There are quarters where the operating loss is only $49 million, but the net loss swells to $626 million.
This is the result of CoreWeave’s interest expense—specifically, its net interest expense—reaching $640 million in the second quarter of 2026, which accounts for about 25% of its $2.575 billion in revenue. It means that while the business operations themselves are near break-even, interest payments have determined the bottom line.
How much was CoreWeave’s interest expense in Q2, and what is net interest expense?
According to CoreWeave’s Q2 earnings press release, the net interest expense recorded was $640 million, compared to $267 million in the same quarter last year.
Dividing 640 by 267 gives a factor of about 2.40x (calculated). During the same period, revenue grew from $1.212 billion to $2.575 billion, an increase of about 112%; thus, interest costs grew faster than revenue. In terms of growth rates, interest rose by approximately 140%, while revenue grew by approximately 112% (640÷267-1, 2,575÷1,212-1).
Net interest expense is the value obtained by subtracting interest earned from deposits and other sources from the interest the company paid on its debt. It appears as a single line item on the income statement. I could not find separate figures for interest paid versus interest received in the press releases or quarterly reports. Therefore, all interest expense figures mentioned in this article are on a net basis.
Looking at the proportion makes it clearer. Dividing $640 million by $2.575 billion in revenue equals 24.9%, or approximately 25% (640÷2,575).
Let’s use a very simple assumption. If a store sells 100 won worth of goods but spends 25 won just on interest, a quarter of its revenue vanishes before it even pays for materials or labor. While CoreWeave’s actual cost structure is more complex, this analogy illustrates how heavy the interest burden is.
So, at what stage of profit does this interest get deducted? Let’s look at interest relative to operating profit.
How much is interest relative to operating profit, and how did the $626 million net loss occur?
To discuss interest relative to operating profit, the operating profit must be positive; however, CoreWeave’s Q2 operating profit was negative. There was an operating loss of $49 million (operating margin of -2%), compared to an operating profit of $19 million in the same quarter last year. Tracing the figures from the press release shows how interest affected the bottom line below this near-break-even operating profit:
Starting with an operating loss of $49 million, subtracting the $640 million in net interest expense, and adding $125 million in other income/expense results in a pre-tax loss of $564 million (-0.49-6.40+1.25, calculated). Adding $62 million in corporate taxes leads to the final net loss of $626 million. The same logic applies to the previous year’s quarter: $19 million operating profit minus $267 million net interest expense, plus $6 million in other items, minus $48 million in corporate taxes, equals a net loss of $290 million (calculated).
Let’s use a hypothetical scenario to gauge how decisive the interest was.
If we assume the Q2 net interest expense had been at the previous year’s level of $267 million, the pre-tax loss would have been $191 million (-0.49-2.67+1.25). The difference of $373 million from the actual $564 million represents the magnitude of the increased interest burden over the year (6.40-2.67). Since this is a simple hypothetical assuming the same other income and operating loss, it is not a projection of actual results. However, this calculation reveals that the biggest factor widening the loss this quarter was interest, not operations.
Other income of $125 million reduced the loss this quarter, but the press release table does not specify its composition. While this line item usually includes things like currency fluctuations or derivative valuations, I could not confirm what was significant this quarter. It is clear, however, that it was not an item that offset the interest itself.
Since the operating profit is negative, the ratio itself is meaningless, so I compared the interest against two other metrics the company provides.
First, adjusted operating profit is $128 million ($200 million last year). This is a figure that excludes certain costs according to the company’s criteria, so it differs from general operating profit. Comparing this to the $640 million interest gives a factor of 5.0x (640÷128). This means interest is five times the adjusted profit. Next is adjusted EBITDA of $1.51 billion (59% margin). EBITDA is profit before interest, taxes, and depreciation, reflecting the cash-generating power of capital-intensive businesses. The $640 million interest is 42% of this value (640÷1,510).
When you place the numbers side-by-side, the structure becomes visible.
While the power generated by operating the facilities is significant, because those facilities were purchased with borrowed money, interest consumes almost all profit after the operating stage. Personally, the most striking aspect is the divergence: adjusted operating profit decreased from last year, while interest became 2.4 times higher.
How much has CoreWeave’s net interest expense increased quarter by quarter?
To determine whether this spike in interest is an anomaly or a trend, we must look at the quarterly flow.
According to media reports (reprinted from The Motley Fool), the interest expenses for the last five quarters were $267 million, $311 million, $388 million, $536 million, and $640 million. From the previous quarter's $536 million to $640 million is an increase of about 19% (640÷536).
When you place the year-over-year growth rate and the proportion to revenue together, the direction becomes clear.
Looking only at Q2, the interest proportion rose from 22.0% to 24.9% (267÷1,212, 640÷2,575). On a cumulative basis for the first half, net interest expense increased from $531 million to $1.176 billion, while revenue grew from $2.194 billion to $4.653 billion, pushing the ratio from 24.2% to 25.3%. Even as revenue is doubling, the interest burden is not decreasing.
The reason lies in the sequence.
CoreWeave buys chips and data centers first, and it takes a long time for those facilities to translate into revenue.
Q2 facility purchases were $6.422 billion, well over double the revenue. In a structure where expenditures go out first, debt balances grow faster than revenue, and interest follows the balance. Reports state that total debt increased from approximately $21 billion at the start of the year to approximately $35 billion by the end of June—an increase of about 1.7x (350÷210).
There is also a figure for the future. The same secondary report states that the company guided for Q3 interest expenses of $860 million to $940 million. I have not verified the original company announcement, nor have I confirmed if the metric name refers to the same item as net interest expense, so I recommend viewing this only as an indicator of direction.
