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Short-Term Bitcoin Bets Drove Kalshi and Polymarket’s $2.7B Week
Kalshi and Polymarket recorded a reported $2.7 billion in weekly crypto contract notional volume, driven mainly by short term up or down bets. Kalshi’s 15 minute Bitcoin contracts were especially active: a single contract period could exceed $1 million in volume, according to the report.
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Key takeaways
- Kalshi and Polymarket recorded a reported $2.7 billion in weekly crypto contract notional volume, driven mainly by short term up or down bets.
- Kalshi’s 15 minute Bitcoin contracts were especially active: a single contract period could exceed $1 million in volume, according to the report.
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openai.comCreate a landscape editorial hero image for this Studio Global article: How did crypto prediction markets on Kalshi and Polymarket reach a record $2.7 billion in combined weekly notional volume in mid-October des. Article summary: The reported $2.7 billion record was primarily a surge in short-term crypto-contract trading, not necessarily a surge in money deposited or demand for Bitcoin itself; crypto consequently ranked second only to sports on b. Topic tags: general, news, general web, user generated, government. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermar
Kalshi and Polymarket’s reported $2.7 billion weekly record came mainly from short-term crypto “up/down” contracts, where traders bet on whether Bitcoin and other assets will rise or fall over a set interval. The total is a measure of contract trading, not evidence that $2.7 billion in fresh money entered the platforms. 4
Why a narrow Bitcoin range didn’t prevent a volume record
These markets focus on what happens over short windows—from five minutes to the close of the day—not just on Bitcoin’s direction over weeks or months. A relatively narrow longer-term price range can still leave room for traders to take positions on short-interval moves and outcomes. The report identifies those short-term contracts as the main source of the record, but does not quantify Bitcoin’s price range during the week. 4
Kalshi’s 15-minute Bitcoin markets stood out: the cited reporting says trading volume in a single 15-minute contract period could exceed $1 million. That is volume within a period, not proof of one individual trade worth more than $1 million. 4
The reported $2.7 billion made crypto the second-largest category on both platforms, behind sports. 4 The figures point to substantial activity in these products, but do not establish that traders were buying Bitcoin itself or that spot-market demand rose.
Notional volume is not the same as deposits
Notional volume describes the value of contracts traded. It should not be read as the amount deposited by users, the value of unique users’ positions, or the amount of money committed once and held until settlement. If contracts change hands, trading activity can accumulate across transactions; the headline total alone does not show how much new funding entered accounts.
The $2.7 billion figure was reported by PANews, citing Bloomberg’s account of statistics from a Dune Analytics user. The available report does not provide a breakdown of deposits, unique traders, or the dashboard’s full counting methodology. 4
How the other volume figures compare
A separate report put Kalshi’s crypto-contract volume at about $8.17 billion from September 1 to 28, with roughly 86% attributed to 15-minute markets. That is a different time window from the later combined weekly record, so the two figures should not be added together or treated as directly comparable without checking how each was counted. 3
The reported $2.7 billion is specifically a combined weekly figure for crypto-related contracts on Kalshi and Polymarket. Platform-wide totals cover more than crypto, while monthly or multiweek figures cover different periods. They describe different slices of activity—not additional parts of the same weekly total.
The reporting supports a clear explanation for the record: frequent short-term Bitcoin and crypto bets generated heavy contract turnover. It does not, on its own, show how much users deposited, how many distinct traders participated, or whether activity shifted from spot markets.
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Kalshi and Polymarket recorded a reported $2.7 billion in weekly crypto contract notional volume, driven mainly by short term up or down bets.
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Kalshi and Polymarket recorded a reported $2.7 billion in weekly crypto contract notional volume, driven mainly by short term up or down bets. Kalshi’s 15 minute Bitcoin contracts were especially active: a single contract period could exceed $1 million in volume, according to the report.