The Fed Stayed Silent and Hike Bets Halved. The Rules Decided Which Headlines Counted.

The Fed said nothing all week.

Kalshi's October hike contract still fell by more than half.

Gulf attacks lifted Brent to near $114.60 early Friday. Polymarket's Iran ceasefire bets fell on one report and bought most of it back. A tied poll in Brazil left the runoff price almost where it started.

Each headline faced the same test. Did it change what the contract pays on?

Loud headlines often failed it. Quiet trading sometimes moved prices anyway.

Here are the six that explain the week.

The Fed Said Nothing.

Traders Did the Talking.

CONTRACT: Kalshi's October rate-hike contract

START-OF-WEEK PRICE: Near 13 cents.

END-OF-WEEK PRICE: Near 6 cents late Thursday.

CATALYST: None from the Fed, which is in its pre-meeting quiet period. About 160,000 contracts were bought in 35 minutes on Wednesday, lifting the price from 11 cents to 13 for roughly $19,000. On Thursday, traders cut it from 12 cents to 6. About 95% of 184,900 contracts traded by 1:45 p.m. were initiated by traders betting against a hike.

RESOLUTION CONDITION: The contract pays only on a quarter-point hike at the Oct. 28 decision. A December hike pays nothing here.

WHAT THE MARKET ACTUALLY SAID: No Fed official spoke. Jobless claims fell to 194,000, below forecasts, which pointed the other way. The selling was one-sided, so the move was traders' own read. Bonds moved the same way, and the 10-year yield closed below 5% that day. The contract now sits at a third of its 18-cent price before the Oct. 14 CPI report. A Reuters poll found all 100 economists expect a December hike. Traders repriced the date, and 6 cents still leaves about a one-in-seventeen chance of October.

Oil Counted the Strikes.

The Ceasefire Bet Did Not.

CONTRACT: Polymarket's Iran ceasefire ladder, Oct. 24 and Nov. 30 expiries.

START-OF-WEEK PRICE: Oct. 24 near 93.5 cents before Wednesday afternoon. Nov. 30 near 46.5 cents.

END-OF-WEEK PRICE: Oct. 24 near 92.5 cents early Friday. Nov. 30 near 38 cents Thursday morning.

CATALYST: Iranian media reported explosions near Sirik on Wednesday afternoon. An Israeli television report claimed U.S. forces struck a missile launcher there, and no U.S. confirmation followed. The Oct. 24 contract fell to 72 cents. Aramco told staff to leave its Dhahran headquarters. The White House said Thursday the U.S. will not attack Iran before the Nov. 3 midterms, ABC News reported.

RESOLUTION CONDITION: Each contract resolves No only on a U.S. air or missile strike that hits Iranian territory. Attacks on Saudi Arabia do not count.

WHAT THE MARKET ACTUALLY SAID: Brent climbed on Saudi attacks the ladder does not count. The Oct. 24 bet bought back most of its drop, while the Nov. 30 line kept about 8 points of it. The Oct. 22 contract passed its deadline without settling. Its status showed "disputed" early Friday, with Yes near 98 cents. A 98-cent price is not a ruling. Oil costs are already in company guidance. Procter & Gamble (PG) expects higher costs, including energy and freight, to cut about $1.4 billion from profit.

The Price Moved Before the Story.

CONTRACT: Polymarket's contract on a U.S. announcement ending the Iran blockade

START-OF-WEEK PRICE: Oct. 31 near 6.5 cents early Monday. Dec. 31 near 34 cents.

END-OF-WEEK PRICE: Oct. 31 between 10 and 12 cents late Tuesday. Dec. 31 near 38 cents.

CATALYST: The October line nearly doubled to about 12 cents before 9 a.m. Monday, while Russia's foreign minister visited Tehran. No U.S. official had signaled any easing. On Tuesday, Brent covered about $6 as an unconfirmed report said Qatar and Pakistan had offered a compromise. A diplomat in the talks called reports of a near deal inaccurate.

RESOLUTION CONDITION: The contract pays only on an official U.S. announcement ending, lifting or suspending the blockade. Partial carve-outs and conditional pledges do not count.

