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GroupPOLYMARKET

Bitcoin Up or Down - October 28, 3:45PM-3:50PM ET

Bitcoin Up or Down - October 28, 3:45PM-3:50PM ET
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AI Analysis

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Source snapshot: Oct 28, 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 2026-10-27T21:00:06.613Z. This analysis describes that snapshot and is not a live news update.

What the contract measures

This is a single Polymarket contract titled "Bitcoin Up or Down - October 28, 3:45PM-3:50PM ET" [1]. Its rule states that the 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"" [1].

The resolution source is the Chainlink BTC/USD TWAP data stream, and the rule says 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]. The listed end time is 2026-10-28T19:50:00.000Z [1]. The title's window is expressed in Eastern Time, so readers comparing it with other contracts should check that both are using the same window and time zone.

Reading the snapshot

The saved snapshot was observed at 2026-10-27T21:00:06.613Z and retrieved at 2026-10-27T22:00:18.654Z [1]. Both times are earlier than the current moment, so the prices below describe that snapshot only and may not reflect current conditions.

The snapshot shows "Up" at 0.505 and "Down" at 0.495 [1]. These are provider-reported prices, not executable quotes or verified probabilities. The record does not include volume, order book depth, or trader counts, so it says nothing about liquidity or how many participants hold each view.

The coverage record lists one market from one platform, with all saved markets included and no partial sample [1]. Because only this contract is present, there is no other market in the evidence to compare it against. Its status was recorded as "active" at the time of the snapshot [1].

What remains uncertain

The evidence does not show whether the contract has resolved, what the TWAP value was for the window, or which outcome occurred. Nothing in the supplied material explains why the prices sit near even odds.

The sample also does not establish that the provider lists every possible outcome for this window, since the source notes that it "does not establish that the providers list every possible real-world outcome" [1]. Any price difference between this contract and a differently worded contract on another platform would not by itself indicate an opportunity, because the rules, data sources, and close times may differ.

References

  1. Polymarket: Bitcoin Up or Down - October 28, 3:45PM-3:50PM ET. Provider data observed 2026-10-27T21:00:06.613Z.

AI-generated analysis based on market data. Not financial advice.

Saved Oct 27, 2026 UTC

Overview

This is a short-horizon price contract on Polymarket asking whether Bitcoin will rise or fall over a specific five-minute window. The title refers to October 28, 3:45 PM to 3:50 PM ET. The contract resolves to "Up" if the time-weighted average price (TWAP) of Bitcoin over that window is greater than or equal to the price at the start of the window, and to "Down" otherwise [1]. The contract is listed with two outcomes, Up and Down, and its provider status is active, with a listed end time of 2026-10-28T19:50:00.000Z [1]. The outcome is determined by data rather than by a judgment call. The stated resolution source is Chainlink's BTC/USD TWAP data stream, and the contract specifies that it tracks the price in that data stream and not other sources or spot markets [1]. This means a reader comparing the contract to a Bitcoin price on an exchange should expect that difference to matter, since the rules name a single feed as the reference.

Why It Matters

The contract measures the direction of Bitcoin's price over one short, fixed window, as calculated from the Chainlink BTC/USD TWAP data stream [1]. Because the comparison is between the time-weighted average during the window and the price at the window's start, the result depends on the average over the period rather than only on the price at its close [1]. Readers should keep the rules in mind: the contract is about that specific data feed, not about Bitcoin's price as reported everywhere.

Snapshot context

The latest published provider snapshot for this topic was observed on 2026-10-27 at 21:00 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?

The contract resolves to "Up" if the 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 contract resolves to "Down" if the TWAP over the stated range is not greater than or equal to the price at the beginning of the range [1].

Which price data determines the result?

The resolution source is Chainlink's BTC/USD TWAP data stream, and the rules state that other sources or spot markets do not determine the outcome [1].

Does a TWAP-based contract match the Bitcoin price shown on exchanges?

Not necessarily. The contract explicitly refers only to the Chainlink TWAP data stream for BTC/USD, so the result may differ from prices on other venues [1].

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Saved Oct 27, 2026 UTC

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.

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

Market Insights

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Price differences do not establish arbitrage. Check each pair's review, current order prices, fees and settlement rules.

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