
· 11 min
Oct 20: Canada's rate hike goes from 15% to 73% in a day, and a three-hour scare on Iran
On Monday morning, the market gave a Bank of Canada rate hike next week about a 15% chance. By the evening it was 70, and this morning it's 73.5. A hawkish weekend from Governor Tiff Macklem, a soft inflation number that barely mattered, and a survey showing Canadians expect a lot more inflation. Plus what could still keep the bank on hold.
Then: the market on a US-Iran ceasefire through October 22 fell from 95 to 64 in an hour on Monday, the same day Iranian media claimed a US strike on a naval base, and was back at 90 three hours later. What the claim was, what Washington said, and why the fine print matters. And in Who Called It: the Tesla Roadster market finally resolved.
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Markets in this episode
Odds at snapshot:
Bank of Canada Decision in October?
▲ +58 today+61 7 days
▼ −57 today−61 7 days
24h volume: $118K
US-Iran ceasefire continues through...?
▼ −4 today
▼ −5 today
24h volume: $1.7M
Transcript
Read the full transcript
Cold open
Maya: Monday morning, the market gave a Bank of Canada rate hike fifteen percent.
Daniel: By Monday night, seventy. Nobody even changed the date of the meeting.
Maya: This is The Poly Brief. It's Tuesday, October twentieth. I'm Maya.
Daniel: And I'm Daniel. Every day we take the biggest moves on Polymarket, show you where the odds stand, and ask: why is the market betting this way?
Maya: Today: Canada's central bank, and a three hour scare on Iran. But first, a bill came due.
Who called it?
Maya: Who called it? Last Friday, the market gave the Tesla Roadster a ninety seven percent chance of doing zero to sixty in under one second.
Daniel: And overnight it finally resolved. Yes. After four days of back and forth disputes on UMA, the oracle Polymarket uses to settle bets.
Maya: So the market called it.
Daniel: It did. Tesla said zero point eight one seconds and posted video of the run on X, with the time. And the rules counted an official Tesla published time for the live run.
Daniel: What it tells us: read the rules on what counts as proof before the argument starts. There's still no independent test. For now, it's Tesla's number.
Maya: Almost seven million dollars traded, on a car that won't be on the road until twenty twenty eight.
Story 1: Bank of Canada
Maya: The board. Will the Bank of Canada raise rates on Wednesday, October twenty eighth? A quarter point hike: seventy three and a half percent. No change: twenty seven.
Daniel: The hike is up fifty eight points in one day. On Monday at nine in the morning, Israel time, it was fifteen. It's a small market, about three hundred thousand dollars in total.
Maya: Fifteen to seventy three. What happened?
Daniel: Start with the weekend. On Saturday, Governor Tiff Macklem spoke to reporters by phone from Bangkok. He said the bank's new inflation outlook will be quite a bit higher than the one from July.
Daniel: And he framed the decision like this: is inflation likely to come back down to target on its own, or will the bank have to raise interest rates to influence the path?
Maya: That's not exactly subtle.
Daniel: Not for a central banker. By Saturday evening, Bloomberg said swap traders had the odds of a hike at over one third.
Daniel: On Polymarket, the first jump came early Monday, fifteen to thirty two, while Toronto was still asleep. No data came out at that hour. Our best reading: the market catching up with the weekend. A timing match, not a confirmed cause.
Maya: And the second jump?
Daniel: Thirty three until about six in the evening, Israel time. Seventy by nine at night. A peak of eighty four at around two in the morning.
Maya: So why does the market buy a hike now? Give me the reasons.
Daniel: Reason one: Canadians expect more inflation. The bank's consumer survey came out Monday at six thirty in the evening, Israel time. Five year inflation expectations: three point nine one percent. Up from three point three nine. The highest since the spring of twenty twenty two.
Daniel: And more than forty percent of firms facing unusually big cost increases plan to pass them on to customers within a year.
Daniel: Reason two: the big forecasters started moving. Desjardins switched its call on Monday: we now expect the Bank of Canada to raise its policy rate by twenty five basis points later this month. Scotiabank's Derek Holt: we forecast a hike next week.
Daniel: Reason three: the bond market agrees. The Globe and Mail reported swaps pricing a seventy five percent chance on Monday, up from under fifty last week. And Canada's two year yield rose ten basis points, more than double the move in the US.
Maya: Hang on. Wasn't there an inflation number on Monday too?
