Bitcoin price on May 28, 2026
Bitcoin price on May 28, 2026 is priced at 1¢ on Kalshi. Current book: 0¢ bid, 1¢ ask, 1¢ spread. This page tracks a standalone prediction-market contract.
Price history
1¢ current
−10¢Contract brief
If the simple average of the sixty seconds of CF Benchmarks' Bitcoin Real-Time Index (BRTI) before 5 PM EDT is above 80999.99 at 5 PM EDT on May 28, 2026, then the market resolves to Yes.
Outcome
Bitcoin price on May 28, 2026
Rank
Standalone
Leader
—
Range
—
Family volume
$29
Identifier
KXBTCD-26MAY2817-T80999.99
May 28, 2026, 8:42 PM UTC · 0m ago
Implied probability
Bid
0¢
Ask
1¢
Spread
1¢
24h volume
$19
Family rank
Standalone
Standalone contract
Closes
May 28, 2026
Family volume
$29
Orderbook snapshot
0 / 1¢
Contract terms
What resolves this market.
YES condition
If the simple average of the sixty seconds of CF Benchmarks' Bitcoin Real-Time Index (BRTI) before 5 PM EDT is above 80999.99 at 5 PM EDT on May 28, 2026, then the market resolves to Yes.
Venue
Kalshi
Closes
May 28, 2026
Identifier
KXBTCD-26MAY2817-T80999.99
Cross-venue match
Similar contract on polymarket at —.
Event family
This market.
The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.
Total volume
$29
Outcomes
1
Highest price
Bitcoin price on May 28, 2026 1¢
Current share
100%
Bitcoin price on May 28, 2026
kalshi · KXBTCD-26MAY2817-T80999.99
Indicators
Yield, cliff risk, volatility, and regime.
Regime
neutral
Score
0.5
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SimpleFunctions context
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Event Probability API
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Realtime Data API
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World State API
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How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.