**Traders assign a 94.9% implied probability to “No” because the Chagos Islands sovereignty transfer remains stalled with no verified US acquisition process underway.** The UK-Mauritius agreement signed in May 2025, which would have transferred the archipelago while securing a 99-year lease on Diego Garcia for the joint military base, lost US backing after President Trump withdrew support in April 2026. Legislation in the UK Parliament was subsequently shelved. Trump criticized the handover in January 2026 as an “act of great stupidity,” linking it to broader national security concerns and his interest in acquiring Greenland, though he had earlier endorsed the deal following interagency review. A June 2026 report noted internal discussion of a possible direct US purchase from Mauritius to bypass UK involvement, but this remained one of several options under consideration and produced no formal announcement or negotiations. As of September 2026, the situation continues to involve competing claims—including from the Maldives—and ongoing but inconclusive UK-Mauritius contacts under new Prime Minister Andy Burnham, without any confirmed US acquisition timeline or action before 2027. The absence of concrete diplomatic or legislative movement sustains the strong market consensus against an announcement in the remaining months of 2026.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill Trump announce an acquisition of part of the Chagos Islands before 2027?
Will Trump announce an acquisition of part of the Chagos Islands before 2027?
3% chance
NEW
NEW
Dec 31, 2026
3% chance
NEW
NEW
Dec 31, 2026
This market will resolve to "Yes" if the United States officially announces that at least some territory on the Chagos Islands will come under US sovereignty by December 31, 2026, 11:59 PM ET. Otherwise this market will resolve to "No".
Sovereignty is defined as the transfer of any of the Chagos Archipelago from either the United Kingdom or Mauritius to being under the formal governance or jurisdiction of the United States, either as a state, territory, or other classification within the US system. Basing rights, military leases, or access agreements alone do not constitute sovereignty transfer.
An official announcement made by the United States and either the United Kingdom or Mauritius that territory within the Chagos Archipelago will come under US sovereignty will qualify, even if the actual transfer of sovereignty is yet to occur or if such announcement is pending ratification, parliamentary approval, or other conditional legislative steps. Only announcements of official agreements or actions (e.g. executive order, signed legislation, etc.) will count - mere posts on Social Media will not.
The resolution source for this market will be official information from the governments of the US, United Kingdom, or Mauritius, however a consensus of credible reporting confirming that land on the Chagos Archipelago has come under U.S. sovereignty will also qualify.**Traders assign a 94.9% implied probability to “No” because the Chagos Islands sovereignty transfer remains stalled with no verified US acquisition process underway.** The UK-Mauritius agreement signed in May 2025, which would have transferred the archipelago while securing a 99-year lease on Diego Garcia for the joint military base, lost US backing after President Trump withdrew support in April 2026. Legislation in the UK Parliament was subsequently shelved.
Trump criticized the handover in January 2026 as an “act of great stupidity,” linking it to broader national security concerns and his interest in acquiring Greenland, though he had earlier endorsed the deal following interagency review. A June 2026 report noted internal discussion of a possible direct US purchase from Mauritius to bypass UK involvement, but this remained one of several options under consideration and produced no formal announcement or negotiations.
As of September 2026, the situation continues to involve competing claims—including from the Maldives—and ongoing but inconclusive UK-Mauritius contacts under new Prime Minister Andy Burnham, without any confirmed US acquisition timeline or action before 2027. The absence of concrete diplomatic or legislative movement sustains the strong market consensus against an announcement in the remaining months of 2026.
This market will resolve to "Yes" if the United States officially announces that at least some territory on the Chagos Islands will come under US sovereignty by December 31, 2026, 11:59 PM ET. Otherwise this market will resolve to "No".
Sovereignty is defined as the transfer of any of the Chagos Archipelago from either the United Kingdom or Mauritius to being under the formal governance or jurisdiction of the United States, either as a state, territory, or other classification within the US system. Basing rights, military leases, or access agreements alone do not constitute sovereignty transfer.
An official announcement made by the United States and either the United Kingdom or Mauritius that territory within the Chagos Archipelago will come under US sovereignty will qualify, even if the actual transfer of sovereignty is yet to occur or if such announcement is pending ratification, parliamentary approval, or other conditional legislative steps. Only announcements of official agreements or actions (e.g. executive order, signed legislation, etc.) will count - mere posts on Social Media will not.
The resolution source for this market will be official information from the governments of the US, United Kingdom, or Mauritius, however a consensus of credible reporting confirming that land on the Chagos Archipelago has come under U.S. sovereignty will also qualify.
Sovereignty is defined as the transfer of any of the Chagos Archipelago from either the United Kingdom or Mauritius to being under the formal governance or jurisdiction of the United States, either as a state, territory, or other classification within the US system. Basing rights, military leases, or access agreements alone do not constitute sovereignty transfer.
An official announcement made by the United States and either the United Kingdom or Mauritius that territory within the Chagos Archipelago will come under US sovereignty will qualify, even if the actual transfer of sovereignty is yet to occur or if such announcement is pending ratification, parliamentary approval, or other conditional legislative steps. Only announcements of official agreements or actions (e.g. executive order, signed legislation, etc.) will count - mere posts on Social Media will not.
The resolution source for this market will be official information from the governments of the US, United Kingdom, or Mauritius, however a consensus of credible reporting confirming that land on the Chagos Archipelago has come under U.S. sovereignty will also qualify.
