Short Answer

Andy Burnham is expected to mention "Afford", "Affordable", or "Affordability" during Prime Minister's Questions, with the market pricing this outcome at 99.0%.

1. Market Behavior & Drivers

The market's most significant move, a 39.0 percentage point spike on September 5, was driven by news of escalating anti-migrant protests in Dover and Portsmouth. Prime Minister Andy Burnham’s condemnation of these events as the "politics of poison" elevated the topic's salience just days before the scheduled Prime Minister’s Questions.
A subsequent 18.0 percentage point spike on September 6 lacks a specific primary driver in the available research. The contract price then collapsed 19.0 percentage points on September 9, the day of the event. The PMQs session was reportedly dominated by migration discussions, leading the market on a potential "AI / Artificial Intelligence" mention to resolve near zero. This final move occurred on the day's highest volume of 1,283 contracts traded.
  • Affordability and tax likely remain central following prior PMQs discussions.
  • Kemi Badenoch is expected to challenge Burnham on economic policies and unfunded spending.
  • Burnham has addressed international events; Ukraine and NATO appear likely topics.

Current Context

Prediction markets suggest Andy Burnham will speak frequently, addressing specific topics. Andy Burnham, UK Prime Minister since summer 2026, is scheduled for Prime Minister's Questions on September 9, 2026 [1][2][3]. Polymarket's contract on his remarks assigns an 86% implied probability to "Speaker 10+ times" and 68% to "London" as a mention [4]. Separately, Probsee shows "Speaker 10+ times" at approximately 94%, listing "Holborn / Pancras" as a mention [5]. Kalshi indicates "Immigrant / Immigration" at around 55%, with "NATO" at 48% and "Oil / Gas / Gasoline" at 44% [6].
Burnham’s prior PMQs appearances focused on fiscal policy and key government priorities. In his first Prime Minister's Questions on September 2, 2026, Prime Minister Burnham faced inquiries from Tory leader Kemi Badenoch regarding UK borrowing and spending [7][8]. He responded by stressing fiscal discipline, discussing the economy "turning the corner," and defending government efforts to reduce debt [7]. He also reaffirmed positions such as tax cuts, though he declined to rule out further tax rises under questioning, and avoided any mention of controversial proposals like "digital ID" [9]. Since taking office, his PMQs appearances have centered on domestic and international matters, including government policy on taxes, spending, and defense, specifically a reiterated commitment to raise defense spending to 3.5% of GDP by 2035 [10][1][2][3].
Sources (10)
  1. 1Time | Video | C-SPAN.orgc-span.org
  2. 2Prime Minister Burnham on Taxes and Spending | Video | C-SPAN.orgc-span.org
  3. 3British Prime Minister Burnham Reaffirms Commitment to Increase...c-span.org
  4. 4https://polymarket.com/event/what-will-andy-burnham-say-at-the-next-prime-ministers-questions-eventpolymarket.com
  5. 5What will Andy Burnham say at the next Prime Minister's Questions event?probsee.com
  6. 6What will Andy Burnham say during Prime Minister's Questions?kalshi.com
  7. 7Burnham pressed on economy at first PMQs as UK borrowing costs rise - BBC Newsbbc.co.uk
  8. 8Andy Burnham's first Prime Minister's Questions: 2 September 2026youtube.com
  9. 9Burnham’s first PMQs live: PM refuses to rule out tax rises as Badenoch hits out at ‘spendthrift prime minister’ | The Independentindependent.co.uk
  10. 10https://polymarket.com/event/next-uk-prime-minister-appointed-by-20260622183221153/will-the-next-uk-prime-minister-be-appointed-by-september-30-20260622183223873-821polymarket.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

Outcome: AI / Artificial Intelligence

📈 September 09, 2026: 65.0pp spike

Price increased from 34.0% to 99.0%

What happened: The available research indicates there is no evidence of a 65.0 percentage point spike for "AI / Artificial Intelligence" within the market concerning Andy Burnham's Prime Minister's Questions on September 9, 2026 [1]. The PMQs session on that date was primarily dominated by discussions on migration policy and anti-immigration protests, not Artificial Intelligence [2][3][4][5][6]. Furthermore, the term "spike 65.0pp" appears in unrelated prediction market analyses, suggesting the described market movement did not occur in this specific context [1]. Consequently, no primary driver can be identified for a non-existent event, rendering social media activity irrelevant to this particular market movement.

