Tankers, Hikes & Zombie Market

🌟 Today's Report

📉 Polymarket's September Fed contract: rate-hike odds slid 40.5% → 28.5% after July's inflation report came in cool

🛢️ Strait of Hormuz: odds of normal traffic by August 31 sank 3.8% → 0.75%, with last week's ship count priced at just 25–49 total

🗳️ Florida's GOP primary: over $2 million traded in 24 hours as voting opened, with Byron Donalds at 99%

🧟 Ethiopia's undead market: $281 million traded on a prime-minister contract whose resolution date passed 11 weeks ago

_{“USS Taylor passes a tanker in the Strait of Hormuz, Operation Desert Shield" by U.S. Department of Defense via Wikimedia Commons, public domain.}

📈 Big Swings

The Hike That Got Marked Down

Six days ago, Polymarket traders gave the Federal Reserve a 40.5% chance of raising rates at the September 15–16 meeting. This morning, that contract sits at 28.5%, while "no change" climbed from 58.5% to 70.5%. About $36.8 million has traded on the September decision alone.

The trigger was Wednesday's Consumer Price Index report: inflation rose just 0.1% in July, a 3.4% annual rate, down from 3.5% in June, with energy prices actually falling 1.5% on the month. Core inflation, the Fed's preferred yardstick, ticked down to 2.5%. For a central bank that's been frozen at 3.50–3.75% since June — three officials dissented for an immediate hike at July's meeting — that's the first print in months that argues for doing nothing.

Zoom out and the week looks like a pivot, not the trend. Back in May, Polymarket priced a 2026 hike at 37%; by late July that hit 64%. This week's CPI took the edge off, but a hike this year still sits near a coin flip: 50.5% on Polymarket, with Kalshi's parallel contract a few points higher at 53%. The stakes are concrete: a hold keeps borrowing costs and risk assets on their current path, while a surprise hike reprices mortgages, equities, and crypto in a day. One cool report moves the September meeting. It doesn't retire the question.

Seventy-Three Ships a Day, Down to a Handful

Longtime readers know this storyline: we covered the oil shock when it started in March. Five months later, the Strait of Hormuz, the narrow channel that carries about a fifth of the world's oil, is still functionally closed, and this week the market finally stopped pretending otherwise.

The contract asking whether Hormuz traffic returns to normal by August 31 collapsed from 3.8% to 0.75%, on $22 million traded. The longer-dated versions fell too: December 31 dropped from 48.5% to 36.5% on the week. Line the dates up left to right, September 15 at 3.1%, October 31 at 16.5%, November 30 at 25%, December 31 at 36.5%, and you get the market's honest answer: not soon. For readers, the implication is direct — the risk premium stays in crude, and the relief the Fed just found in July's inflation data has a weak spot.

The physical data backs the skeptics. Vessel-tracker Kpler counted as few as five vessel transits in a day this month, against a pre-war norm of 130 to 140 ships, and IMF PortWatch logged exactly one transit on August 9. Polymarket's own weekly count market priced last week's total at 95% in the 25–49 ship range. Brent crude sat near $87 as of last week, and Washington says it can keep its naval blockade of Iran going indefinitely. The August 31 contract expires in 13 days. It needs a miracle.

_{The Ever Given, sideways in the Suez Canal in 2021, photographed from the International Space Station. One chokepoint, visible from orbit. NASA via Wikimedia Commons, public domain.}

AOC Takes the Crown, on One Exchange

The biggest political market on Polymarket, $1.26 billion traded on the 2028 Democratic nomination, flipped its frontrunner this week: Alexandria Ocasio-Cortez climbed from 15% to 20% while Gavin Newsom slid from 17.7% to 15.7%. NewsNation flagged the crossover on August 13, a week in which the congresswoman drew a fresh wave of attention by announcing, and documenting, that she's freezing her eggs.

Two caveats before anyone crowns her. Kalshi's nomination market still has Newsom on top, per NewsNation's reporting, so this is a one-exchange coronation. And in the general-election market, both Democrats trail JD Vance, who holds steady around 21%. A favorite this far out, with no declared candidates, measures name recognition more than electability. But $1.26 billion in open positions means these prices now drive the coverage they describe — campaigns and donors watch them, and react to them.

👽 Weird Markets

The Zombie Market of Addis Ababa

Ethiopia held its general election on June 1. The Polymarket contract on who becomes the next prime minister was supposed to resolve shortly after. Polymarket still lists it as open, 11 weeks past its scheduled resolution date, and it has become the platform's strangest parking lot: $281 million in lifetime volume, with incumbent Abiy Ahmed at 96.6%.

