The US trade representative told Mexican companies that Trump tariffs are permanent, a development likely to affect the Polymarket contract on EU retaliatory tariffs on US goods by September 30, which has seen no trades in the last 24 hours.

Market reaction

The EU retaliatory tariffs market has been inactive over the past 24 hours, but the confirmation of permanent US tariffs on Mexico changes the calculus. Permanent tariffs signal continued hawkish trade policy, which raises the probability of EU retaliation. Any news of an EU response could trigger rapid price movement given the current lack of trading activity.

Why it matters

The trade representative’s statement reinforces the US’s aggressive posture within the USMCA framework, with a specific focus on stricter rules of origin to curb Chinese transshipment through Mexico. Declaring these tariffs permanent suggests de-escalation is unlikely before the mandatory 2026 USMCA review. If the EU reads this as a hardening US position across all trade relationships, retaliatory measures become more probable.

What to watch

The two signals that matter most: official announcements from the EU Commission on retaliatory tariff plans, and further statements from US trade officials on broader trade policy. Either could move this market quickly given its current inactivity. At current odds, a YES share would pay out substantially if the EU proceeds with tariffs before the September 30 deadline.

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