Outcome: Reform

📈 September 08, 2026: 16.0pp spike

Price increased from 21.0% to 37.0%

What happened: The primary driver for the 16.0 percentage point spike on September 8, 2026, was the heightened political relevance of Reform UK stemming from an ongoing migration controversy and reports of internal party divisions over anti-immigration protests [6][7]. With Prime Minister Andy Burnham scheduled to face a "brutal grilling" at Prime Minister's Questions on September 9, 2026, the party became a salient topic for potential discussion given its centrality to the dominant political debate [6][7]. No specific social media activity from key figures or viral narratives appeared to lead or coincide with this price movement, as none were identified in the provided sources. Therefore, traditional news and the immediate political climate surrounding PMQs were the primary drivers, with social media being largely irrelevant in this instance.

Outcome: Ukraine

📈 September 07, 2026: 54.0pp spike

Price increased from 23.0% to 77.0%

What happened: The primary driver of the 54.0 percentage point spike in the "Ukraine" outcome on September 07, 2026, was likely the breaking geopolitical news of reports concerning strikes on Moscow through that same day [8]. This development, coinciding with the market movement, would have intensified expectations that Prime Minister Andy Burnham would address Ukraine during Prime Minister's Questions on September 09, 2026 [4]. Burnham has consistently reaffirmed UK support for Ukraine since taking office, including announcing missile component declassification during an August 2026 visit to Kyiv [9]. Social media activity was not a primary driver, as no relevant posts or viral narratives were found.

Outcome: Trump

📈 September 06, 2026: 18.0pp spike

Price increased from 43.0% to 61.0%

What happened: The provided research does not identify a specific primary driver for the 18.0 percentage point spike in the "Trump" outcome on September 6, 2026. While Prime Minister Andy Burnham has a planned meeting with Donald Trump during a UN General Assembly trip later in September 2026, no social media activity from key figures, traditional news announcements, or market structure factors are reported for September 6, 2026, that would explain this specific movement [10][11][12][13][14]. Burnham's most recent Prime Minister's Questions on September 2, 2026, focused on domestic issues and did not primarily mention Donald Trump [15][16]. Therefore, social media was irrelevant, as no related activity is present in the provided sources [1-13].

Outcome: Immigrant / Immigration

📈 September 05, 2026: 48.0pp spike

Price increased from 4.0% to 52.0%

What happened: The primary driver of the 48.0 percentage point spike on September 05, 2026, was the traditional news surrounding escalating anti-migrant protests in Dover and Portsmouth and Prime Minister Andy Burnham's condemnation of these as the "politics of poison" [6][17][18]. Occurring in the days leading up to his September 9 Prime Minister's Questions, these events heightened expectations that immigration would be a major focus of his remarks [2][3][6]. This news directly coincided with the market movement, making it the most significant factor. Social media activity was not identifiable as a primary driver or contributing accelerant based on the provided information.
Sources (18)
  1. 1Badenoch presses Burnham on borrowing costs at his first Prime Minister's Questions - BBC Newsrt.http3.lol
  2. 2BBC Parliament - Prime Minister's Questions, 09/09/2026bbc.co.uk
  3. 3Time | Video | C-SPAN.orgc-span.org
  4. 4Prime Minister's Question Time - What's on - UK Parliamentwhatson.parliament.uk
  5. 5LIVE: Prime Minister's Questions with British Sign Language (BSL)youtube.com
  6. 6PMQs LIVE: Andy Burnham set to face brutal grilling as migration row explodes | Politics | News | Express.co.ukexpress.co.uk
  7. 7Splits Emerge In Reform Over Masked Anti-Migration Protesters | HuffPost UK Politicshuffingtonpost.co.uk
  8. 8Russia x Ukraine peace talks by...?polymarket.com
  9. 9Burnham ups the ante in fight against Russia — and leaves Merz in the shade – POLITICOpolitico.eu
  10. 10Andy Burnham plans US trip to meet Donald Trump and lobby over Ukraine defence - The Mirrormirror.co.uk
  11. 11The Trump-shaped problems awaiting Andy Burnham, ranked – POLITICOpolitico.eu
  12. 12Unlike needy Keir, trash-talking Andy speaks a language Trump understands | John Crace | The Guardiantheguardian.com
  13. 13The House | Bin the lectures, bring gossip and be ready to banter: how the new PM should prepare for his Trump encounter – WordUp Newswordupnews.com
  14. 14Trump approval Up or Down this week?polymarket.com
  15. 15Andy Burnham's first Prime Minister's Questions: 2 September 2026youtube.com
  16. 16Serious spending questions raised at Andy Burnham's first PMQs | STV Newsnews.stv.tv
  17. 17Burnham: We must stop politics of poison seeping into our streets | The Independentindependent.co.uk
  18. 18Andy Burnham warns MPs must 'prevent politics of poison' spreading after Dover and Portsmouth protests - The Mirrormirror.co.uk