WHAT THE MARKET ACTUALLY SAID: Most of the year-end contract's gain came before the peace-plan report. It rose from about 34.5 cents to 38 by 9 a.m. Tuesday. The October line jumped to 14 cents on the report and gave it back after the denial. Traders added weight to November and December, not to this month. Each contract carries under $150,000 of liquidity, so a few orders can move it. Oil's swings reach company outlooks first. United Airlines (UAL) puts its fuel price about 45 cents a gallon above analysts' assumption.

Moscow Named a Month.

Traders Priced It.

CONTRACT: Polymarket's contracts on Russia-Ukraine talks by Nov. 30 and by year-end.

START-OF-WEEK PRICE: Year-end at 43 to 44 cents before dawn Wednesday.

END-OF-WEEK PRICE: Year-end near 72 cents Thursday morning. Nov. 30 near 63 cents. The October contract fell sharply.

CATALYST: Vladimir Putin met U.S. envoy Steve Witkoff on Wednesday. Kremlin aide Yuri Ushakov then said Russia is ready "in principle" for three-way talks in November. The year-end contract reached about 80 cents after Volodymyr Zelenskyy backed talks.

RESOLUTION CONDITION: Each pays only on an in-person meeting of the two sides, direct or mediated. Humanitarian-only talks do not count.

WHAT THE MARKET ACTUALLY SAID: The Kremlin offered a month, with no date or venue. Kyiv says early November, and Moscow says around Nov. 10. The gap of about 9 points between the November and year-end lines is the market's price on slippage. The year-end book carries about $54,000 of liquidity. Neither price is evidence that a meeting will happen.

An Announcement Is Not a Deal.

CONTRACT: Polymarket's contracts on an announced merger of SpaceX (SPCX) and Tesla (TSLA) in 2026 and in 2027.

START-OF-WEEK PRICE: Each traded within about 2 points of its Wednesday-morning level before Tuesday evening's call.

END-OF-WEEK PRICE: Near 7 a.m. Wednesday, 2026 at 19 to 20 cents and 2027 at 67 to 69 cents.

CATALYST: On SpaceX's earnings call, Elon Musk said both companies formed committees of independent directors to discuss a merger. The committees "have not reached agreement on the terms of any transaction," he said. Tesla approval faces "quite a high hurdle," he added.

RESOLUTION CONDITION: Each pays on an official announcement of a deal, even if the deal never closes.

WHAT THE MARKET ACTUALLY SAID: Both contracts jumped on the remarks. The 2026 bet reversed within about an hour, rose overnight on no identified news, then slipped back. The 2027 bet kept about a third of its gain. Each book holds about $27,000 to $40,000, so small orders move it. The rule pays on a headline, not a closing or a shareholder vote.

A Tied Poll, an Unmoved Price.

CONTRACT: Polymarket's contract on a Flávio Bolsonaro win in Brazil

START-OF-WEEK PRICE: Near 77 cents Monday.

END-OF-WEEK PRICE: Near 77 cents early Friday.

CATALYST: The first runoff debate had no clear winner. Four polls Monday had Flávio ahead by 0.6 to 4 points of valid votes. On Thursday, Datafolha showed the race tied at 50% each in valid votes, with a 2-point margin of error.

RESOLUTION CONDITION: The contract pays on the winner, based on a consensus of credible reporting. If results are ambiguous, the official Superior Electoral Court count decides.

WHAT THE MARKET ACTUALLY SAID: Last week the price fell about 9 points as polls narrowed. This week a tied poll left it less than a point below its level before the release. A 77-cent price still implies about 3-to-1 odds in a race the latest poll calls even. That is a claim traders are making about the polls, not evidence of the result.

The Fed said nothing, and its October hike bet still fell by more than half. Gulf strikes lifted oil, and the ceasefire contracts do not count attacks on Saudi Arabia. A year-end blockade bet moved before the story did. A tied poll left Brazil's price where it was.

Headlines arrived all week.

The rulebook decided which ones counted.

Capital moves early. Coverage catches up. The gap between the two is worth watching.