U.S. tariffs on Canada, Mexico, and China are fueling uncertainty and shaking commodity markets
The grain and oilseed sector faces renewed pressure as speculative money exits the market
Traders are bracing for more volatility as the tariff landscape remains fluid
The commodity markets are once again at the mercy of shifting trade policies, with U.S. tariffs creating fresh waves of volatility in the grain and oilseed sector. That troubling scenario was detailed in StoneX Chief Commodities Economist Arlan Suderman’s most recent commentary. Suderman’s analysis highlights how uncertainty around tariffs is driving risk-off sentiment across agricultural markets.
Tariff Uncertainty Sparks Volatility in Grain and Oilseed Markets
Suderman pulled no punches, calling it yet “another ugly day in the grain and oilseed markets” and pointing to the erratic back-and-forth on tariffs that has left traders scrambling. When President Trump’s initial salvo - implementing a 25% tariff on Canadian and Mexican imports on February 1 - was placed on hold, traders and hedgers hoped for a reprieve. That hope was short-lived, though, as the President affirmed his intention for the tariffs to take effect on March 4, seemingly contradicting earlier White House guidance that no decisions would be made until April. Adding to the unease is an additional 10% tariff on Chinese imports, still on the table.
The unpredictability has stoked market anxiety, Suderman emphasized, noting that “the sense was that these tariffs wouldn’t go through.” With Trump’s latest comments and the still-slated additional 10% tariff on Chinese imports, Suderman expected to see “liquidation” heading into the first weekend of March. As funds that had piled into corn and soybeans begin unwinding their positions, Suderman cautioned his listeners to expect a reversal of a longed-for recovery driven by inflation expectations and the Federal Reserve’s rate cuts.
Grain and oilseed market participants may have anticipated a resurgence in light of the short-covering rally in April and May 2024, which followed the market shedding 20.5% of its value in 2023 and another 14.5% into 2024. But that optimism has now been severely dampened, if not completely snuffed out, by tariff uncertainty and abrupt policy shifts. The resulting move to risk aversion has seen traders opting to pull back rather than bet on stability.
How Algorithmic Trading and Risk Aversion Are Driving Market Declines
Suderman called particular attention to the technical breakdown triggered by the “piling-on effect” from algorithmic trading systems as support levels in corn, soybeans, and wheat broke down, compounding market pressures. He identified March 4, when the U.S. tariffs on Canada and Mexico could officially take effect, as the next key date to watch, with traders growing increasingly wary of further changes before April 2, when Trump's task force on tariffs is set to report back.
For now, the market remains in defensive mode, awaiting clarity as volatility persists. In Suderman’s view, while “headlines could change at any moment” traders will likely continue to play it safe, follow the trend, and reduce exposure until tariff policy stabilizes.
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