Latest / The Commodities Economy with Fexingo: Oil, Gold, Wheat, and Raw Material Markets / Why Corn Is the New Oil in Commodity Markets
Transcript
- Lucas: So corn is up nearly ten percent in the last five trading days. That's not just a weather bump—that's a signal. Luna: Ten percent in five days? That's huge for a grain. What's driving that? Lucas: A few things converging. You've got heat stress across the U.S. Midwest during the critical pollination window, export demand that's been steady, and ethanol blending mandates that keep a floor under prices. But the bigger story is how corn is starting to behave less like a grain and more like a macro asset. Luna: What do you mean by macro asset? Lucas: Look, corn futures have become a proxy for inflation expectations and energy policy. When oil rallies even modestly, corn gets a bid because of ethanol. And right now, with crude up six percent in the same window, that link is pulling corn along for the ride. But it's also a supply story—the USDA's crop condition ratings have slipped in the past couple of weeks. Luna: So it's both a weather and a policy story. But oil's only up six percent while corn's up nearly ten. That gap is interesting. Lucas: Exactly. Oil's move is more about short-covering and a softer dollar. The OPEC+ production increase is still hanging over the market, and Iran tensions have cooled. So crude is grinding higher but not breaking out. Corn, on the other hand, has a genuine supply shock brewing in the fields. Luna: I read that corn is the new oil in some trading circles. Is there something to that? Lucas: There's a kernel of truth. Ethanol accounts for roughly a third of U.S. corn demand, so energy prices directly influence grain prices. And with electric vehicles not exactly dominating farm country yet, that link stays intact. But calling corn the new oil overstates it—corn is still a weather-driven, perishable crop with a harvest cycle. Luna: Alright, but what does this mean for the average consumer? We're not just talking futures contracts. Lucas: Corn is in everything—from breakfast cereal to beef. Higher corn costs ripple into food prices, which is exactly what the Fed is watching. The July CPI came in at three hundred thirty-two point eight, up slightly from the prior month. Core CPI ticked up too. So even as headline inflation cools, these commodity moves keep the pressure on. Luna: And yet the ten-year breakeven inflation rate actually fell to two point two seven percent. That seems counterintuitive. Lucas: That's the disconnect. Markets are saying long-term inflation expectations are anchored, but short-term commodity spikes are real. Corn is one of those crosscurrents. The breakeven rate is about the next decade, not the next harvest. So you can have a hot corn market and still have cool inflation expectations. Luna: Okay, so corn is the outlier. But let's talk about the other big mover—gold. It's up another three percent this week, sitting near four thousand four hundred dollars an ounce. Lucas: Gold keeps grinding higher, and it's not just about inflation. This week's tame CPI report is actually supporting gold because it keeps the Fed on a path to rate cuts. Lower real rates make non-yielding gold more attractive. Plus, central bank buying continues to provide a structural bid. Luna: So gold is thriving in a cooling inflation environment? That's a bit counterintuitive too. Lucas: It seems counterintuitive, but gold has become more of a geopolitical and financial stability hedge than a pure inflation hedge. The budget deficit surged in July to its highest level since March 2021—that's a headline. And investors tend to buy gold when fiscal trajectories look shaky. Luna: Right, and silver is up even more this week, over three percent. But copper is barely moving. Lucas: Silver is catching gold's bid with more volatility. Copper, on the other hand, is only up half a percent. That's a telling divergence. Copper is the industrial bellwether—if the economy were truly booming, copper would be leading. Instead, it's stalling, suggesting the global manufacturing slowdown is still real. Luna: So gold and silver are saying one thing, copper is saying another. What's the market actually telling us? Lucas: That we're in a cooling economy with pockets of hot inflation. The PCE price index actually fell in June, but core PCE ticked up. That's the kind of mixed signal that keeps everyone guessing. Commodities are reacting individually to their own supply-demand dynamics, not just one macro story. Luna: And natural gas? It's up five percent this week, quietly outperforming oil again. That's the second time in a month. Lucas: Natural gas is a different beast. This week's move is about heat—literally. Record temperatures across the South are driving air conditioning demand, and storage injections have been below average. Plus, there's the ongoing shift to gas for power generation as coal retires. That's a structural demand story. Luna: So it's not just a summer spike. Lucas: No, it's a trend. And it's one we covered a few episodes back. But the interesting thing is that natural gas is up five percent while oil is up six percent—they're moving together this time. That hasn't always been the case in 2026. Luna: Let's step back. You've been doing this show for a while now, and I know we get a lot of questions from listeners about how we keep it going without ads. It's something we've touched on, but maybe it's worth being transparent. Lucas: Yeah, let's be honest for a second. We don't run ads. The show is funded by a small group of listeners who chip in monthly through buy me a coffee dot com slash fexingo. That's literally it. It keeps the show independent and lets us dig into these topics without worrying about sponsor pressure. Luna: And we're genuinely grateful to everyone who does that. It's not a big ask, but it makes a huge difference. If you find yourself nodding along to these conversations, that support is what keeps the lights on. Lucas: Exactly. And it's not about perks or shout-outs—it's just about keeping this show ad-free and honest. So thanks for considering it. Luna: Alright, back to the markets. You mentioned the budget deficit. How much does that play into the gold narrative versus, say, the corn rally? Lucas: The deficit is a slow-burn driver for gold, not a day-to-day catalyst. But when you see a headline like 'deficit surged to highest level since March 2021,' it reinforces the idea that fiscal policy is loose. That's supportive for gold over the medium term. Corn, on the other hand, is much more immediate—it's about the next few weeks of weather. Luna: So one is a ticking clock and the other is a sprint. Lucas: That's a good way to put it. And speaking of sprints, coffee is having a bad week—down five and a half percent. After the big rally earlier this summer, this pullback is worth watching. Luna: What's behind the drop? Is it just profit-taking? Lucas: Partly. But there are also reports of better than expected rains in Brazil, which eases supply concerns. The market had priced in a lot of dryness, and now it's correcting. That's a classic commodity move—when the weather forecast improves, prices fall fast. Luna: So we've got a mixed bag: corn ripping higher, coffee crashing, gold and silver climbing, copper flat. What's the through-line for our listeners? Lucas: The through-line is that commodity markets are decoupling from each other. For years, everything moved with the dollar and global growth. Now, each commodity has its own story—weather, policy, geopolitics, fiscal fears. That makes it harder to use one index as a barometer, but it also creates opportunities for those who look at the specifics. Luna: And for the average investor, what's the takeaway? Lucas: Don't treat commodities as a monolith. Corn's rally isn't a reason to buy oil, and gold's strength isn't a reason to buy copper. You've got to dig into the fundamentals of each market. That's what we try to do here. Luna: And that's why we dig deep. Alright, Lucas, any final thought on where we go from here? Lucas: Keep an eye on the USDA crop report next week. If corn conditions drop further, we could see another leg up. And watch the Jackson Hole symposium later this month—any hints on rate cuts could send gold even higher. These are the moments where commodity moves tell you more than any single headline. Luna: Well said. That's all the time we have today. Thanks for joining us, and we'll catch you in the next episode.