Daniel: There was, and it was a bit soft. September inflation was three point one percent. Economists expected three point two. Gasoline was up almost twenty eight percent from a year ago. Without gasoline, two point two.
Maya: So the actual inflation number came in lower, and the odds of a hike kept climbing.
Daniel: Pretty much. The market cared more about what people expect inflation to be than what it was.
Maya: Quick background, for anyone just joining.
Daniel: The Bank of Canada's rate is two and a quarter percent, unchanged for seven meetings in a row. The last time it hiked was July twenty twenty three. The US Fed already hiked in September, and for the twenty eighth, the market gives the Fed eighty five and a half percent to sit still.
Maya: Now the other side. What could keep the bank on hold?
Daniel: First, most economists. The Globe says most of the notes on Monday still pointed to a hold. BMO's Douglas Porter said the inflation report does nothing to advance the case for interest rate hikes. CIBC's Andrew Grantham: there is little rush.
Daniel: Second, the economy. In September Canada lost sixty eight thousand jobs, and unemployment rose to six and a half percent. After that report, the odds of an October hike fell to about twenty five percent.
Daniel: Third, trade. Most answers in the bank's business survey came in before trade talks with the US broke down in late August. The later answers were weaker.
Maya: What to watch. Retail sales on Friday. Then the decision on Wednesday the twenty eighth, at a quarter to ten in the morning in Ottawa, with a full new set of forecasts. And we'll check who called it the next morning.
Maya: Bottom line: the market flipped in a day, on what Canadians expect, not on what they paid. Now the bank has eight days to decide if it agrees.
Daniel: And if you want to hear what happens next, hit follow. It's free, and it's faster than waiting for a central bank.
Bridge
Maya: Daniel, my weather app said eighty percent chance of rain yesterday.
Daniel: And?
Maya: Not a drop. I carried an umbrella around Tel Aviv all day like an idiot.
Daniel: Maya, eighty percent means one day in five you carry it for nothing.
Maya: I know. I tell people that every single morning on this show.
Daniel: And it still doesn't help with the umbrella.
Maya: No. But it helps with our next market. One that went from almost certain to a lot less certain, in about an hour.
Story 2: Iran
Maya: Story two. The board. Will the ceasefire between the US and Iran hold? In this market, that means no US air or missile strike on Iranian land. Through October twenty second: ninety and a half percent. Through October thirty first: seventy eight.
Daniel: Through the end of November, forty two and a half. Through the end of the year, thirty one. Almost nineteen million dollars traded on this market.
Maya: We were here on October eleventh. What did we say?
Daniel: Through October thirty first, seventy seven and a half. Today, seventy eight. Basically the same number. But Monday evening, in between, was not quiet.
Maya: What happened?
Daniel: The October twenty second contract sat at about ninety five all day. Then, around seven in the evening Israel time, sixty four. In one hour. By eight, seventy four. By ten at night, back above ninety.
Daniel: On Monday, Iranian media said US forces fired two light projectiles at an anti aircraft gun inside the Konarak naval base, on the Gulf of Oman. It said two Iranian soldiers were wounded.
Daniel: A US official denied that American forces attacked the base. That's according to Shafaq News, citing CNN.
Maya: And the timing?
Daniel: The crash and the rebound fit that same afternoon. We couldn't pin the exact minute the claim came out from a source we use. So the timing matches. That is not proof.
Maya: Why would traders care so much about two small projectiles?
Daniel: Because of the fine print. The market counts an air strike or a missile strike that hits Iranian land. Naval gunfire, intercepted munitions, small drones, those don't count. And when sources conflict, the market can wait up to three days and then go with the totality of the reporting.
Daniel: And the last US strikes on Iranian soil that CENTCOM announced were on September first. So a real one would have been the first in seven weeks.
Maya: So why is the near term still around ninety, but the end of the year only about thirty?
Daniel: Reason one: a promise with a date on it. On October eighth, President Trump said the US will not be attacking Iran at any time prior to the midterm elections. Those are on November third. The near dates sit inside that promise. The later ones don't.
Daniel: Reason two: the preparations. Axios reported on the thirteenth that Israel's chief of staff discussed with the head of the US Joint Chiefs resuming full scale fighting within the next three weeks. The White House called that report false.
Daniel: Reason three: the talks. On the thirteenth a US official told Axios they're not really dead, but they're not really alive. CBS on Monday: at a standstill. Iran wants to start with reopening the Strait of Hormuz. The US wants to start with the nuclear program.