Market Opened: Jun 10, 2026, 11:33 AM ET
Volume
$2,678End Date
Jan 1, 2027Market Opened
Jun 10, 2026, 11:33 AM ETResolver
0x65070BE91...This market will resolve to "Yes" if the United States officially announces that at least some territory on the Chagos Islands will come under US sovereignty by December 31, 2026, 11:59 PM ET. Otherwise this market will resolve to "No".
Sovereignty is defined as the transfer of any of the Chagos Archipelago from either the United Kingdom or Mauritius to being under the formal governance or jurisdiction of the United States, either as a state, territory, or other classification within the US system. Basing rights, military leases, or access agreements alone do not constitute sovereignty transfer.
An official announcement made by the United States and either the United Kingdom or Mauritius that territory within the Chagos Archipelago will come under US sovereignty will qualify, even if the actual transfer of sovereignty is yet to occur or if such announcement is pending ratification, parliamentary approval, or other conditional legislative steps. Only announcements of official agreements or actions (e.g. executive order, signed legislation, etc.) will count - mere posts on Social Media will not.
The resolution source for this market will be official information from the governments of the US, United Kingdom, or Mauritius, however a consensus of credible reporting confirming that land on the Chagos Archipelago has come under U.S. sovereignty will also qualify.**Traders assign a 94.9% implied probability to “No” because the Chagos Islands sovereignty transfer remains stalled with no verified US acquisition process underway.** The UK-Mauritius agreement signed in May 2025, which would have transferred the archipelago while securing a 99-year lease on Diego Garcia for the joint military base, lost US backing after President Trump withdrew support in April 2026. Legislation in the UK Parliament was subsequently shelved.
Trump criticized the handover in January 2026 as an “act of great stupidity,” linking it to broader national security concerns and his interest in acquiring Greenland, though he had earlier endorsed the deal following interagency review. A June 2026 report noted internal discussion of a possible direct US purchase from Mauritius to bypass UK involvement, but this remained one of several options under consideration and produced no formal announcement or negotiations.
As of September 2026, the situation continues to involve competing claims—including from the Maldives—and ongoing but inconclusive UK-Mauritius contacts under new Prime Minister Andy Burnham, without any confirmed US acquisition timeline or action before 2027. The absence of concrete diplomatic or legislative movement sustains the strong market consensus against an announcement in the remaining months of 2026.
This market will resolve to "Yes" if the United States officially announces that at least some territory on the Chagos Islands will come under US sovereignty by December 31, 2026, 11:59 PM ET. Otherwise this market will resolve to "No".
Sovereignty is defined as the transfer of any of the Chagos Archipelago from either the United Kingdom or Mauritius to being under the formal governance or jurisdiction of the United States, either as a state, territory, or other classification within the US system. Basing rights, military leases, or access agreements alone do not constitute sovereignty transfer.
An official announcement made by the United States and either the United Kingdom or Mauritius that territory within the Chagos Archipelago will come under US sovereignty will qualify, even if the actual transfer of sovereignty is yet to occur or if such announcement is pending ratification, parliamentary approval, or other conditional legislative steps. Only announcements of official agreements or actions (e.g. executive order, signed legislation, etc.) will count - mere posts on Social Media will not.
The resolution source for this market will be official information from the governments of the US, United Kingdom, or Mauritius, however a consensus of credible reporting confirming that land on the Chagos Archipelago has come under U.S. sovereignty will also qualify.
Sovereignty is defined as the transfer of any of the Chagos Archipelago from either the United Kingdom or Mauritius to being under the formal governance or jurisdiction of the United States, either as a state, territory, or other classification within the US system. Basing rights, military leases, or access agreements alone do not constitute sovereignty transfer.
An official announcement made by the United States and either the United Kingdom or Mauritius that territory within the Chagos Archipelago will come under US sovereignty will qualify, even if the actual transfer of sovereignty is yet to occur or if such announcement is pending ratification, parliamentary approval, or other conditional legislative steps. Only announcements of official agreements or actions (e.g. executive order, signed legislation, etc.) will count - mere posts on Social Media will not.
The resolution source for this market will be official information from the governments of the US, United Kingdom, or Mauritius, however a consensus of credible reporting confirming that land on the Chagos Archipelago has come under U.S. sovereignty will also qualify.
Volume
$2,678End Date
Jan 1, 2027Market Opened
Jun 10, 2026, 11:33 AM ETResolver
0x65070BE91...**Traders assign a 94.9% implied probability to “No” because the Chagos Islands sovereignty transfer remains stalled with no verified US acquisition process underway.** The UK-Mauritius agreement signed in May 2025, which would have transferred the archipelago while securing a 99-year lease on Diego Garcia for the joint military base, lost US backing after President Trump withdrew support in April 2026. Legislation in the UK Parliament was subsequently shelved. Trump criticized the handover in January 2026 as an “act of great stupidity,” linking it to broader national security concerns and his interest in acquiring Greenland, though he had earlier endorsed the deal following interagency review. A June 2026 report noted internal discussion of a possible direct US purchase from Mauritius to bypass UK involvement, but this remained one of several options under consideration and produced no formal announcement or negotiations. As of September 2026, the situation continues to involve competing claims—including from the Maldives—and ongoing but inconclusive UK-Mauritius contacts under new Prime Minister Andy Burnham, without any confirmed US acquisition timeline or action before 2027. The absence of concrete diplomatic or legislative movement sustains the strong market consensus against an announcement in the remaining months of 2026.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions