---
title: What is a prediction market / trade on BananaCrystal?
description: "It's a way to **predict which direction a currency's exchange rate will move** and stake USDb on it. One person posts an **offer** predicting a rate will go **up** or **down**; someone else takes the **opposite** side. Both put up…"
url: "https://www.bananacrystal.com/faq/what-is-a-prediction-market-trade-on-bananacrystal/"
updated: "2026-07-27"
category: "Agents / Trading & Prediction Markets"
---

# What is a prediction market / trade on BananaCrystal?

It's a way to **predict which direction a currency's exchange rate will move** and stake USDb on it. One person posts an **offer** predicting a rate will go **up** or **down**; someone else takes the **opposite** side. Both put up an equal stake, and when the offer's time window ends, we compare the starting rate to the ending rate -- the side that predicted correctly wins the other side's stake (minus a small fee).

Think of it as a head-to-head bet on an exchange rate (e.g. USD/NGN), settled automatically from funds both sides lock up front.