What interest is not included in the $640 million net interest expense?
The $640 million on the income statement is not the entirety of the interest attached to the money CoreWeave borrowed. According to the [[Quarterly Report (10-Q)](https://www.sec.gov/Archives/edgar/data/0001769628/000176962826000366/crwv-20260630.htm)], capitalized interest in Q2 was $79 million (compared to $23 million last year). Capitalized interest is a practice of adding interest to the cost of facilities under construction and recording it as an asset. This portion is not recorded as an expense now, but will become an expense later through depreciation. The fact that it has grown about 3.4 times compared to a year ago (79÷23) is a signal that there are that many more facilities under construction.
Let me provide an analogy. Suppose that while you are building a house, you add the loan interest you paid to the construction cost; that interest is not an expense for this year, but is blended into the value of the completed house. CoreWeave’s $79 million follows the same principle, so the $719 million obtained by adding $79 million to $640 million is closer to a simple sum of the interest incurred this quarter (calculated, may vary depending on interest income treatment). As the pace of facility construction accelerates, this hidden portion also grows.
Cash is different. The first-half interest expense is $1.176 billion, but the actual cash interest paid during the same period (excluding capitalized portions) was $806 million. Of the $370 million difference (calculated), $86 million is identified as non-cash items such as debt discounts and amortization of issuance costs. The remainder appears to be due to the timing difference between payment and expense recognition, which aligns with accrued interest rising from $332 million at the end of last year to $410 million at the end of June. I could not confirm the exact breakdown in this investigation.
In summary, CoreWeave’s interest expense has three faces: net interest expense on the income statement, capitalized interest moved to facility costs, and interest actually paid in cash from the bank account. If interest figures differ slightly between articles, it is faster to first check which of these three they are referring to.
How did the debt creating CoreWeave’s interest expense accumulate in Q2?
Interest is calculated by multiplying the balance by the interest rate. Therefore, let’s look at the balance first.
According to the 10-Q, total debt as of June 30, 2026, was $35.068 billion, of which $31.405 billion is recourse debt and $3.663 billion is non-recourse debt. Recourse debt is debt for which the entire company is responsible for repayment, while non-recourse debt is debt limited to specific projects or assets.
Looking at the Q2 cash flow statement, net proceeds from debt issuance were $13.457 billion, and debt repayments in the same quarter were $3.884 billion. The net increase is $9.573 billion (calculated). The press release only disclosed part of the composition.
A $3.1 billion delayed-draw loan was introduced as the first public syndicated method backed by HPC infrastructure, and the over $10 billion in unsecured notes and convertible bonds included the first Eurobond issuance. Adding just these two items accounts for about $13.1 billion, explaining most of the issuance. Loan interest rates and collateral conditions are not in the press release.
According to reports, a $2.6 billion term loan added in August has conditions of short-term base rate plus 5.5 percentage points. As the base rate fluctuates, the interest on this floating-rate debt also moves. The 10-Q mentions interest rate swaps for designated hedging to reduce interest rate fluctuation risk with a notional amount of $4.661 billion. I could not confirm which debt the swaps cover or to what extent.
I wanted to calculate one thing here.
Multiplying the Q2 net interest expense of $640 million by 4 gives an annual $2.56 billion, and dividing by the $35.068 billion total debt at the end of June results in about 7.3% (640×4÷35,068). However, this value is not the average interest rate. This is because debt increased during the quarter, so the end-of-June balance is higher than the quarterly average, and capitalized interest and interest income are not reflected. You only need to read the direction: if debt increases, interest is bound to follow.
How are the 9.625% coupon rate and 14.8% market yield different in CoreWeave’s interest expense?
There are two types of numbers in stories about CoreWeave bonds.
One is the coupon rate and the other is the market yield. If you mix the two, it reads as if interest expense is being paid at 14.8%, but that is not the case.
An October 14 article cited Bloomberg, stating that the yield of the unsecured notes maturing in 2032 is about 14.8%, and the 2031 notes are about 14.9%. The coupon rates are 9.625% and 9.75%, respectively. It stated that the 2032 notes are trading below 80 cents on the dollar. Since the timing of these price points is not clear, I will accept them only as market values around mid-October.
The coupon rate is the interest rate set when the bond is issued, which the company multiplies by the face value to pay annually.
Market yield is the return obtained if you buy that bond at the current market price.
Let’s provide an example. A bond with a $1,000 face value and a 9.625% coupon rate pays $96.25 in interest annually. If the market price drops to $800, a new buyer receives $96.25 for $800, earning 12.0% (96.25÷800), and if you add the capital gain of being repaid $1,000 at maturity, the yield rises further. In this case, the interest the company pays is still $96.25. Even if the price moves, the interest expense of bonds already issued does not change.
Even for the same CoreWeave debt, the interest rate difference is this large depending on the type. Since 2% convertible bonds and 15% term loans are on the same company’s books, you must first determine which debt and at what point in time were mixed when discussing an average.
So, where does the 14.8% figure have an impact? It is the cost of borrowing new money in the future. It is a signal that if the market continues to demand this level of yield, new issuances and refinancing costs could rise. Conversely, the average cost the company is currently paying is lower than this. Secondary reports summarize that based on recent filings, convertible bonds are about 2%, senior notes and term loans are generally 9~11%, and the oldest term loan is 15%. It also states that the CFO revealed during the earnings call that the weighted average cost of debt has dropped by nearly 300bp (3% points) over the past year. The author of the same article estimated the average at about 8.4%, but this is an estimate, not a company-disclosed figure.