Wall Street is betting Trump backs down on Iran but what if the TACO trade fails this time?

Billy Odell Tucker-Robinson Founder & Host — Banking With Billy Network • Intelligence Network • Data Science • AI Research • World News
Published: 2026-09-17T22:01:04.218Z • Permanent link

Investors, analysts, and traders around the world are accustomed to the peculiar playbook of Donald Trump's approach to Iran. For six months, a specific narrative has dominated the market: whenever Trump threatens Iran, Wall Street goes into buying mode, anticipating that he will eventually back down. This pattern, dubbed the "TACO trade" by traders, has been a reliable indicator of market sentiment, with investors betting on a Trump-induced sell-off in the days leading up to any potential conflict. However, the playbook stopped working in September, when the US president announced a new round of sanctions targeting Iranian oil exports.

Key figures in the Trump administration, including National Security Adviser John Bolton and Secretary of State Mike Pompeo, have been pushing for a tougher approach to Iran, which has led to increased tensions between the two nations. Meanwhile, US allies such as Saudi Arabia and the United Arab Emirates have been quietly building up their own military capabilities in the region, fueling concerns about the potential for an escalation. On September 9, US Secretary of State Mike Pompeo issued a statement warning Iran against further aggression, which was seen as a significant escalation of tensions. The same day, the US Treasury Department imposed new sanctions on several Iranian entities, including the Islamic Revolutionary Guard Corps.

Data from major stock exchanges and market research firms suggests that investors are increasingly wary of the potential for conflict, with stocks in major oil producers such as Saudi Aramco and Total rising as investors bet on a US-Iran conflict. However, the TACO trade has failed to materialize, and the market is now grappling with the implications of a Trump-induced sell-off that may not materialize. As one analyst noted, "The TACO trade has been a reliable indicator of market sentiment, but the playbook has stopped working, and we're seeing investors become increasingly cautious.

The implications of a failed TACO trade are significant for the Data Sources domain, which relies heavily on reliable market indicators and data points. Companies such as Bloomberg and Reuters, which provide critical market data and analysis, are now facing increased scrutiny from investors and analysts who are questioning the accuracy of their models. Research communities and academic institutions are also being impacted, as the failure of the TACO trade raises questions about the reliability of predictive models and the ability of data scientists to anticipate market movements.

For example, the failure of the TACO trade has significant implications for companies such as FactSet and Refinitiv, which provide critical market data and analysis to investors and traders. The failure of the TACO trade also raises questions about the role of artificial intelligence and machine learning in predicting market movements, as the same models that failed to anticipate the failure of the TACO trade are now being hailed as successes. The market is now grappling with the implications of a sell-off that may not materialize, and the Data Sources domain is being forced to re-examine its assumptions about the reliability of market indicators.

The failure of the TACO trade is part of a larger pattern of increased tensions between the US and Iran, which has been building over the past year. The Trump administration's decision to withdraw from the Iran nuclear deal in May 2018, combined with the introduction of new sanctions and a more aggressive approach to Iran, has led to a significant escalation of tensions in the region. This is not the first time that the US has threatened Iran, however, and the pattern of increased tensions and decreased market confidence is all too familiar.