From tariffs to the Iran conflict: what are the limits of TACO trade?

Throughout 2025, an informal rule took hold on Wall Street: when the White House escalated tensions, markets fell; when pressure reached a breaking point, policy eased, triggering rebounds. The Iran conflict in 2026 has tested that logic, forcing investors to reassess whether the “TACO trade” pattern still holds.

What “TACO trade” means

In investing, “TACO” refers to the idea that President Trump often takes a hard line but then backs off, not acting as decisively as statements suggest. The term—short for “Trump Always Chickens Out”—started as a joke in the investment community, but evolved into a trading pattern based on the assumption that tough policy decisions usually stop before causing significant economic damage.

The mechanism is straightforward: markets react negatively to escalating threats—especially in risk assets such as equities—while policy adjustments typically follow once pressure spills into bonds and shifts inflation and growth expectations. Investors, the article notes, trade not on the event itself but on the expectation that it will not reach extremes.

TACO’s tariff-cycle pattern in 2025

In 2025, the tariff escalation sequence became “standardized” into a recognizable strategy. The article describes a repeating pattern with high consistency: tough statements lead to market deceleration, followed by time-bound pressure and then negotiation signals that point toward compromise.

Each escalation phase followed similar steps. Markets fell on negative information, volatility rose as tariffs loomed, and recoveries tended to occur when tensions cooled. Timing also mattered: tough statements often appeared on weekends or outside official trading hours, when liquidity is lower and market reactions can be amplified. Negotiation signals then followed, setting up rebounds when markets reopened.

The strategy benefited from a framework in which the US could adjust policy quickly and limit economic damage, allowing risk to reverse. The article says this produced stable profits throughout 2025, but also created conditions for larger risks later.

Policy “tolerance limits” and market signals

At the core of the TACO concept is the idea of a policy “tolerance limit”—a point beyond which the economic costs become too high to continue escalation. Financial markets act as an early-warning system through asset prices.

The article highlights several key variables: oil prices, bond yields, and stock indices. It notes that when oil approaches $100 per barrel, inflationary pressure rises; when bond yields rise sharply, the cost of capital tightens; and when stocks fall sharply, consumer and business confidence weakens.

In this view, policy tends to adjust to avoid systemic shocks. The article also points to public statements linking stock market movements and gas prices—both described as sensitive indicators—to pressure for policy changes. However, it warns that not every shock can be fully reversed, and that lasting consequences can remain even after escalation stops.

How the 2026 Iran conflict changed the equation

The article says the Iran conflict in 2026 shattered TACO’s core assumption. Unlike tariffs, military conflict cannot be flexibly adjusted once started, and its consequences can spread across sectors and be difficult to unwind.

It describes a situation in which Iran is unlikely to comply easily with US wishes. While the article states that Trump signaled willingness to negotiate and halt fighting, it says Iran rejected such signals and continued launching missiles.

Energy chokepoint and market repricing

The Hormuz Strait—handling about 20% of global oil—is presented as a strategic chokepoint. The article says that in a short period, ship traffic fell, insurance costs surged, and energy prices rose. It cites a Goldman Sachs forecast that Brent crude could reach $110 per barrel in Q2 2026, with downside risk up to $135 if disruptions persist.

It also notes that Iran imposes a fee on commercial ships passing Hormuz, up to $2 million per voyage, payable in yuan. The article says this creates shipping-cost pressure and a parallel payment channel outside the USD system.

Ceasefire no longer means a return to the old baseline

In this context, the article argues that even if a ceasefire is reached, markets do not revert to their original state. Oil prices remain higher, supply chains stay disrupted, and geopolitical risk becomes a longer-term factor in pricing.

As a result, the article says TACO persists but changes form: policy can ease, but it cannot erase damage already done. It adds that the strategy’s effectiveness declines as more investors adopt it—making rebounds weaker and turning points harder to predict—shifting the market from opportunistic recovery to greater caution.

From reflex to analysis: the limits of the strategy

The article concludes that TACO is not a standalone trade so much as an interpretation of policy behavior through market reactions. It argues investors must distinguish between reversible shocks—such as tariffs, where policy stopping points can be traded—and accumulative risks like war, where expecting markets to return to their prior state can lead to errors.

It also notes that as a strategy becomes widely believed, its edge erodes. When fewer investors doubt the pattern, fewer opportunities remain. More broadly, the article emphasizes that markets price not only a single event but the ceiling at which that event can be contained; when that ceiling shifts, the trading logic must change.

In the article’s framing, TACO has not disappeared but entered a new phase—shifting from a reflexive expectation of reversal toward a tool for gauging how far policy can escalate without uncontrolled losses.

[Author: Đức Quyền]