"US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?" is a daily prediction market on Polymarket where traders buy and sell shares on whether USD/ZAR's price will finish higher ("Up") or lower ("Down") than its opening price over the daily window specified in the title. The current market probability is 100% for "Down." A price of 100% means the market collectively assigns a 100% chance to that outcome. Prices update in real-time as traders react to live USD/ZAR price movements. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?" is an active short-term market on Polymarket. Trading volume can accumulate quickly as the daily window progresses — jump in early to help set the odds before this window closes.

To trade on "US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?," decide whether you believe USD/ZAR's price at noon ET on August 21 will be higher ("Up") or lower ("Down") than USD/ZAR's price at noon ET on August 20. Buy "Up" if you think the price will rise day-over-day, or "Down" if you think it will fall. Enter your amount and click "Trade." If your chosen outcome is correct at resolution, each share pays out $1.00. If incorrect, shares are worth $0.

This daily window has closed and resolved. The final outcome was "Down." Use the time-range navigation bar at the top of this page to view adjacent windows or find the current live market.

The "US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?" market resolves based on a comparison of USD/ZAR's price at noon ET on August 21 versus noon ET on August 20, using Binance USDZAR/USDT 1-minute candle close prices. If the August 21 noon price is higher, the outcome is "Up"; if lower, "Down"; if equal, the market resolves 50-50. You can review the complete resolution criteria and data source in the "Rules" section on this page.

Yes. You don't need to trade to stay informed. Each "US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?" page shows real-time Up/Down probabilities reflecting trader sentiment on whether USD/ZAR will be higher or lower at noon ET tomorrow versus today. Use the date navigation features at the top of the page to browse past and upcoming daily windows. You can also view the Order Book and Activity tab for a real-time feed of trade flow.

Polymarket odds are set by real traders putting real money behind their beliefs. “US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?” is still building its trading base for this window, so the current Up/Down probabilities may reflect only a small number of trades. As more participants enter before the window closes, the odds will become increasingly robust. For the latest stats on Polymarket’s overall prediction accuracy, visit the accuracy page on Polymarket.

To place your first trade on "US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?," sign up for a free Polymarket account and fund it using crypto, a credit or debit card, or a bank transfer. Once your account is funded, return to this page — or navigate to the current active daily window using the navigation bar at the top of the page — select "Buy Up" or "Buy Down," enter your amount, and click "Trade." If the window shown in the title has already closed, use the navigation bar to find the current live window. If you're new to prediction markets, click the "How it works" link at the top of any Polymarket page for a quick step-by-step walkthrough.

On Polymarket, the price of each outcome represents the market's implied probability. A price of 100¢ for "Down" in the "US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?" market means traders collectively believe there is roughly a 100% chance that USD/ZAR's price will finish down over this daily window. If you buy "Down" shares at 100¢ and USD/ZAR finishes in that direction, you receive $1.00 per share — a profit of 0¢ per share. If USD/ZAR moves the other way, those shares are worth $0. Prices can shift throughout the day as USD/ZAR's price action unfolds toward the noon ET close.

This daily window closed at Noon ET August 21 and has been resolved. The final outcome was "Down." Use the navigation bar at the top of this page to view adjacent windows or find the current live market.

No comments yet for this daily window — check the "Activity" tab for a real-time feed of trades, or browse comments on other USD/ZAR Up or Down windows using the navigation bar above.

Polymarket is the world's largest prediction market, where you can stay informed and profit from your knowledge of real-world events. Traders buy and sell shares on outcomes for topics ranging from politics and elections to crypto, finance, sports, tech, and culture — including daily USD/ZAR direction markets like "US Dollar / South African Rand (USD/ZAR) Up or Down on August 21?." Prices reflect real-time, crowd-sourced probabilities backed by financial conviction, often providing faster and more accurate signals than polls, pundits, or traditional surveys.