Major changes in prediction markets: Week 1

Professional trader Tanner Lux breaks down the key events and their impact on the poker markets from the first week. Discover the reasons behind the shifts and what they mean for players.

In the first week of our regular review of key events in the prediction markets, professional trader and Predict 2026 organizer from Voliti Co, Tanner Lux, breaks down the most significant shifts in forecasts. Over the past seven days, market dynamics were shaped by the failed vote on a cryptocurrency bill, new public opinion polls, the release of reviews for a highly anticipated film, and the unexpected outcome of a sports match. In this article, we take a close look at the causes and consequences of these moves, along with a full breakdown of the week’s statistics. Biggest Market Moves of the Week: Key Events Recap Cryptocurrency Legislation: Clarity Act — likelihood of passage fell by 23% Bitcoin: reaching $85,000 — probability jumped by 32% Resident Evil movie rating — expected rating rose by 13% Democrats winning the Senate — odds increased by 5% New Orleans Saints win (Moneyline) — result confirmed, but exact probability figures still pending verification Cryptocurrency Legislation: Clarity Act’s Chances Take a Hit On the Kalshi platform, the likelihood that the Clarity Act—a bill regulating cryptocurrencies—would pass by year-end dropped sharply by 23 percentage points on September 15. This came after the Senate failed to secure enough votes in a key procedural stage needed to advance the bill. Just a day earlier, market sentiment was more optimistic, as news broke that former President Donald Trump had agreed to new ethics provisions, raising hopes for the bill’s success. However, the failed vote made it clear that even with the changes, the bill still lacked sufficient support. Traders also revised their long-term outlook: the probability of the Clarity Act passing by January 2028 fell from 63% to 21%. Since Kalshi contracts were tied to the bill’s final passage, the setback at the procedural stage impacted forecasts but did not close the market itself. Source: Kalshi report, September 15. Bitcoin: Odds of Hitting $85,000 Surge The probability that Bitcoin would top $85,000 by the end of September surged by about 32 percentage points from Thursday to Friday. During this period, Bitcoin’s price climbed from just over $76,000 to around $81,099. This rebound followed a sluggish start to the week. Another key factor was record inflows into Bitcoin ETFs: on Thursday alone, nearly $160 million poured in, snapping a streak of outflows. While it’s not certain these investments directly caused the price jump, they created a favorable backdrop for the increased odds of reaching a new high. Although Bitcoin hasn’t yet hit $85,000, traders have adjusted their expectations upward. Source: Kalshi report, September 18. Culture: Resident Evil’s Expected Rating Climbs After Reviews Drop On Kalshi, the expected final Rotten Tomatoes score for the Resident Evil movie rose from 82% on Monday to 95% by Thursday. This shift came after the review embargo was lifted on Wednesday, allowing critics to publish their takes. The first wave of critic reviews gave the film an actual Tomatometer score of 96%. For traders, this was a much more reliable indicator of approval than earlier promotional materials or insider buzz. It’s important to note that this is an increase in the expected rating by 13 points, not the probability of hitting a specific score. Data: Monday forecast; Thursday update. Politics: Democrats Strengthen Position in Senate Race On Kalshi, the probability of Democrats winning control of the Senate rose from 52% on Monday to 57% by Thursday. While this 5-point move is smaller than the swings seen in crypto markets, it solidified the Democrats’ edge and made them the market favorites. The uptick in probability coincided with the release of polls favorable to Democrats. For example, a Quinnipiac poll showed Democrats leading 49% to 38% on the so-called “generic congressional ballot.” Meanwhile, a CNN/SSRS poll in Maine found Democratic candidate Troy Jackson ahead of incumbent Senator Susan Collins, 48% to 45%—within the margin of error. These data points gave traders more reasons to back the Democrats, though it’s hard to pinpoint exactly how much each poll contributed to the overall market move. Data: Monday probability; Thursday update. Sports: New Orleans Saints Rally to Upset Baltimore Ravens On Sunday, the New Orleans Saints defeated the Baltimore Ravens 24–17, overcoming a 3–14 deficit during the game. The turning point came in the fourth quarter, with two touchdowns and a successful two-point conversion that swung the momentum in the Saints’ favor. In Kalshi’s pre-game markets, New Orleans was considered the underdog. Unlike the other cases discussed, here the decisive information came during the game itself, and the result automatically settled the contract. While the upset is confirmed, the exact probability figures for a Saints win before and during the game still need to be verified before the full scale of the odds shift can be assessed. Sources: pre-game coverage; post-game review. Table: Key Prediction Market Moves of the Week Event Platform Probability Change Period Comment Clarity Act (bill passage) Kalshi -23% September 15 Senate vote failed Bitcoin tops $85,000 Kalshi +32% Thursday–Friday Price rally and ETF inflows Resident Evil rating (Rotten Tomatoes) Kalshi +13% Monday–Thursday Reviews published Democrats win Senate Kalshi +5% Monday–Thursday Favorable polling New Orleans Saints win Kalshi Not confirmed Sunday Comeback vs. Ravens What Are Prediction Markets and How Do They Work? Prediction markets are platforms where participants can buy and sell contracts tied to whether certain events will or won’t happen (for example, a bill passing, an election outcome, or a sports result). The contract price reflects the market’s estimate of the event’s probability: if a contract trades at 60 cents, the market is pricing in a 60% chance. Once the event is resolved, contracts are settled: if your prediction was correct, you receive $1; if not, you get nothing. Kalshi is one of the leading platforms in this space, offering a wide range of contracts—from politics and economics to culture and sports. Price movements are driven by new data, news, polls, and other factors that can shift the perceived likelihood of an event. Risks and Legal Considerations in Prediction Markets Trading on prediction markets involves financial risk. Even the most reputable platforms can’t guarantee outcomes, and participants should remember that losses are possible. Only risk funds you can afford to lose, and never stake money that’s critical for your well-being. Additionally, platform availability and legal status can vary by country and region. Before registering and trading, always check your local laws to ensure you’re allowed to use the platform. What This Means for PPPoker Club Players For PPPoker club members, tracking prediction market dynamics can be a great way to sharpen analytical thinking and decision-making under uncertainty. Just like in poker, it’s crucial to react quickly to new information, assess probabilities, and adjust your strategy as the situation evolves. Studying these cases helps you understand how external events—news, polls, or unexpected outcomes—can instantly impact odds and prices. This skill translates directly to the poker table: managing probabilities, factoring in new information, and adapting on the fly are all hallmarks of a winning player. What’s more, experience trading on prediction markets can help with bankroll management and risk control—especially important for regular PPPoker club grinders. Discipline and responsibility are key, whether you’re betting on a game’s outcome or playing in a major tournament.