4. Market Data

Contract Snapshot

The provided content is a market overview page and does not contain the specific contract rules, such as what exactly triggers a 'YES' or 'NO' resolution for any of the listed topics (Energy, Immigrant/Immigration, Trump). It also does not specify key dates for the Prime Minister's Questions event or any special settlement conditions. The only date mentioned is a "Max payout Sep 30, 2026," but its specific context regarding market resolution or expiration is not detailed.

Market Discussion

Prime Minister Andy Burnham is expected to face a "brutal grilling" during Prime Minister's Questions on September 9, 2026, primarily concerning an escalating row over recent anti-immigration protests [1][2]. His responses are anticipated to address themes such as his government's "circuit breaker" political model, regional devolution, his 10-year economic plan, economic affordability, and his commitment to increasing defense spending to 3.5% of GDP by 2035 [2][3][4][5]. Prediction markets indicate interest in the specific terms or phrases Burnham may use during the session [6][7][8].

Sources (8)
  1. 1BBC Parliament - Prime Minister's Questions, 09/09/2026bbc.co.uk
  2. 2PMQs LIVE: Andy Burnham set to face brutal grilling as migration row explodes | Politics | News | Express.co.ukexpress.co.uk
  3. 3Andy Burnham to face Parliament as prime minister for first timebbc.com
  4. 4Government's political and legislative agenda - House of Lords Librarylordslibrary.parliament.uk
  5. 5British Prime Minister Burnham Reaffirms Commitment to Increase Defense to 3.5% of GDP by 2035 | Video | C-SPAN.orgc-span.org
  6. 6https://polymarket.com/event/what-will-andy-burnham-say-at-the-next-prime-ministers-questions-eventpolymarket.com
  7. 7https://polymarket.com/uk/event/what-will-andy-burnham-say-at-the-next-prime-ministers-questions-eventpolymarket.com
  8. 8What will Andy Burnham say at the next Prime Minister's Questions...polymarket.com

5. What emerging domestic or international events leading up to September 9 could force Prime Minister Burnham to address topics like 'NATO' or 'Ukraine'?

Date of PM's statement to House of CommonsSeptember 1, 2026 [1]
Andy Burnham's start date as Prime MinisterJuly 20, 2026 [2][3]
Focus of first Prime Minister's QuestionsEconomic policy, government debt, and historical performance [4]
Prime Minister Andy Burnham addressed a German attribution, lacking specific details. Prime Minister Andy Burnham issued a statement in the House of Commons on September 1, 2026, addressing an attribution made by Germany [1]. However, the available research does not provide specific details regarding the nature of this attribution or indicate any connection to topics such as NATO or Ukraine.
Prime Minister Burnham's early tenure focused primarily on domestic issues. Andy Burnham assumed the role of Prime Minister of the United Kingdom on July 20, 2026 [2][3]. His initial Prime Minister's Questions session on September 2, 2026, focused predominantly on internal matters, including economic policy, government debt, and historical performance, rather than international concerns like NATO or Ukraine [4]. The provided research does not contain information suggesting specific emerging domestic or international events that would compel Prime Minister Burnham to address NATO or Ukraine by September 9.
Sources (4)
  1. 1Prime Minister's Office, 10 Downing Street - GOV.UKgov.uk
  2. 2Prime Minister - GOV.UKgov.uk
  3. 3Prime Minister of the United Kingdom - Wikipediaen.wikipedia.org
  4. 4Andy Burnham's first Prime Minister's Questions: 2 September 2026youtube.com

