PolymarketCheck availabilityNo KYC2% feeVerified resolution dataWell calibratedCurrent implied probability
Up 54%+2.5pt
Market quality
45 / 100
Low quality24h Volume
—
Liquidity
$550.7
Low liquidityBid / Ask
53.0% / 55.0%
Spread
2.0 pt
Moderate spreadComments
0
Market data
Updated 9 minutes ago
Sep 18, 26, 12:01 PM UTCSep 21, 26, 8:00 PM UTC
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
What will Airbnb, Inc. (ABNB) hit in September 2026?
PolymarketWhat will Airbnb, Inc. (ABNB) hit Week of September 21 2026?
PolymarketEQT Energy Company (EQT) Up or Down - Daily
LimitlessAnthropic IPO Closing Market Cap
PolymarketS&P 500 ETF (SPY) Up or Down - Daily
LimitlessS&P close price end of 2026?
KalshiRules
This market will resolve to "Up" if the Close price for Airbnb, Inc. (ABNB) on September 21, 2026 is higher than the Close price for Airbnb, Inc. (ABNB) on the most recent prior trading day.
- This market will resolve to "Down" if the Close price for Airbnb, Inc. (ABNB) on September 21, 2026 is lower than the Close price for Airbnb, Inc. (ABNB) on the most recent prior trading day.
- E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.
- If the two specified closing prices are exactly equal, this market will resolve 50-50.
- Closing prices will be used exactly as published by Pyth, without rounding.
- If Airbnb, Inc. (ABNB) does not trade at all during the regular session, the market will resolve 50-50.
Open markets
EquitiesPOLYMARKETAnthropic IPO Closing Market Cap
- $2.0–$2.25T+1.1pt25%
- $2.25–$2.5T+5.0pt19.8%
- $1.75–$2.0T+0.5pt16.7%
+7 more outcomes
- Total Vol
- $870.1K
- 24h Vol
- $64.4K
POLYMARKETWill Anthropic’s valuation hit __ by December 31?
- ↑$1.25T+1.3pt100%
- ↑$1.1T+3.6pt100%
- ↑$1.0T+2.4pt100%
+10 more outcomes
KALSHIS&P price on Sep 21, 2026 at 10am EDT?
- 7,580 or above99%
- 7,590 or above96%
- 7,615 or above95%
+57 more outcomes
- Total Vol
- $13.5K
- 24h Vol
- $12.2K
KALSHIWill the S&P finish positive this year?
- Yes86%
- No14%
- Total Vol
- $1.1M
- 24h Vol
- $10.9K
POLYMARKETLargest IPO by market cap in 2026?
- Anthropic+1.4pt58.3%
- SpaceX-6.0pt40.6%
- OpenAI-0.1pt1%
+9 more outcomes
KALSHIS&P close price end of 2026?
- 7,800 to 7,999.99+1.0pt15.9%
- 8,000 to 8,199.99-3.0pt14.9%
- 7,600 to 7,799.99+2.0pt14.9%
+24 more outcomes
- Total Vol
- What will Airbnb, Inc. (ABNB) hit Week of September 21 2026?
- S&P 500 Daily Up/Down
- S&P 500 (SPX) Up or Down on September 21?
- What will Dominos say during their next earnings call?
- Nasdaq-100 close price end of 2026?
- Largest Company end of December 2026?
- Will OpenAI's valuation hit __ by December 31?
- S&P price on Sep 21, 2026 at 11am EDT?
- How high will the S&P get this year?
- What will AutoZone say during their next earnings call?
- STRC hits $100 by…
Frequently asked questions
- What are the current odds for Airbnb (ABNB) Up or Down on September 21??
- Polymarket prices Up at 54% as of September 21, 2026.
- When does Airbnb (ABNB) Up or Down on September 21? resolve?
- Airbnb (ABNB) Up or Down on September 21? is scheduled to resolve on September 21, 2026.
- How is Airbnb (ABNB) Up or Down on September 21? settled?
- Polymarket settles this market as follows: This market will resolve to "Up" if the Close price for Airbnb, Inc. (ABNB) on September 21, 2026 is higher than the Close price for Airbnb, Inc. (ABNB) on the most recent prior trading day.