Ethereum Up or Down - October 19, 9:55PM-10:00PM ET
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Ethereum Up or Down - October 19, 9:55PM-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 Ethereum, 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 ETH/USD TWAP data stream available at https://data.chain.link/streams/eth-usd-twap-60s-streams. Please note that this market is about the price according to the TWAP Chainlink data stream for the asset pair ETH/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 is a single Polymarket contract on the Ethereum price over a five-minute window, titled "Ethereum Up or Down - October 19, 9:55PM-10:00PM ET" [1]. Per the rules, the market "will resolve to "Up" if the time-weighted average price (TWAP) of Ethereum, 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 Chainlink ETH/USD TWAP data stream, and the rules state that the market concerns "the price according to the TWAP Chainlink data stream for the asset pair ETH/USD, not according to any other sources or spot markets" [1]. A reader comparing this with an exchange quote or another platform's Ethereum market should expect different wording, sources, and time windows to produce different outcomes.
The listed end time is 2026-10-20T02:00:00.000Z [1]. The title uses Eastern Time, so readers should convert carefully when matching the two. Listing a close time does not mean the contract has resolved.
Reading the snapshot
The saved snapshot was observed at 2026-10-19T03:00:06Z and retrieved at 2026-10-19T04:10:52Z [1]. These are the times to use when reading the prices. They describe a past observation, not live trading.
At that observation, the Up outcome was priced at 0.505 and the Down outcome at 0.495 [1]. These are snapshot prices, not executable quotes, and they are not verified probabilities. The gap between them is small, and the sample contains only this one market, so there is no cross-market comparison to draw from.
The market status was recorded as active [1]. The saved data does not include trading volume, order book depth, or the number of participants, so none of those can be inferred from this snapshot.
What remains uncertain
The evidence does not show whether the market has since resolved, what the Chainlink TWAP was during the window, or how prices have changed since the observation. It also does not explain why the prices stood where they did.
This sample includes one market from one provider event, and it is complete for that event [1]. It does not establish that Polymarket lists every possible outcome for Ethereum over this period. No other platform's contract appears in the evidence, so the snapshot cannot be compared with a competing contract, and a price difference between two differently worded contracts would not by itself indicate an opportunity.
References
- Polymarket: Ethereum Up or Down - October 19, 9:55PM-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 is a short-term price contract from Polymarket, titled "Ethereum Up or Down - October 19, 9:55PM-10:00PM ET" and categorized under Crypto [1]. It asks whether the price of Ether (ETH) will be higher or lower over a five-minute window. The source describes the outcome rule this way: the market resolves to "Up" if the time-weighted average price (TWAP) of Ethereum, generated by Chainlink, 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 specific. The source states that the market concerns the Chainlink TWAP data stream for the ETH/USD pair, not other sources or spot markets [1]. A trader reading the contract therefore needs to understand the Chainlink feed, not simply the price on a particular exchange. The contract's rules also name the data stream directly, so the resolution does not depend on a general judgment about the market [1]. The saved provider record lists an end time of 2026-10-20T02:00:00Z [1]. That date is taken from the contract's listed end time. It is not an announcement of an event, and it does not by itself describe when the outcome will be final or what the market status is at any later moment. The record was observed at 2026-10-19T03:00:06Z and retrieved at 2026-10-19T04:10:52Z, so the market details above describe that saved snapshot.
Why It Matters
The contract measures the direction of Ether's price over a short window using one defined data stream. Because the rule compares the TWAP over the window with the price at the start of that window, it asks whether the averaged price finished at or above its starting level, not whether the spot price rose at the final moment [1]. Anyone interpreting the contract's prices should keep this definition in mind, since the contract settles on the stated Chainlink feed and not on other markets [1].
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 does this market use to decide the outcome?
It uses the time-weighted average price of Ethereum generated by Chainlink over the time range in the title, specifically the ETH/USD TWAP data stream [1].
What happens if the average price equals the starting price?
The market resolves to "Up" when the TWAP is greater than or equal to the price at the beginning of the range [1].
Do other exchanges or spot markets affect the outcome?
No. The source states the market is about the price according to the Chainlink TWAP data stream for ETH/USD, not according to any other sources or spot markets [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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Prices are catalog snapshots and may have changed. Check each market's rules and observation time.
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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.