6. What specific statements from Andy Burnham and Kemi Badenoch during the September 2 PMQs indicate that economic topics like 'Tax' or 'Affordability' will be central to the next session?

PMQs DateSeptember 2, 2026 [1][2][3]
Conservative LeaderKemi Badenoch [1][2][3][4][5]
Prime MinisterAndy Burnham [1][2][3][4][5]
Taxation and affordability dominated September 2 PMQs discussions. During the September 2, 2026, Prime Minister's Questions (PMQs), the exchange between Conservative leader Kemi Badenoch and Prime Minister Andy Burnham focused heavily on the government's fiscal policies and future spending plans. These discussions indicated that economic topics like taxation and affordability will be central to upcoming parliamentary sessions [1][2][3].
Kemi Badenoch pressed Prime Minister Burnham on future tax increases. She specifically challenged him to explicitly rule out any tax increases in the forthcoming October Budget. Badenoch criticized his spending proposals, alleging they lacked detailed funding and characterized the Prime Minister as a spendthrift [1][2][3][4][5].
Prime Minister Burnham defended strategy but declined to rule out future taxes. In response, he pointed to recent tax reductions on energy bills and for hospitality businesses as evidence of his government's economic approach. While asserting his government's commitment to fiscal responsibility, Prime Minister Burnham declined to rule out potential future tax rises, emphasizing that the Budget falls under the purview of the Chancellor, John Healey [1][2][3][4][5].
Sources (5)
  1. 1Burnham pressed on economy at first PMQs as borrowing costs surgebbc.co.uk
  2. 2Andy Burnham blames Tory legacy for leaving UK economy...theguardian.com
  3. 3UK PM Burnham faces first parliament grilling, vows to 'bring back...aljazeera.com
  4. 4Andy Burnham and Kemi Badenoch go head to head as his first PMQsyoutube.com
  5. 5Burnham's first PMQs live: PM refuses to rule out tax rises as...newswav.com

7. How does Prime Minister Burnham's rhetorical approach to 'Immigration' and 'NHS / Healthcare' compare to that of his predecessor, Keir Starmer?

Prime Minister Start DateJuly 20, 2026 [1]
Immigration Policy StanceMaintain existing policy direction from Keir Starmer [2]
Healthcare Policy StanceAdvocates for regional devolution and integrated care services [3][4][5]
Prime Minister Burnham largely maintains his predecessor's immigration stance. Andy Burnham assumed the role of Prime Minister of the United Kingdom on July 20, 2026, succeeding Keir Starmer [1][6][7]. Regarding immigration, Prime Minister Burnham's rhetorical approach is to continue the policy direction established under Keir Starmer. This involves a sustained focus on reducing net migration and tackling illegal immigration, alongside acknowledging public concerns [2].
Burnham's approach to the NHS and healthcare signifies a shift. In contrast to immigration, Prime Minister Burnham's strategy for the NHS and healthcare diverges from Starmer's more centralized focus. Burnham advocates for a "rewiring the state" strategy, highlighting greater local integration, comprehensive reform of social care, and efforts to elevate care standards to align with NHS benchmarks [3][4][5]. This advocacy represents a move towards regional devolution and integrated care services, differentiating it from Starmer's more technocratic and centralized model [3][4][5].
Sources (7)
  1. 1The Rt Hon Andy Burnham MP - GOV.UKgov.uk
  2. 2Andy Burnham pledges to show how policies will be paid for after ex...bbc.co.uk
  3. 3Government's political and legislative agenda - House of Lords Librarylordslibrary.parliament.uk
  4. 4Andy Burnham As Prime Minister: What Could It Mean for Health...kingsfund.org.uk
  5. 5Prime Minister's speech on social care - 29 July 2026 - GOV.UKgov.uk
  6. 6Why Britain is getting a new prime minister without a general electionapnews.com
  7. 7Prime Minister - GOV.UKgov.uk

