Trump renames Strait of Hormuz to "Strait of Trump" by May 31?

Platform comparison

Market context

A formal US renaming of the Strait of Hormuz to “Strait of Trump” would require a very visible public announcement, and the current 1% crowd price implies traders see that as highly unlikely before the May 31 deadline. The closest precedents are Trump’s other high-profile naming gestures and symbolic foreign-policy branding, which have tended to be rhetorical rather than legally binding cartographic changes. On Polymarket, the price is shown as an implied probability; on Kalshi, the same view would usually be expressed as a dollar price for a yes contract, while Betfair and Smarkets quote odds with commission layered in differently. That means the same market can look slightly different across books even when the underlying view is the same.

For context, the Strait of Hormuz is one of the world’s most sensitive shipping chokepoints, so any official US attempt to relabel it would attract immediate diplomatic attention from Iran and Gulf states. Recent reporting has already pointed to a niche market on the same theme, with Binance Square noting a Polymarket contract on whether Trump would rename the strait and reporting a sharp drop in yes odds to around 6% on 20 May. Traders should watch for Trump’s public remarks, any White House or campaign-style statements, and whether the topic appears in press briefings, rallies, or social media posts before month-end. The settlement language is strict: only a public announcement that the US will officially use a Trump-branded name should count, so casual comments, jokes, or third-party reporting would not be enough on their own.

Sources: 1 · 2 · 3

Methodology

This page compares Trump renames Strait of Hormuz to "Strait of Trump" by May 31? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.