Is KOLD a Good Investment? The Case For and Against (2026)

KOLD is a leveraged inverse ETF that seeks daily results, before fees, of negative 2x the daily performance of the Bloomberg Natural Gas Subindex, which references Henry Hub natural gas futures. It is built to gain when natural gas prices fall and lose when they rise, at about twice the daily magnitude. Its net expense ratio is about 0.95%. Daily leverage resets, extreme natural gas volatility, and futures roll costs cause KOLD to compound and decay over time.

Largest holdings (approximate as of mid-2026; verify on ProShares's fund page):

KOLD is the ProShares UltraShort Bloomberg Natural Gas fund, a leveraged inverse ETF that seeks 2x the opposite (negative 200%) of the daily return of the Bloomberg Natural Gas Subindex, which tracks Henry Hub natural gas futures. KOLD is designed to rise when natural gas falls and fall when it rises, at roughly double the daily magnitude. Its net expense ratio is about 0.95%. Because natural gas is highly volatile and leverage resets daily, KOLD compounds and decays over time, making it a short-term trading tool. Its long twin is BOIL.

In its favour: it gives you Bloomberg Natural Gas Subindex (negative 2x daily) exposure in one ticker at a ~0.95% expense ratio, which is simple to hold and cheap to own.

• Cost vs alternatives: ~0.95% is the fee; compare it to funds tracking a similar index.
• Concentration: check how much of KOLD sits in its largest holdings (NG, USD).
• Overlap: if you already own a broad-market fund, you may already hold much of this.
• Tracking scope: KOLD only gives you Bloomberg Natural Gas Subindex (negative 2x daily); it will not capture what sits outside that index.

“Diversified” is the word every index fund uses and it hides a wide range. The number that actually matters is how much of the fund sits in its largest positions, because that is the part that drives the return. Published weights for KOLD are not detailed enough here to total reliably, so check the largest positions on ProShares's fund page before assuming the spread is even.

Where a fund does not make its concentration easy to see, treat that as a reason to look rather than a reason to assume.

This is also the number that decides whether KOLD adds diversification to your portfolio rather than to a portfolio in the abstract. A fund can be well spread on its own and still concentrate you further, if its largest holdings are names you already own directly or through another fund. That is a question about your account rather than about KOLD, and it is the one worth answering before you buy.

A fund is defined as much by what it leaves out as by what it holds, and the exclusions are rarely on the marketing page. KOLD tracks Bloomberg Natural Gas Subindex (negative 2x daily), so anything outside that index is simply absent from your portfolio no matter how much of the fund you own.

In practice that means checking three gaps. Whether the geography you want is covered, since a US index holds no international companies and a developed-markets index holds no emerging ones. Whether the size band you want is covered, because a large-cap index excludes the smaller companies some investors specifically want exposure to. And whether the asset class you want is covered at all, since an equity fund holds no bonds and gives you nothing to rebalance against in a drawdown.

None of these are faults. They are the fund doing exactly what it says. The mistake is assuming that owning a diversified fund means being diversified, when it means being diversified within one index.

Being specific about this is more useful than another paragraph on why it might be right.

• You already own most of it. If a broad-market fund you hold already contains NG, USD at meaningful weight, adding KOLD mostly increases your exposure to the same companies while adding a second fee. That is the single most common way people accidentally concentrate.
• You want the exposure for a short horizon. An index fund is a way to own an asset class over years. Over months it is simply the index, with all of the index's volatility and none of the compounding that makes holding it worthwhile.
• You need income you can rely on. Distributions from an equity index fund vary with what the underlying companies pay, so they are not a schedule you can plan around the way a bond ladder is.
• A cheaper fund tracks the same thing. Where two funds follow a similar index, the difference in expense ratio is one of the few advantages available to you without taking extra risk. Compare before assuming ~0.95% is competitive.

The useful question is rarely “will KOLD go up?” It is “does this exposure fit my plan, at a cost I am happy with, without doubling up on what I already own?” Walnut connects your real brokerage so you can see exactly how KOLD would overlap with your current holdings, analyze it by chatting through Claude or ChatGPT, and place any trade yourself. You stay in control.

The bottom line: KOLD is a low-cost core building block for Bloomberg Natural Gas Subindex (negative 2x daily) exposure, not a tactical bet on a single name. If you want Bloomberg Natural Gas Subindex (negative 2x daily) exposure and the ~0.95% fee is competitive for you, it does its job well. If you already own that exposure through another fund, adding it mostly doubles a fee without adding diversification. Decide from your goal and your existing holdings, not from where the market sat last week. Walnut is not an investment adviser.

• What is KOLD? (holdings, cost, performance, and the themes it covers)
• KOLD dividend: yield and schedule