8. What datasets track the frequency of keywords used by Andy Burnham and Keir Starmer during their respective PMQs sessions in 2026?

Andy Burnham first PMQs as PMSeptember 2, 2026 [1]
Keir Starmer's PM tenureEarlier in 2026 [2][3]
Centralized PMQs keyword trackingNot available for 2026 [4]
No dedicated official datasets track 2026 PMQs keyword frequency. There is no single official dataset specifically tracking the frequency of keywords used during Prime Minister's Questions (PMQs) in 2026 [4]. However, specialized parliamentary analysis projects, such as "The Burnham Programme" and "Commons Sense," manually track and archive PMQs sessions [4][5]. These projects provide breakdowns of issues discussed, summaries, and direct links to official Hansard records [4][5]. Andy Burnham held his first Prime Minister's Questions as Prime Minister on September 2, 2026, succeeding Keir Starmer, who had served as Prime Minister earlier in 2026 [1][2][3]. While these projects offer issue breakdowns, the research does not explicitly state that they track the specific frequency of keywords used by Andy Burnham and Keir Starmer during their respective 2026 PMQs sessions.
Prediction markets forecast keyword mentions, not track historical frequency. Prediction markets on platforms like Polymarket and Kalshi offer "mention" markets where traders can bet on the probability of specific keywords or phrases being uttered by the Prime Minister during scheduled sessions [6][7][8][9][10]. However, these markets are primarily designed for forecasting future mentions rather than for tracking the historical frequency of keywords used in past sessions [6][7][8][9][10].
Sources (10)
  1. 1Andy Burnham's first Prime Minister's Questions: 2 September 2026youtube.com
  2. 2Burnham's first PMQs showed a leader who wants to pleasetheguardian.com
  3. 3Andy Burnham's first PMQs exposed the limits of his fiscal room | The Burnham Programmetheburnhamprogramme.co.uk
  4. 4PMQs Archive | The Burnham Programmetheburnhamprogramme.co.uk
  5. 5Prime Minister's Questions - Commons Sensecommons-sense.co.uk
  6. 6What will Andy Burnham say at the next Prime Minister's Questions...polymarket.com
  7. 7What will Andy Burnham say at the next Prime Minister's Questions...polymarket.com
  8. 8What will Andy Burnham say during Prime Minister's Questions?coinbase.com
  9. 9What will Andy Burnham say during Prime Minister's Questions?kalshi.com
  10. 10What will Andy Burnham say at the next Prime Minister's Questions event?probsee.com

9. Based on their recent public statements, what are the primary attack lines Kemi Badenoch and the Conservative Party are likely to use against Andy Burnham on September 9?

