# Stock Market Crash Guide: Arbitrage > Master the Elastic Goods Arbitrage in Arknights: Endfield to maximize your profit margins and farm millions of Stock Bills with zero combat required. Source: https://endfieldhub.org/blog/how-to-crash-the-stock-market-arknights-endfield-arbitrage Published: 2026-02-20 Updated: 2026-09-24 If you are constantly bottlenecked by a lack of Valley Stock Bills or Wuling Stock Bills, you are likely playing _Arknights: Endfield_ purely as an action RPG and ignoring its most powerful underlying mechanic: macroeconomics. _Endfield_ features a fully simulated, player-driven stock market known as **Stock Redistribution**. While casual players earn a trickle of income from basic Outpost trading and enemy drops, the endgame economy revolves entirely around **Elastic Goods Arbitrage**. By treating your factory as a hedge fund and exploiting price discrepancies across your friends’ servers, you can routinely achieve 900% to 1000% profit margins and farm millions of Stock Bills with zero combat required. Here is the exact daily trading loop to manipulate the market and maximize your profit margins. --- ## 1\. Unlocking the Stock Redistribution Market Before you can start day-trading, you need to gain access to the market terminals. * **Hit Authority Level 15:** The market is strictly gated behind this player level. * **Complete the Quest:** Finish the main mission _Paving the Way_ in Valley IV, which triggers the side quest _Restart Area Stock Redistribution I_. * **Authorize the Terminal:** Speak to the NPC **Lucky Carrot** near the Worker Dorms in the Hub. This unlocks your local Dijiang (Redistribution Terminal). **Crucial First Step:** Your Level 1 terminal only sells “Staple Goods” (permanent upgrade materials and Headhunting Permits). You must spend roughly 4,500 Valley Stock Bills to **upgrade the terminal to Level 2**. This unlocks the “Elastic Goods” tab, the highly volatile commodities where real wealth is generated. --- ## 2\. The Mechanics of Elastic Goods Unlike Stable Goods, Elastic Goods fluctuate wildly in price every single day at server reset. The base price for a standard Elastic Good is typically around 2,000 Stock Bills. The algorithmic market can crash this price down by 75% to 90% (dropping the asset to 300–500 Stock Bills) or artificially inflate the demand up by 250%+ (raising the price to 5,000+ Stock Bills). **The Golden Rule:** Never buy and sell in the same local market on the same day. --- ## 3\. The Arbitrage Strategy: Exploiting Your Friends List The secret to crashing the _Endfield_ economy lies in cross-regional arbitrage. Every player’s local market seeds different price fluctuations. Your local economy might be in a recession (extremely low prices), while a friend’s economy is experiencing a massive demand bubble. Here is the exact daily execution strategy: 1. **Check Local Discounts:** At daily reset, check your Elastic Goods. Look for assets heavily in the red (e.g., -60% to -80% below market value). 2. **Max Out the Purchase Limit:** Buy the absolute maximum daily limit of these crashed assets. Do not sell them to your own terminal. 3. **Scout the Network:** Open your inventory, select the Elastic Good you just hoarded, and click the **Friend’s Price** button. This opens a ledger showing the current buy price at every Dijiang terminal on your friends list. 4. **Execute the Dump:** Find a friend whose market is buying the asset at a massive premium (e.g., +150% to +200%). Click their profile picture to visit their base, walk up to their Redistribution Terminal, and dump your entire inventory into their economy. ### The Profit Mathematics If you buy an Elastic Good locally at a -75% discount (500 Stock Bills) and travel to a friend’s base where the demand is surging at +150% (5,000 Stock Bills), your profit calculation is simple: **(5000 - 500) / 500 = 900% Profit Margin** By upgrading your Stock Redistributor to Level 3 and Level 4 to increase your daily purchase caps, a single 5-minute daily arbitrage run can easily net you upwards of 1.5 million Stock Bills. --- ## 4\. The Real Meta: Expanding Your Network Because this system relies entirely on statistical variance, a small friends list severely limits your profit potential. The “meta” for _Endfield’s_ endgame economy is aggressively adding active players to your friends list. The larger your network, the higher the probability that at least one person is experiencing a massive price surge on the exact day you are holding cheap assets. Always keep 20% of your Stock Bills in liquid reserve. You never know when the market will crash, and you need capital ready to buy the dip.