TOTAL VOLUME:
$154.6b
24H VOL:
$323,326,361
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,969,435,260
419,363
Markets across
40,411
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 21, 5:45 PM EST
Polymarket
This market will resolve to "Positive" if total Bitcoin ETF flows on Tuesday, October 20, 2026 are greater than 0, and to "Negative" if they are less than 0. If flows are exactly 0, the market will resolve to 50-50. The resolution source is Farside Investors, specifically the ETF Flow tab available at https://farside.co.uk/btc/ in the "Total" column for the date specified in the title. The total flows will be considered finalized for that day once flows for all ETF providers have been published. If data for any ETF provider remains unpublished by 12 PM ET, 2 days after the date specified in the title, the market will resolve based on all available data published up to that time. If the resolution source becomes permanently unavailable or fails to publish any data by 12 PM ET, 2 days after the specified date, the market will resolve 50-50.
This market will resolve to "Positive" if total Bitcoin ETF flows on Tuesday, October 20, 2026 are greater than 0, and to "Negative" if they are less than 0. If flows are exactly 0, the market will resolve to 50-50. The resolution source is Farside Investors, specifically the ETF Flow tab available at https://farside.co.uk/btc/ in the "Total" column for the date specified in the title. The total flows will be considered finalized for that day once flows for all ETF providers have been published. If data for any ETF provider remains unpublished by 12 PM ET, 2 days after the date specified in the title, the market will resolve based on all available data published up to that time. If the resolution source becomes permanently unavailable or fails to publish any data by 12 PM ET, 2 days after the specified date, the market will resolve 50-50.
Currently, prediction market odds offer a unique perspective compared to traditional spot price expectations. While spot prices reflect immediate buying and selling pressure, this market aggregates informed speculation about future ETF flows. If analysts widely anticipate positive flows, we’d expect to see the ‘Yes’ outcome gain traction, increasing its probability. Conversely, skepticism about inflows would likely depress the odds. It's important to note that prediction markets can sometimes anticipate events before they are fully priced into spot markets.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of these shares directly reflects the implied probability of the ‘Yes’ outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s depth – indicated by the bid and ask sizes – shows how much conviction traders have at different price points. Higher volume at specific price levels suggests stronger agreement on the likelihood of that outcome.
This market resolves around Oct 20, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on whether the net flows into Bitcoin ETFs on October 20 are positive or negative. The data source used for determining net flows will be a widely recognized financial data provider, ensuring transparency and accuracy. Traders should monitor news and data releases leading up to this date to stay informed about potential catalysts.
Several signals could significantly impact this market. Major announcements from the SEC regarding Bitcoin ETFs, large institutional investments into Bitcoin, or unexpected macroeconomic events could all shift trader sentiment. Positive news about ETF adoption, such as increased trading volume or new fund launches, would likely drive up the probability of positive flows. Conversely, negative regulatory developments or a broader market downturn could decrease confidence in inflows, moving the market in the opposite direction.