Bus fare proposal£2 (bus fares) [1]
Energy bill cut proposal£45 (off energy bills) [1]
Defence funding target3% (by 2030) [2]
Kemi Badenoch will target Andy Burnham's economic policies and unfunded spending. Badenoch and the Conservative Party are poised to attack Andy Burnham on economic mismanagement and his proposals for spending, warning his policies risk a return to the "turmoil of the 1970s," marked by high inflation and rising mortgage rates [3]. She has accused Burnham of seeking new ways to tax the public and dismissed his proposed solutions, such as £2 bus fares and £45 off energy bills, as "small answers to big problems" [3][1]. The Conservatives further contend that Burnham's spending pledges, including an energy bill cut and ending rough sleeping, are unfunded and would lead to higher taxes, asserting that Labour typically leaves public finances in disarray [3][1][4].
Conservatives will question Burnham's accountability and readiness for leadership. Badenoch and the Conservatives have accused Burnham of "running scared of public scrutiny," citing his refusal to face questions from MPs in Parliament and his reliance on media interviews instead of parliamentary accountability [5][6][7]. They argue Burnham became Prime Minister through a "coronation not a contest" lacking a clear plan or defined policies [6]. While acknowledging Burnham as a "nice man" and a "people pleaser," Badenoch asserted that Britain requires a leader capable of making "difficult decisions," not solely focused on making everyone happy [5][8]. She has also portrayed him as "stuck in the past" [3] and criticized his past performance as Mayor of Greater Manchester, noting unfulfilled pledges such as an increase in rough sleeping despite his promise to end it [4].
Questions persist regarding Burnham's government's commitment to defense funding. Badenoch has questioned whether Burnham's government will meet the target of 3% for defence funding by 2030, highlighting "serious threats to national security that cannot wait" [2]. She has also referenced the resignation of Burnham's new Chancellor, John Healey, over concerns about defence funding [2][9].
Sources (9)
  1. 1kemibadenoch.org.uk
  2. 2perspectivemedia.com
  3. 3youtube.com
  4. 4conservatives.com
  5. 5kemibadenoch.org.uk
  6. 6nation.cymru
  7. 7youtube.com
  8. 8theguardian.com
  9. 9newstatesman.com

10. What Could Change the Odds

Key Catalysts

Andy Burnham assumed the role of Prime Minister of the United Kingdom and Leader of the Labour Party in July 2026, having taken over from Keir Starmer [1][2][3][4][5]. As Prime Minister, Burnham is the individual responsible for fielding questions from members of the House of Commons during Prime Minister's Question Time [6]. His first session of Prime Minister's Questions (PMQs) took place on September 2, 2026 [7][8][9].
During his inaugural PMQs on September 2, 2026, Burnham responded to questions from various MPs, including Ann Davies of Plaid Cymru and Kemi Badenoch of the Conservative Party [7][8][9]. He covered topics such as early prison release schemes, police funding for Cardiff, government fiscal discipline, and his vision for the country [7][8][9]. Prediction markets, specifically on Polymarket, are tracking the specific content of what Andy Burnham will say during his appearances at Prime Minister's Questions [10].

Key Dates & Catalysts

  • Expiration: September 30, 2026
  • Closes: September 30, 2026
Sources (10)
  1. 1The Rt Hon Andy Burnham MP - GOV.UKgov.uk
  2. 2Andy Burnham - Wikipediaen.wikipedia.org
  3. 3Andy Burnham – The Labour Partylabour.org.uk
  4. 4New U.K. PM Andy Burnham Vows Premiership Will Be "Circuit Breaker" Moment for Britain. | Video | C-SPAN.orgc-span.org
  5. 5British Prime Minister Andy Burnham Delivers His First Speech to...c-span.org
  6. 6Question Time | December 10, 2025 | C-SPAN.orgc-span.org
  7. 7Burnham’s first PMQs showed a leader who wants to please – but knows how to push back | PMQs | The Guardiantheguardian.com
  8. 8Andy Burnham's first Prime Minister's Questions: 2 September 2026youtube.com
  9. 9Andy Burnham pressed on borrowing costs and spending at first PMQs – UK politics live | Politics | The Guardiantheguardian.com
  10. 10What will Andy Burnham say at the next Prime Minister's Questions...polymarket.com

12. Historical Resolutions

Historical Resolutions: 11 markets in this series

Outcomes: 3 resolved YES, 8 resolved NO

Recent resolutions:

  • KXBURNHAMMENTION-26SEP02-UKRA: YES (Sep 02, 2026)
  • KXBURNHAMMENTION-26SEP02-TRUM: NO (Sep 02, 2026)
  • KXBURNHAMMENTION-26SEP02-STAR: NO (Sep 02, 2026)
  • KXBURNHAMMENTION-26SEP02-OIL: NO (Sep 02, 2026)
  • KXBURNHAMMENTION-26SEP02-NUCL: NO (Sep 02, 2026)