BTC Up or Down - 15 minutes
K 628.65 contracts
1
1
BTC Up or Down - 15 minutes
K 628.65 contracts
1
1
AI Analysis
Trader mode: Market mechanics, assumptions and risks
K 628.65 contracts
Reported volume · provider units
1
Saved contracts
0
Reviewed equivalent pairs
Source snapshot: Oct 19, 2026, 9:00 AM UTC
About This Event
Oct 19 - 5:00AM EDT to 5:15AM EDT If the simple average of the sixty seconds of CF Benchmarks' BRTI before 5:15 AM EDT on Oct 19, 2026 is at least the simple average of the sixty seconds of CF Benchmarks' BRTI before 5:00 AM EDT on October 19, 2026, then the market resolves to Yes. Not all cryptocurrency price data is the same. While checking a source like Google or Coinbase may help guide your decision, the price used to determine this market is based on CF Benchmarks' corresponding Real Time Index (RTI). At the last minute before expiration, 60 RTI prices are collected. The official and final value is the average of these prices, rounded to the nearest 2 decimal places.
Snapshot observed 2026-10-19T03:00:06.086Z. This analysis describes that snapshot and is not a live news update.
What the contract measures
The contract is a 15-minute Bitcoin direction market from Kalshi. Its rules say the market resolves to Yes if "the simple average of the sixty seconds of CF Benchmarks' BRTI before 11:15 PM EDT on Oct 18, 2026 is at least the simple average of the sixty seconds of CF Benchmarks' BRTI before 11:00 PM EDT on October 18, 2026" [1]. The rules also state that the settlement price is based on CF Benchmarks' Real Time Index, not on general price sites: "the price used to determine this market is based on CF Benchmarks' corresponding Real Time Index (RTI)" [1]. A reader comparing this with other crypto markets should check whether each one uses the same index and the same averaging window.
The contract wording and the listed close time do not match cleanly. The rules describe an 11:00 PM to 11:15 PM EDT window on October 18, 2026 [1]. The saved market record lists an end date of 2026-10-26T03:15:00.000Z [1]. The source excerpt also says "Listed end time: not supplied" [1]. This evidence does not explain the gap, so the reader should not assume either date is the settlement time without checking the platform's current listing.
Reading the snapshot
The saved market shows two outcomes. Yes was recorded at 0.565 and No at 0.435 [1]. The observation time is 2026-10-19T03:00:06.086Z, and the source was retrieved at 2026-10-19T03:34:59.878Z [1]. These figures describe that saved moment only. They are not live prices, and they are not executable quotes. They also are not verified probabilities.
The coverage record lists one market for this event, and all of its markets are included. The sample is not partial for this event [1]. This does not show that the platform lists every possible outcome for other BTC contracts, and no comparison with other platforms or events is supported by this snapshot.
Volume was not supplied in this evidence, so nothing can be said about liquidity or trader activity.
What remains uncertain
The evidence does not show the current status of the market beyond "active" at the time of retrieval [1]. It does not establish the final settlement value, the actual resolution, or any change in the listed close time after the snapshot. It also does not explain why prices stood where they did. A reader should treat the Yes and No figures as a single saved reading and check the platform for current rules, close times, and prices before drawing any conclusion.
References
- Kalshi: BTC Up or Down - 15 minutes. 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 Bitcoin price contract listed on Kalshi under the title "BTC Up or Down - 15 minutes" [1]. Rather than asking whether bitcoin will reach a specific price, it asks whether its price at the end of a 15-minute window is at least as high as its price at the start. The contract's rules describe the start and end of the comparison window as 11:00 PM EDT and 11:15 PM EDT on October 18, 2026 [1]. These are the contract's own rule dates, not an announced event or a scheduled public release. The settlement method is the central feature of the contract. Under the rules, the market resolves to Yes if the simple average of the sixty seconds of CF Benchmarks' Bitcoin Real Time Index (BRTI) before 11:15 PM EDT is at least the simple average of the sixty seconds of BRTI before 11:00 PM EDT [1]. The rules state that the price used is based on CF Benchmarks' corresponding Real Time Index, and that other sites or exchange prices are not the reference for this market [1]. Sixty index prices are collected in the final minute before expiration, averaged, and rounded to two decimal places to give the official value [1]. The provider record is a saved snapshot of an active listing. Its observation and retrieval times describe when that record was captured, and the contract's closing and resolution would happen according to the rules, not at the time of the snapshot. The provider excerpt does not supply a listed end time, so the comparison window in the rules is the reliable reference for when the contract is measured [1].
Historical Context
Bitcoin is described as the first decentralized cryptocurrency. It was invented in 2008, when a person using the pseudonym Satoshi Nakamoto published a white paper, and its use as a currency began in 2009 with the release of its open-source implementation [2]. From 2021 to 2025, El Salvador adopted bitcoin as legal tender before revoking that status [2]. The supplied background does not describe the history of this specific contract or its listing.
Why It Matters
The contract measures the direction of bitcoin's index-based price over one 15-minute comparison window, not a fixed price target [1]. Because it settles on the average of BRTI readings rather than on a single trade or a single exchange's quote, the outcome depends on that index methodology [1]. Traders and observers can use the contract to see how the market prices short-term upward movement in that index, but the price of the contract on any date reflects only that saved record and is not a verified probability of the outcome.
Snapshot context
The latest published provider snapshot for this topic was observed on 2026-10-19 at 03:00 UTC. It contains listings from Kalshi. 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 this contract actually ask?
It asks whether the average of BRTI readings in the minute before 11:15 PM EDT on October 18, 2026 is at least the average of BRTI readings in the minute before 11:00 PM EDT on the same date [1]. If so, the market resolves to Yes [1].
Why does the contract not use the price shown on a general website or exchange?
The rules state that not all cryptocurrency price data is the same and that the price used is based on CF Benchmarks' corresponding Real Time Index [1]. Checking other sources may help with a decision, but they are not the settlement reference [1].
How is the final value calculated?
At the last minute before expiration, sixty RTI prices are collected. The official value is their average, rounded to the nearest two decimal places [1].
Is this the same as tracking bitcoin itself?
No. Bitcoin is a decentralized cryptocurrency that began in 2009 [2]. This contract is a financial listing that settles on one index-based comparison over a 15-minute window [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+
0
Reviewed equivalent pairs
0
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.
