Bitcoin Up or Down - October 20, 4:00AM-4:05AM ET
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Bitcoin Up or Down - October 20, 4:00AM-4:05AM 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, 12:00 PM 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 2026-10-19T09:00:05.974Z. This analysis describes that snapshot and is not a live news update.
What the contract measures
The contract is titled "Bitcoin Up or Down - October 20, 4:00AM-4:05AM ET" and is listed in the Crypto category [1]. According to the source, 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 will resolve to "Down"" [1].
The resolution source is the "BTC/USD TWAP data stream" from Chainlink, and the source states that the 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" [1]. A reader comparing this contract with a Bitcoin market that uses a different price feed or exchange should expect the rules to differ, even when the headline sounds similar.
The listed end time is 2026-10-20T08:05:00.000Z [1]. That is the contract's listed close, not a statement about when resolution will be announced.
Reading the snapshot
The provider observed the market at 2026-10-19T09:00:05.974Z, and the application retrieved the source at 2026-10-19T09:32:37.777Z [1]. These are different times, and the prices describe the observation time only. The provider status at retrieval was "active" [1].
The saved prices are "Up" at 0.505 and "Down" at 0.495 [1]. These are snapshot values, not executable quotes or verified probabilities. The two outcomes sum to 1.00 in this snapshot, but the record does not show bid and ask spreads, depth, or trade history. The saved data includes no volume figure, so this snapshot says nothing about liquidity or how many traders are involved.
The coverage record lists one market for this event, and the sample is not partial [1]. The source also states that "All saved markets for these events are included. This does not establish that the providers list every possible real-world outcome" [1]. Because this is a binary contract with one saved market, the snapshot offers no basis for comparison with other platforms or other time windows. Prices from contracts with different wording, resolution sources, or close times should not be averaged or treated as an arbitrage signal.
What remains uncertain
The evidence does not explain why the prices sit near even odds, and it contains no news or market commentary about Bitcoin. It also does not show the price at the start of the window, the TWAP value during the window, or the final resolution. Since the listed end time is after the retrieval time, the outcome is not established by this record. Readers should check the live contract and the Chainlink stream directly if they need current information.
References
- Polymarket: Bitcoin Up or Down - October 20, 4:00AM-4:05AM ET. Provider data observed 2026-10-19T09:00:05.974Z.
AI-generated analysis based on market data. Not financial advice.
Saved Oct 19, 2026 UTCOverview
This PredictPedia entry covers a short-term Bitcoin price contract on Polymarket titled "Bitcoin Up or Down - October 20, 4:00AM-4:05AM ET." The contract asks whether Bitcoin's price moves up or down over one five-minute window. It resolves to "Up" if the time-weighted average price (TWAP) of Bitcoin over the stated time range is greater than or equal to the price at the beginning of that range. Otherwise it resolves to "Down" [1]. The price used for resolution is not a general market price. The source states that the resolution source is information from Chainlink, specifically its BTC/USD TWAP data stream [1]. The rules say the market concerns the price according to that Chainlink data stream for the BTC/USD pair, not any other source or spot market [1]. A reader should therefore check the Chainlink feed, rather than an exchange ticker, to understand how this contract would be settled. The listed end time is 2026-10-20T08:05:00Z, which the title expresses as 4:05AM ET [1]. This is the contract's closing time as listed in the provider's rules. It is not a record of when the contract settled. The contract also describes a fixed window: the title specifies the range, and the resolution compares the average over that range with the price at its start [1].
Why It Matters
The contract measures whether Bitcoin's Chainlink TWAP over a five-minute window finishes at or above its starting level. Because the rules tie resolution to one named data stream and one time range [1], the outcome depends on that specific measurement rather than on general news or a broader view of Bitcoin's price. Readers interested in the contract should focus on the resolution wording, since that wording determines what counts as "Up" and "Down."
Snapshot context
The latest published provider snapshot for this topic was observed on 2026-10-19 at 09:00 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 does "Up" mean for this contract?
According to the rules, the market resolves to "Up" if the Chainlink TWAP of Bitcoin over the time range in the title is greater than or equal to the price at the beginning of that range [1].
What does "Down" mean?
The market resolves to "Down" when the TWAP over the stated range is below the price at the beginning of that range [1].
Which price source is used for resolution?
The resolution source is the Chainlink BTC/USD TWAP data stream. The rules state that other sources or spot markets do not determine the outcome [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.
Price differences do not establish arbitrage. Check each pair's review, current order prices, fees and settlement rules.