Bitcoin Up or Down - October 19, 9:45PM-10:00PM ET
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Bitcoin Up or Down - October 19, 9:45PM-10:00PM ET
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AI Analysis
Trader mode: Market mechanics, assumptions and risks
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Reported volume · provider units
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Saved contracts
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Reviewed equivalent pairs
Source snapshot: Oct 19, 2026, 3:00 AM UTC
About This Event
This market will resolve to "Up" if the time-weighted average price (TWAP) of Bitcoin, generated by Chainlink, of the time range specified in the title is greater than or equal to the price at the beginning of that range. Otherwise, it will resolve to "Down". The resolution source for this market is information from Chainlink, specifically the BTC/USD TWAP data stream available at https://data.chain.link/streams/btc-usd-twap-60s-streams. Please note that this market is about the price according to the TWAP Chainlink data stream for the asset pair BTC/USD, not according to any other sources or spot markets.
Snapshot observed 2026-10-19T03:00:06.086Z. This analysis describes that snapshot and is not a live news update.
What the contract measures
This market is titled "Bitcoin Up or Down - October 19, 9:45PM-10:00PM ET" [1]. The provider states that it "will resolve to "Up" if the time-weighted average price (TWAP) of Bitcoin, generated by Chainlink, of the time range specified in the title is greater than or equal to the price at the beginning of that range." Otherwise, it resolves to "Down" [1].
The resolution source is the Chainlink BTC/USD TWAP data stream. The rules say the market concerns "the price according to the TWAP Chainlink data stream for the asset pair BTC/USD, not according to any other sources or spot markets" [1]. A reader comparing this contract with a Bitcoin contract on another platform should check whether that contract uses the same data source, averaging method, and time window.
The listed end time is 2026-10-20T02:00:00.000Z [1]. The title refers to 10:00PM ET, so the listed time and the title should be read together, with attention to the time zone conversion.
Reading the snapshot
The provider observation time is 2026-10-19T03:00:06.086Z, and the source was retrieved at 2026-10-19T04:20:11.864Z [1]. These are separate timestamps, roughly 80 minutes apart. The record shows the market as "active" at observation [1]. This is a saved snapshot from a past moment, not a live reading.
The saved sample includes one market with two outcomes: Up at 0.505 and Down at 0.495 [1]. These are snapshot prices. They are not executable quotes or verified probabilities. The two prices sum to 1.00 in this record, and the Up price is 0.01 higher than the Down price. The evidence does not explain why the prices stand where they do, and it does not report trading volume or the number of participants.
What remains uncertain
The coverage record lists one total market and one included market, with no partial sample [1]. This describes the saved Polymarket event only. It does not establish that the provider lists every possible outcome for this window, and no other platform's contract appears in this sample, so no cross-platform comparison is supported.
The evidence does not include the Bitcoin price at the start of the window or the TWAP during it, so it cannot say how the contract will resolve. It also contains no prices after the retrieval time, so the current state of the market is unknown from these materials.
References
- Polymarket: Bitcoin Up or Down - October 19, 9:45PM-10:00PM ET. Provider data observed 2026-10-19T03:00:06.086Z.
AI-generated analysis based on market data. Not financial advice.
Saved Oct 19, 2026 UTCOverview
This contract is a short-window price direction market on Bitcoin, listed on Polymarket under the title "Bitcoin Up or Down - October 19, 9:45PM-10:00PM ET" [1]. Its two outcomes are "Up" and "Down." The market is not a general forecast of Bitcoin's price. It asks only whether one specific fifteen-minute window ends higher or lower than it began, as measured by a defined data feed. According to the provider's rules, the market resolves to "Up" if the time-weighted average price (TWAP) of Bitcoin over the time range in the title is greater than or equal to the price at the start of that range. Otherwise it resolves to "Down" [1]. The price used is the Chainlink BTC/USD TWAP data stream, which the provider names as the resolution source [1]. The rules state that other sources and spot markets do not determine the outcome [1]. A contract on the same asset that used a different data feed or a different averaging method could resolve differently. The listed end time is 2026-10-20 02:00 UTC [1]. That corresponds to 10:00PM Eastern Time on October 19, the close of the window named in the title. The listed end time is a contract closing time, not a record that the market has resolved. The provider's status for this event at retrieval was active [1].
Why It Matters
The contract measures whether Bitcoin's average price during a short interval finishes at or above its starting level, using one named Chainlink data stream [1]. Because the rule compares the window average with the price at the start of the window, the outcome depends on the path of prices during the window rather than only on the final moment. Using a time-weighted average also means a brief spike or drop near the close is smoothed across the interval [1]. The title and rules together define the question precisely: the time range, the asset pair (BTC/USD), the averaging method (TWAP), the data stream, and the comparison (window average against starting price) [1]. Anyone reading a price for this contract should keep those definitions in view, because a figure from a different feed or a different time range does not measure the same event.
Snapshot context
The latest published provider snapshot for this topic was observed on 2026-10-19 at 03:00 UTC. It contains listings from Polymarket. Market descriptions and listed closing times define the contracts; they do not establish that the real-world outcome has occurred. This article does not include a separately verified news update. [1]
Frequently Asked Questions
What price determines whether this market resolves Up or Down?
The market uses the time-weighted average price of Bitcoin over the time range in the title, generated by Chainlink, compared with the price at the beginning of that range [1].
Which data source is used for resolution?
The resolution source is the Chainlink BTC/USD TWAP data stream [1]. The provider states that other sources and spot markets are not used for this contract [1].
When does the contract's listed window end?
The listed end time is 2026-10-20T02:00:00.000Z, which matches the close of the 9:45PM to 10:00PM ET window on October 19 [1].
What happens if the average equals the starting price?
The rules say the market resolves to Up when the window average is greater than or equal to the starting price, so an exact tie resolves Up [1].
AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.
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Price gaps of 2 pp+
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Reviewed equivalent pairs
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No currently reviewed equivalent pairs with both binary Yes prices are available.
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