"Solana Up or Down - April 21, 12:00AM-4:00AM ET" is a 4-hour prediction market on Polymarket where traders buy and sell shares on whether Solana's price will finish higher ("Up") or lower ("Down") than its opening price over the 4-hour window specified in the title. The current market probability is 100% for "Up." 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 Solana price movements. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Solana Up or Down - April 21, 12:00AM-4:00AM ET" has generated $18.8K in total trading volume. Solana Up or Down markets attract active traders reacting to live price movements in real time — this level of activity helps ensure the current Up/Down odds are informed by a deep pool of market participants. You can track live prices and place a trade directly on this page.

To trade on "Solana Up or Down - April 21, 12:00AM-4:00AM ET," decide whether you believe Solana's price will finish above or below the opening "Price to Beat" of $85.19 by 4:00AM ET. Buy "Up" if you think the price will rise, 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. Because this market resolves in 4 hours, the window to exit your position before resolution is short — trade with that in mind.

This 4-hour window has closed and resolved. The final outcome was "Up." Use the time-range navigation bar at the top of this page to view adjacent windows or find the current live market.

The "Solana Up or Down - April 21, 12:00AM-4:00AM ET" market resolves based on whether Solana's price at the end of the 4-hour window is greater than or equal to its price at the start of that window — if so, the outcome is "Up"; otherwise it is "Down." The resolution source is the Chainlink SOL/USD data stream. You can review the complete resolution criteria and data source in the "Rules" section on this page. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and data sources that govern how this market is settled.

Yes. You don't need to trade to stay informed. Each "Solana Up or Down - April 21, 12:00AM-4:00AM ET" page shows the live "Price to Beat" ($85.19) (Solana's opening reference price for this window), the current live Solana price, and real-time Up/Down probabilities. Because each market window lasts 4 hours, individual pages resolve quickly — use the time-range navigation features at the top of the page to jump between windows and track how odds evolved across multiple intervals. 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. With $18.8K traded on “Solana Up or Down - April 21, 12:00AM-4:00AM ET,” the Up/Down probabilities reflect the collective judgment of traders watching Solana’s live price in real time. For 4-hour markets like this one, the odds represent an instantaneous crowd consensus on Solana’s price momentum — most meaningful as the window approaches its close, when traders have the most current price information available. For the latest stats on Polymarket’s overall prediction accuracy, visit the accuracy page on Polymarket.

To place your first trade on "Solana Up or Down - April 21, 12:00AM-4:00AM ET," 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 4-hour 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 "Up" in the "Solana Up or Down - April 21, 12:00AM-4:00AM ET" market means traders collectively believe there is roughly a 100% chance that Solana's price will finish up over this 4-hour window. If you buy "Up" shares at 100¢ and Solana finishes in that direction, you receive $1.00 per share — a profit of 0¢ per share. If Solana moves the other way, those shares are worth $0. Over a 4-hour window, prices shift as broader trends and market sentiment develop.

This 4-hour window closed at 4:00AM ET and has been resolved. The final outcome was "Up." Use the navigation bar at the top of this page to view adjacent windows or find the current live market.

The "Solana Up or Down - April 21, 12:00AM-4:00AM ET" market has 21 comments where traders share their analysis and react to live Solana price movements. Scroll down to the comments section to read what other participants think. You can also check the "Activity" tab for a real-time feed of trades on this window.

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 4-hour Solana direction markets like "Solana Up or Down - April 21, 12:00AM-4:00AM ET." Prices reflect real-time, crowd-sourced probabilities backed by financial conviction, often providing faster and more accurate signals than polls, pundits, or traditional surveys.