Sirianni Odds Collapse, Bitcoin Surges Past $84K

A dramatic mid-season shift in Philadelphia drove the biggest single move of the window, erasing what had been a near-certain Coach of the Year favourite. Simultaneously, a Bitcoin rally to multi-month highs flooded two separate crypto markets with fresh volume and large trades.

Sirianni's odds collapse to 1% on Kalshi

Nick Sirianni's Coach of the Year probability fell 98.0 points in seven days, from 99.0% to 1.0%, a move consistent with an in-season firing rather than a gradual slide. Pre-season commentary had flagged the Eagles' offensive struggles and ownership's low tolerance for underperformance as the conditions most likely to prompt a mid-year dismissal. With Sirianni effectively priced out, Klint Kubiak leads the market at 19.0%, ahead of John Harbaugh at 17.5%.

Outcome	7 days ago	Now	Change
Nick Sirianni	99.0%	1.0%	-98.0 pts

24h volume $165,834 · 2 platforms.

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Hendel exits; Eizenkot widens lead in Israel race

Yoaz Hendel's Prime Minister odds dropped 37.5 points to 1.5% after his centre-right Reservists party — already polling below the electoral threshold — split from coalition partner Chili Tropper and rebranded in a new joint list with economist Yaron Zelekha. Recent polls show a near-even seat split between the Netanyahu and Eisenkot blocs, which the market reflects: Gadi Eizenkot is now priced at 56.5%, though Limitless offers the cheapest entry at 52.8% — a 3.5-point spread worth watching as the October 27 election approaches.

Outcome	7 days ago	Now	Change
Yoaz Hendel	39.0%	1.5%	-37.5 pts

24h volume $185,373 · 5 platforms · 20 large trades totalling $123,511 (7d).

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Navy vs UAB volume explodes 4,372% ahead of kickoff

Volume on the Navy–UAB matchup rose 4,372% week-on-week, almost entirely through Kalshi's spread and totals markets, as the September 25 game drew sharply increased attention. The spread-cover outcomes dominate current pricing, with Navy covering +13.50 priced at 95.3% consensus — reflecting a market that sees UAB as a heavy underdog. Polymarket US lists the game but shows zero volume, meaning all price discovery this week happened on Kalshi alone.

Outcome	7 days ago	Now	Change
Yes	99.0%	7.0%	-92.0 pts

24h volume $94,507 · 2 platforms.

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Bitcoin's $84K spike lifts full-year price targets

The probability that Bitcoin hits $90,000 at some point in 2026 jumped 33.7 points to 78.0% as the asset broke above $84,000 on September 21 for the first time since January, liquidating more than $262 million in short positions in a single hour. The rally — attributed to falling oil prices and positioning ahead of a Trump-Xi summit — also pushed the $95,000 outcome to 54.5% and $100,000 to 38.5%. Eight large trades totalling $73,031 accompanied the move, and the market — listed solely on Polymarket with $68.5 million in volume — saw weekly turnover rise 293%.

Outcome	7 days ago	Now	Change
↑ 90,000	44.3%	78.0%	+33.7 pts

24h volume $708,501 · 1 platform · 8 large trades totalling $73,031 (7d).

Compare live odds for What price will Bitcoin hit in 2026?

Musk tweet-count market narrows toward 180–199 range

The 180–199 bracket rose 29.0 points to 47.5% as the measurement window winds down — resolving Tuesday — and actual tweet activity came into view. The 200–219 bracket remains close behind at 42.5%, keeping the outcome genuinely open with less than 24 hours left. Volume of $1.31 million on Polymarket makes this the window's most-traded single-platform political market.

Outcome	7 days ago	Now	Change
180-199	18.6%	47.5%	+28.9 pts

24h volume $224,658 · 1 platform.

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September Bitcoin price ceilings locked in at 99.6%

Bitcoin's surge through $81,000–$84,000 this week settled the September price-band markets decisively: Polymarket priced every high-end "No" outcome at 99.4%–99.6%, as 41 large trades totalling $657,955 confirmed the direction. With the token failing to reclaim levels above roughly $84,000 during the month, the upper price thresholds — previously still in play when Bitcoin traded in the high $70,000s — closed the window as resolved questions.

Outcome	7 days ago	Now	Change
No	84.9%	36.5%	-48.4 pts

24h volume $1,084,593 · 1 platform · 41 large trades totalling $657,955 (7d).

Compare live odds for What price will Bitcoin hit in September?

The takeaway

Two threads run through this window: a sharp, event-driven probability collapse in the NFL coaching market and a Bitcoin rally that simultaneously resolved one crypto market and reopened ambition in another. When a single asset move can do both at once, cross-market vol tends to follow.