TOTAL VOLUME:
$154.5b
24H VOL:
$271,200,656
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,922,627,141
420,368
Markets across
40,352
events
MATCHED EVENTS:
4,484
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 20, 6:55 AM EST
Polymarket
This market will resolve to "Positive" if total Bitcoin ETF flows on Monday, October 19, 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 If data for any ETF provider remains unpublished by 12 PM ET, 2 days after the date specified in the title, the market will resolve based on all available data published up to that time.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 Monday, October 19, 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 If data for any ETF provider remains unpublished by 12 PM ET, 2 days after the date specified in the title, the market will resolve based on all available data published up to that time.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.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing their belief about the outcome, and the price of these shares reflects the implied probability of the event happening. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price adjusts dynamically based on supply and demand, meaning that as more people buy shares, the price increases, and vice versa. This creates a real-time assessment of expectations, driven by the collective actions of market participants. The current price reflects the aggregated view of traders on Polymarket regarding the likelihood of Bitcoin ETF flows on October 19th.
This market resolves around Oct 19, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on whether there are significant Bitcoin ETF flows on October 19th, as determined by publicly available data. The exact definition of 'significant' is defined by Polymarket’s market rules, but it will generally involve a substantial volume of trading activity in Bitcoin ETFs on that date. Traders should consult the market's specific terms on Polymarket for the precise resolution criteria, but the process aims to objectively verify the outcome based on publicly accessible information.
Several signals or events could significantly impact this market before Oct 19, 2026. Any official announcements from the SEC regarding Bitcoin ETFs, positive or negative, would likely cause a substantial price movement. Unexpected macroeconomic data releases, particularly those related to inflation or interest rates, could also influence investor sentiment and affect trading activity. Furthermore, major news events impacting the broader cryptocurrency market, such as regulatory changes or security breaches, could indirectly influence the market. Finally, any shifts in institutional investor interest in Bitcoin ETFs could also drive changes in the odds.