A normal futures contract is a bet on where an asset will be on a specific date, with an expiration day and a settlement when that day arrives. Perpetual futures, known as perps, skip that part entirely.
A perp has no expiration date, tracking the price of an asset continuously while a funding payment keeps the contract price lined up with the market. The trader gets exposure to the asset without owning it, which is why perps feel more like following a market's direction than owning a piece of it.
Where have perps been hiding? Until recently, they were only traded offshore, outside U.S. regulatory reach, and Kalshi is trying to bring them home.
Kalshi filed a request with the Commodity Futures Trading Commission on August 18, 2026 to offer perps tied to equity indexes. The proposed contract, called "US500," would track the MerQube U.S. Large Cap Index, which is made up of the 500 biggest U.S.-domiciled and listed firms.
This is not Kalshi's first move. It won approval for crypto perps in late May, filed for gold and silver perps in July, and in its filings on Tuesday it also sought approval for copper.
Perps might be new to U.S. investors, but the product is not small. Kalshi says global perp volume surpassed $90 trillion in 2025.
Its own crypto perps hit $1 billion in notional volume within a week of launch. Notional volume is the total value of the contracts traded, and it is the standard way perp markets are measured.
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Kalshi is betting that plenty of investors want that kind of flexibility without having to go through an offshore platform.
CME and CBOE, the exchange operators, saw their shares drop in early June after Kalshi won approval for crypto perps. CME went further and sued the CFTC over the approval.
On Tuesday, the reaction was calmer. CME shares rose 2% and CBOE rose 0.2%.
Kalshi engineer Lior Hirschfeld laid out the ambition during a presentation. "This is the next step towards building the largest exchange on the planet."
The company describes its goal as becoming a fully-fledged multi-asset exchange, meaning it wants to trade everything, not just crypto and stock indexes. The filings for gold, silver, and copper make that direction clear.
You might never touch a perp, and that is completely fine. The reason to care is competition, because competition in financial markets usually ends with better prices for the people doing the trading.
When a challenger like Kalshi keeps expanding, the big exchanges have to respond, either by cutting fees, improving their own products, or both. For investors, that pressure often shows up in what it costs to place a trade.
There is a bigger shift hiding in here too, and it is about access. Perps used to be an offshore product, out of reach of U.S. regulators and most U.S. investors.
Now they are arriving in pieces: crypto first, then gold and silver, then copper and stock indexes. The more products that come onshore, the more access individual investors get.
The honest caveat is that perps are not a simple product. The funding payments that keep them in line with the market can cut in your favor or against you.
With no expiration date, a position can stay open as long as you keep it. Risk and opportunity are both in the package.
For your portfolio, the near-term effect is probably small, but the long-term direction is harder to argue with. A new exchange is pushing to bring the world's biggest trading products onto U.S. soil.
The old guard is already pushing back, and when those two forces meet, investors usually find something in it for them.