A Startup Is Selling Onion Futures. The Ban Still Stands.

Onions are the only product in America you cannot legally trade futures on. Not oil, not pork bellies, not lumber. Onions. The ban has been on the books since August 28, 1958.

On Friday a company selling onion futures hit the Hacker News front page with 367 points.

The San Francisco Onion Futures Company sells private, transferable contracts for the future physical delivery of yellow onions. Delivery months run October 2026 through March 2027, prices run three to twelve dollars per onion, recalculated nightly, and you pay with Stripe. In the first week of your delivery month somebody contacts you to arrange collection of actual onions in San Francisco, Toronto, Seattle or Chicago.

Most comment threads treated it as a joke about a silly old law. That misses the useful part. Its public FAQ is cleaner regulatory reasoning than what I see in most seed decks, and the structure is worth stealing.

Short version: two traders broke the onion market so badly that Congress carved onions out of the commodities system and never put them back.

In the fall of 1955, Sam Siegel and Vincent Kosuga bought enough onions and onion futures to control roughly 99.3 percent of the available onions in Chicago, about 30 million pounds in storage. Then they threatened growers with dumping the lot unless the growers bought inventory back. The growers bought. Siegel and Kosuga promised to hold the rest to support the price, then sold anyway.

By March 1956 a 50-pound bag of onions in Chicago went for about 10 cents, less than the sack it came in.

Congress responded with the Onion Futures Act of 1958, sponsored by a young Michigan representative named Gerald Ford and codified at 7 U.S.C. § 13-1.

Alt text: A single yellow onion presented as a traded commodity Caption: Onions are the only agricultural commodity the United States bars from futures trading.

The statute is narrower than "onion futures are illegal." It prohibits contracts for the sale of onions for future delivery made "on or subject to the rules of any board of trade in the United States," and a board of trade is defined as an organized exchange or other trading facility.

The company's position, on its own FAQ: it is not a board of trade. It sells contracts privately, to individual buyers, one at a time, with no exchange and no secondary market.

What follows from that claim is the interesting part. No cash settlement. No refunds. No order book, no bids, no asks. Resale happens by handing another person your contract key, with the company acting only as registrar. Every one of those choices costs money and makes the product worse for a speculator. Each also removes a feature that would make "we are not an exchange" harder to defend.

That is a regulatory position when it is load-bearing. Not a paragraph at the end of the deck. It shapes the product.

Sometimes. The test is whether the gap you found is a durable feature of how the rule was written, or an accident nobody has closed yet. Three questions separate the two.

Does the rule's purpose reach you? The 1958 statute exists because exchange-traded onion contracts let two men crush a national crop price. A company selling a few thousand physical onions to hobbyists does not threaten the onion supply. When the mischief a law targets is absent, enforcement interest is usually low. When you are doing the exact thing the law was passed to stop through a different door, you are on a timer.

Who has standing to complain? Regulators act on complaints far more often than on their own initiative. Ask who loses money when you succeed. If the answer is an incumbent with a government affairs team, assume they will write the complaint and make it easy to sign.

What happens to your customers if you are wrong? A shut-down that inconveniences you is survivable. One that strands customer funds or exposes them personally produces lawsuits rather than cease-and-desist letters.

They stay vague on purpose.

I have sat in rooms where a founder was asked "is this legal?" and answered with a shrug and "nobody's really enforced it." That is fine in a bar and disqualifying in diligence. It signals nobody has done the work, which means the risk is unbounded, which means an investor prices the company as if the worst reading is correct.

The alternative takes an afternoon. Write down the exact rule with its operative sentence quoted, the clause your business sits outside of, the product decisions that keep you there, the events that would change the answer, and who you asked.

A memo does not protect you. It forces you to find out whether your position survives contact with the actual text, and most of the time you discover in paragraph two that it does not.

Build a small decision file before you build the product, and treat it as part of your plan rather than a separate legal chore.

