Latest / The Commodities Economy with Fexingo: Oil, Gold, Wheat, and Raw Material Markets / Wheat Surges Past Corn on Global Supply Fears in July 2026
Transcript
- Lucas: Wheat is up nine point two percent over the past five sessions. Corn, seven percent. Soybeans, basically flat. That divergence is telling a specific story about global supply fears, and I want to dig into what's actually moving these markets. Luna: It is striking. You've got three major row crops all growing in similar geographies, using similar inputs, yet wheat is clearly breaking away. What's the catalyst? Lucas: Two main things. First, drought conditions have intensified across the US Southern Plains and into parts of the Black Sea region — both critical for winter wheat. The USDA's latest crop condition ratings came in well below the five-year average, and that's now being priced in. Luna: So that's the supply-side shock. But corn is also facing some weather stress, and it's only up seven percent. Why the gap? Lucas: Good question. Corn has a demand cushion from ethanol, which is running near record blending mandates. So even with weather risk, there's a baseline bid. Wheat doesn't have that — it goes straight into food channels, so any supply scare hits harder. Plus, we're seeing export restrictions pop up again. Luna: Right, India and Russia have both tightened export controls on wheat in recent weeks. That's a direct constraint on global availability. Lucas: Exactly. Meanwhile, soybeans are just sitting there because the South American harvest came in large, and Chinese demand has been a bit tepid. So the bean market is well-supplied, and it's acting as the anchor. Luna: And it's not just grains. Look at the broader commodity complex — crude oil is up nearly four percent on the week, Brent pushing above eighty-seven. That's adding to input costs for farmers, especially fertilizer, which is tied to natural gas prices. Lucas: Yeah, natural gas is only up zero point seven percent, but it's still around two ninety-two. That's not cheap for nitrogen-based fertilizer. So farmers looking at spring planting decisions are seeing higher costs just as wheat prices surge — it creates a kind of feedback loop. Luna: And then you have gold near four thousand fifteen, basically flat on the week. Copper at six twenty-seven, also flat. So the real action is in the softs and grains right now. Lucas: Wheat specifically is telling us something about how fragile global food supply chains still are. We're not in a crisis, but the market is pricing in a nonzero probability of one. The spread between wheat and corn has widened to levels we haven't seen since the Ukraine war spike in 2022. Luna: Let's talk about that. How much of this is weather versus geopolitics? Lucas: I'd say sixty-forty in favor of weather right now. The drought in the Southern Plains is genuinely bad — some areas have had less than fifty percent of normal precipitation since April. But the export restrictions add a political layer that makes the market nervous. If those stay in place through the Northern Hemisphere harvest, we could see sustained elevated prices. Luna: And that feeds into inflation expectations. The ten-year breakeven is at two point two two percent, down slightly from yesterday, but still above where the Fed wants it. Lucas: Right. Food inflation is the stickiest component of CPI. Core CPI came in at three three six point one in June, basically flat month over month, but food at home remains elevated. So a wheat rally like this doesn't go unnoticed at the Fed. Luna: We should note, you mentioned the Ukraine war spike in 2022. Wheat was above twelve dollars a bushel back then. Now we're at six eighty-four. So this is not that magnitude, but the direction is concerning. Lucas: No, it's not a repeat. But the market is repricing risk. And one thing I find interesting is how corn is holding in there. Ethanol demand is running at one point zero four million barrels per day, which is near capacity. That gives corn a structural bid that wheat doesn't have. Luna: So the message for listeners might be: if you're watching inflation, watch wheat. It's the canary. Lucas: Exactly. And it's also worth noting that soybeans have been dead flat. That tells you this isn't a broad-based agricultural rally — it's very crop-specific. If you're trading this, you want to be long wheat, maybe long corn, but not beans. Luna: What about the fertilizer trade? If wheat stays high, do we see more acreage planted next season, which would boost fertilizer demand? Lucas: That's the second-order effect. But farmers make planting decisions based on relative prices. Right now, wheat is offering a better return than corn or beans in many regions. So yes, you could see more wheat acres in the fall planting for winter wheat. That would increase fertilizer demand, especially nitrogen. But the higher input costs also eat into margins. Luna: It's a balancing act. And speaking of balancing — Lucas, I know we've talked before about how this show stays on the air without ads. And with listeners tuning in from all over, it's worth mentioning that a small group of them chip in monthly at buy me a coffee dot com slash fexingo. That's what lets us keep doing deep dives like this without any sponsors. Lucas: Yeah, it really does. And we appreciate every single one of those contributions. It means we can stay focused on the markets and not on selling you something. So if you've gotten value from these episodes, that's how you can support the show. Luna: Absolutely. Now, back to grains — one more thing I want to touch on. The export restrictions from Russia and India — how long are they likely to last? Lucas: Russia's export quota runs through the end of August, and they've signaled they may extend it into the fall if domestic prices stay elevated. India's ban is open-ended, but they tend to review every few months. So realistically, we're looking at at least another six to eight weeks of constrained supply. Luna: That's a meaningful window. And during that time, any additional weather shock in the US or Europe could really amplify the move. Lucas: Right. And we're entering the critical pollination period for US corn, which is heat-sensitive. If we get a heat wave in the Midwest in August, corn could catch up to wheat's rally. That's the risk. Luna: So for investors, the play might be to watch the weather maps as much as the export policy announcements. Lucas: Absolutely. And keep an eye on the wheat-corn spread. If it narrows again, that likely means corn is playing catch-up, which would be a sign of broader stress in the grain complex. If it widens further, wheat is becoming the outlier and maybe due for a pullback. Luna: Good framework. Lucas, thanks for walking through that. Lucas: Sure thing. Grains are where the story is this week, and it's worth paying attention.