Traders put another $890,000 through the Belete Molla contract in the last 24 hours. Belete Molla is at 0.35%. The recent tape on these longshots is mostly tiny "No" buys around 99.6 cents, punctuated by a few large matched pairs, which is to say people are deliberately locking up money for weeks to collect the final fraction of a penny. That's not a prediction market anymore. That's a savings account with a flag on it. The takeaway for anyone trading long-dated contracts: resolution risk is real, and your capital can be parked indefinitely while a platform decides what to do.

The Musk Abacus

Back in October we covered the markets that count Elon Musk's weekly tweets. They're still running, and they're not small: the August 14–21 tally has $1.4 million traded, with $440,000 of that in the last 24 hours.

The board prices his output in 20-tweet buckets: 140–159 leads at 38.5%, followed by 160–179 at 25.5% and 120–139 at 20.6%. Somewhere, a quant is modeling a man's posting cadence the way the USDA models corn yield. The week resolves Friday, so if he goes quiet, the 120–139 holders get rich by his standards of restraint.

Betting on the Words, Not the Deeds

Kalshi's mention markets let you trade on which words Donald Trump will say in a given week. This week's board prices "Kamala" at 59 cents, "Golf" at 61, and "TDS" at 55, with about $93,000 traded in the last 24 hours; the near-certainties, words like "Landslide" and "Sleepy Joe," sit pinned at 99 cents. A bucket only pays if he says the word in a public statement, in quotes carried by one of the major outlets Kalshi designates, or on his own social accounts. The underlying asset is what he can't stop himself from saying, which has historically been more liquid than policy.

Try Polymarket Yourself

🔥 Potential Alphas

Not financial advice. Just where the numbers look mispriced relative to the evidence.

The Paper Strait vs. the Real One

The Hormuz term structure may still be too optimistic at the long end. December 31 at 36.5% implies a decent chance traffic normalizes within four and a half months. The physical picture says otherwise: August is averaging 12 vessel transits a day, barely a tenth of the pre-war norm, and Tehran and Washington are still trading claims over who controls the passage.

🤔 The smarter tell is the weekly ship-count market. This week's contract prices under-25-ships at 53.5%, against pre-war weekly counts in the triple digits. If you're trading the December contract, the weekly counts are your early-warning system. If those don't crack triple digits by October, 36.5% for New Year's Eve looks rich.

⚠️ Read the resolution rules before touching any Hormuz contract. "Normal" is defined against a specific traffic baseline, and the fine print decides what counts, not the headline.

Bitcoin's $70,000 Wick

Bitcoin is trading around $65,000, up barely 1% on the week and down from above $93,000 in early January. Polymarket's August ladder prices a touch of $70,000 this month at 11.5%, down from 15.5% a week ago.

The setup cuts both ways, which is what makes it interesting. BTC needs a 7.7% rally in 13 days, and it hasn't closed above $65,000 once all month. But the contract pays on a single intraday wick, not a monthly close, and Wednesday's cool CPI is exactly the kind of print that sends risk assets on a one-day tear. At 11.5 cents, you're buying a coin flip's little brother.

The Bolsonaro Discount

Brazil votes October 4, and Polymarket has Flávio Bolsonaro at 32.8% to win the presidency, up from 27.3% last week, with Lula at 63.5%, unchanged on the week after briefly touching 67.5%. Jair Bolsonaro, the imprisoned former president who picked his son as the family standard-bearer, has faded to 0.35%.

Now compare that price to the runoff polls. If nobody clears 50% of valid votes on October 4, the top two advance to a runoff three weeks later, and the last three BTG/Nexus surveys put a Lula–Flávio runoff at 46–45 on August 3 and 47–44 on August 10 and again on August 17 — every one a technical tie. If the runoff is close to a coin flip, a 32.8% price on the son either discounts his chances of getting there, or it's telling you the polls are wrong about how close it is. With seven weeks to the first round, that gap is the trade.

👋 The Bottom Line

What to watch for next: Florida's results land tonight, and $7.7 million in primary contracts resolves with them; Donalds at 99% means the money's on a formality, but watch the Fishback volume if early returns wobble. The Hormuz August 31 contract expires in 13 days at 0.75%, and Tuesday's PortWatch update will tell us whether the weekly ship count can stay above 25. In Ukraine, the Kostyantynivka contract jumped from 74% to 98.75% this week on $576K traded, but it resolves off the Institute for the Study of War's map, and ISW says Russia has infiltrated the city without seizing it; a July contract on the city's railroad station already went from 93% to resolved-No on that same fine print. And circle September 15–16: the Fed decides, with one more CPI report due first.

Bye-bye,

O2

Trade smart, count the tankers yourself, and never leave money in a market that forgot to die.