Start with the rule itself. Statutes are shorter than founders expect; 7 U.S.C. § 13-1 is a few sentences. Read the primary text before anyone's summary.

Then map the enforcement path. Which agency, which remedy, how long it takes, what it has done to similar companies. Regulators leave public records; the CFTC's case files from the Kosuga matter are online sixty-six years later.

Then write your worst case as a number. Not "we could be shut down." Something like: injunction within 18 months, 40,000 dollars in legal fees, refunds of outstanding contracts, no personal exposure.

Most first-time founders keep this reasoning in their head and rebuild it every time an investor asks. Keeping the regulatory assumptions next to the business model works in a shared doc, a Notion page, or a planning tool like Foundra that gives first-time founders a structured spot for each piece. Writing them down and dating them matters more than the tool.

A gray area is a moat when what keeps competitors out is difficulty rather than illegality: a licensing regime you completed, a regulator relationship you built, an operational burden most companies will not carry. Those compound.

It is a countdown when your entire advantage is that nobody has noticed yet. Those decay, and the cost of the eventual correction grows with your customer count.

The tell is scale. Does growth make your legal position stronger or weaker? Stronger means moat. Weaker means runway, and you should be building the thing you will pivot to.

For the onion company, scale is the enemy. A private contract business with a few hundred buyers looks nothing like a board of trade. The same business with a hundred thousand buyers actively flipping keys starts to look like the trading facility the statute describes, whatever the company calls it.

If your company touches a regulated area at all, spend an hour this week on four things.

Name your rule, with the actual text. Name your carve-out in one sentence a non-lawyer would understand. List the product decisions that keep you inside it, and mark which ones your team would be tempted to reverse for growth. Those are your tripwires, and they belong somewhere a new hire will see them, because the person who breaks your regulatory position is almost always an enthusiastic employee optimizing a metric.

Then set a review date. A position you wrote in March and never revisited is not a position, it is a souvenir.

One more thing worth copying: the onion company put its reasoning where customers can read it. An argument that only works when nobody looks closely is not an argument. It is a hope.

• Onions remain the only agricultural commodity barred from US futures trading, under a 1958 law passed after two traders cornered and then crashed the market.
• The San Francisco Onion Futures Company's claim is narrow: the statute bans onion futures traded on a board of trade, and it argues it is not one.
• That claim is credible mainly because the product was built around it. No cash settlement, no refunds, no secondary market, physical delivery only.
• A regulatory position that does not change your product is not a position.
• Ask whether growth strengthens or weakens your legal footing. That question separates a moat from a countdown.

Is it legal to sell private onion futures contracts?

The company argues yes, on the grounds that 7 U.S.C. § 13-1 bans onion futures traded on or subject to the rules of a board of trade, and that a private seller of individual contracts is not one. No court or regulator appears to have tested that reading. Treat it as an unresolved argument and talk to a commodities lawyer before copying it.

Should my startup build in a regulatory gray area?

Only if you can state your legal position in one sentence, point to the text it rests on, and name the product decisions that keep you inside it. If you cannot do all three, you are not operating in a gray area. You are guessing.

Will investors fund a company with an unresolved legal question?

Many will, if the question is bounded and you have done the work. What kills a round is not risk, it is unquantified risk. A memo saying "here is the rule, here is our reading, here is the cost if we are wrong" is fundable. A shrug is not.

What is the cheapest way to get a real legal read?

A scoped memo from a lawyer in that practice area, usually a few thousand dollars. Bring the position you drafted yourself and pay for an hour of review instead of five of discovery.

1. San Francisco Onion Futures Company (company site and FAQ)
2. San Francisco Onion Futures Company, Hacker News discussion, September 19, 2026
3. Onion Futures Act (7 U.S.C. § 13-1), background and history
4. Vincent Kosuga and the 1955 onion corner
5. In the Matter of Vincent W. Kosuga, Sam S. Siegel, and National Produce Distributors, CFTC case documents (June 1960)
6. Hacker News Digest, September 19, 2026