Recent floor crossings have positioned Prime Minister Mark Carney's Liberals just one seat shy of a House of Commons majority, following Conservative MP Marilyn Gladu's defection on April 8 and NDP MP Lori Idlout's switch in March, amid reports of up to 10 opposition MPs in talks. Trader consensus reflects a 46% implied probability of another MP changing parliamentary caucuses by April 30—rising to 60% by May 31—driven by Conservative Leader Pierre Poilievre's caucus challenges, NDP funding risks at six seats, and external pressures like U.S. trade threats under President Trump that a majority could mitigate. No crossings in the past 10 days, but potential confidence votes or byelections loom as catalysts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
April 30
22%

May 15
36%

May 31
49%
$15 Vol.

April 30
22%

May 15
36%

May 31
49%
“Changes parties” refers to an MP ceasing to be a member of one political party’s parliamentary caucus and joining another political party’s parliamentary caucus. A transition from independent status into a party’s caucus, or from a party’s caucus to independent status will not count.
The primary resolution source for this market will be a consensus of credible reporting.
Market Opened: Apr 16, 2026, 10:46 AM ET
Resolver
0x65070BE91...“Changes parties” refers to an MP ceasing to be a member of one political party’s parliamentary caucus and joining another political party’s parliamentary caucus. A transition from independent status into a party’s caucus, or from a party’s caucus to independent status will not count.
The primary resolution source for this market will be a consensus of credible reporting.
Resolver
0x65070BE91...Recent floor crossings have positioned Prime Minister Mark Carney's Liberals just one seat shy of a House of Commons majority, following Conservative MP Marilyn Gladu's defection on April 8 and NDP MP Lori Idlout's switch in March, amid reports of up to 10 opposition MPs in talks. Trader consensus reflects a 46% implied probability of another MP changing parliamentary caucuses by April 30—rising to 60% by May 31—driven by Conservative Leader Pierre Poilievre's caucus challenges, NDP funding risks at six seats, and external pressures like U.S. trade threats under President Trump that a majority could mitigate. No crossings in the past 10 days, but potential confidence votes or byelections loom as catalysts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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