efficiently:
- First, upgrade your outposts whenever you can. Higher level outposts give you more Stock Bills per trade.
- Next, focus on producing tradeable items in your factory. Things like refined materials, potions, and processed goods work great for trading.


Check what each outpost wants and produce those items in bulk. Some outposts might want basic materials while others prefer refined products. Always trade items you have in excess rather than things you need for upgrading your own operators.
2. Defeating Enemies
Every enemy you defeat in Arknights Endfield has a chance to drop Stock Bills. This is a decent way to earn some extra currency, especially early in the game when you're exploring new areas and fighting lots of enemies anyway.

The drop rates aren't huge, but they add up over time. If you're grinding for other materials or completing story missions, you'll naturally collect Stock Bills from combat. Just don't rely on this as your main farming method because it's much slower than trading with outposts.
3. Using Stock Redistribution
Stock Redistribution is a special system that works like a dynamic marketplace. Prices for different supplies go up and down regularly. Here's the basic strategy to make profits from this method:
- Buy supplies when they're cheap (red downward arrow)
- Sell them when prices increase (green upward arrow)
- The prices change daily, so check back often to catch good deals.


Each player has different prices in their world. Add as many friends as you can, then visit their worlds to check their Stock Redistribution prices. You might find that an item you bought cheap in your world sells for much more in your friend's world. This is one of the fastest ways to build up Stock Bills once you understand how it works.


So, if you can, try to build a large friend list as much as you can. Send friend requests to random players or join Discord communities. The more friends you have, the more variations you will see.
4. Factory Production
Set up multiple production lines in your factory that focus on items you can trade to outposts. As you progress in the game, you'll want to shift to higher value items like potions.
Potions sell for way more Stock Bills than basic materials. Once you unlock the technology to mass produce them, dedicate several production lines to potion making. Not only are they useful for healing your team, but they're also one of the best items to trade for Stock Bills.
How to Use Stock Bills in Arknights Endfield
Priority Purchases
Your first priority should be items from the Stock Redistribution shop that reset weekly. These include important things like Headhunt Permits and operator upgrade materials. Since they refresh, you want to grab them before the reset or you'll miss out.

Next, focus on upgrading your outposts and factories. These are one-time purchases that permanently improve your income. The sooner you upgrade them, the faster you'll earn Stock Bills in the long run.
Weapons and Gear
Each region has a Weapon Store where you can buy weapons using Stock Bills. These weapons come in limited stock and each one has a fixed price. Some of these weapons are really useful for specific operators or situations, so browse the selection regularly.

You'll also need Stock Bills for Gear Assembly. This is where you craft gear pieces for your operators. Golden gear especially requires massive amounts of Stock Bills to both craft and upgrade. Start saving early because endgame gear farming eats through your Stock Bill reserves quickly.
Helpful Items
Stock Bills can buy you chest detectors and Aurylene detectors. These items mark the nearest chest or Aurylene location on your map when you use them. This is super helpful for completionists who want to find everything in each region.
You can also purchase operator gifts to increase your trust with specific operators. Higher trust gives small stat bonuses, though this isn't as critical as other purchases. Still, if you have Stock Bills to spare, it's a nice bonus.
One mistake that players make is spending Stock Bills too early on non-essential items. Those operator gifts and base decorations might look tempting, but they won't help you progress faster. Save your Stock Bills for upgrades that generate more income first!
So that's all you need to know about how to get Stock Bills fast in Arknights Endfield. They might seem like just another currency at first, but they're actually essential for your long-term progression. Use these strategies to farm them efficiently and you'll have everything you need to build the strongest team possible.



