Daniel: And the background is loud. The UK's maritime agency counted ten attacks on ships near the strait last week. And on Monday, Defense Secretary Pete Hegseth made an unannounced visit to Israel and met Prime Minister Netanyahu.
Maya: The other side. What could change this, in either direction?
Daniel: Sooner: one incident. Israeli analyst Danny Citrinowicz told JTA: without a diplomatic settlement, the chances of escalation are very high. The Times of Israel reports a third US carrier is expected in the region soon.
Daniel: Later, or never: a deal. Iran's foreign minister says its plan to reopen the strait is still on the table. And the Jerusalem Post analysis is that a standoff is still the most likely scenario, even if the chances of renewed conflict jump after the midterms.
Maya: What to watch. Israel votes on Tuesday the twenty seventh. The US votes on November third. And on November first we'll check who called the October thirty first date.
Maya: Bottom line: one unconfirmed claim took thirty points off this market in an hour. Within three hours, almost all of them were back. The real date on this market is November third.
Close
Maya: That's The Poly Brief for today. Every article and number is linked in the description.
Daniel: And a reminder: these odds are prices, not prophecies. Nothing here is investment advice. A seventy three percent hike means that about one time in four, the Bank of Canada stays put.
Maya: If you liked it, follow or subscribe, give us a rating, and send it to the friend who carries an umbrella at eighty percent.
Daniel: We're here every morning. See you tomorrow!
Sources
- Polymarket: Will the Tesla Roadster's 0-60 time be less than 1 second? (rules, resolution) (2026-10-20)
- The Drive: Tesla Roadster Coming in 2028: 0-60 in 0.81s, Active Aero, and 'Attitude Control Thrusters' (2026-10-15)
- Ubergizmo: Tesla Roadster Demo: Upside-Down Suction, Mid-Air Corkscrews, and a Thruster-Assisted 0.81s 0-60 (2026-10-16)
- ProPakistani: Tesla's Long-Delayed Roadster Can Actually Fly, There's a Catch (2026-10-16)
- Canadian Mortgage Trends (Bloomberg): Macklem sees higher oil prices boosting growth, inflation (2026-10-17)
- FXStreet (via Reuters): BoC's Macklem says Canada has not raised rates yet as energy prices pose challenges (2026-10-16)
- Statistics Canada: Consumer Price Index, September 2026 (2026-10-19)
- BNN Bloomberg (The Canadian Press): Inflation data shows high energy prices still contained, for now: economists (2026-10-19)
- Bank of Canada: Business Outlook Survey, Third Quarter of 2026 (2026-10-19)
- Canadian Mortgage Trends (Bloomberg): BOC surveys show higher inflation expectations, passthrough (2026-10-19)
- investingLive: Bank of Canada Q3 business outlook survey -0.33 vs -0.38 prior (2026-10-19)
- finwire (The Globe and Mail): Markets now pricing in strong odds of BoC rate hike next week (2026-10-19)
- BNN Bloomberg (The Canadian Press): Sentiment improved but new tariffs weigh on business outlook: BoC report (2026-10-19)
- Wealth Professional: Job losses push October Bank of Canada hike odds down to 25% (2026-10-13)
- Bank of Canada: Policy interest rate (2026-10-20)
- Bank of Canada: Upcoming events (2026-10-20)
- Federal Reserve: Federal Reserve issues FOMC statement (2026-09-16)
- Shafaq News: US denies reported strike on Iranian naval base (2026-10-19)
- Polymarket: US-Iran ceasefire continues through...? (rules) (2026-10-20)
- CENTCOM: CENTCOM Completes Strikes on IRGC Targets in Iran (2026-09-01)
- KBTX (AP): Trump says US will not resume military strikes on Iran before midterm elections (2026-10-08)
- Axios: Inside Trump, Netanyahu's dilemma: Strike Iran before elections or wait (2026-10-13)
- CBS News: Live Updates: Russian diplomat condemns U.S.-Israel attacks in Tehran visit as Netanyahu tells Trump 'we have a job to finish' (2026-10-19)
- Axios: Scoop: Hegseth meets Netanyahu on unannounced Israel visit (2026-10-19)
- The Times of Israel (JTA): A renewed Iran war is only a matter of time, Israeli experts warn (2026-10-19)
- The Jerusalem Post: Return to war with Iran after US midterm elections may be increasingly likely - analysis (2026-10-14)
- Fox News: Trump warns Russia could join forces with Iran as Tehran dares US to strike again: 'Try your luck' (2026-10-18)