TeraWulf Cash Flow and Debt Serviceability

Theseus credit protection research | 17 October 2026

USD millions unless stated otherwise | Fiscal year ends 31 December

Executive assessment

TeraWulf fits the Theseus thesis as a construction-timing and parent-liquidity risk, not as a tenant-demand risk. The Lake Mariner project debt is secured on a campus whose tenant obligations are backstopped by Google once each building commences; the 2.5 billion dollars of parent convertible notes are not backstopped by anyone. The evidence does not establish imminent insolvency at either level. It establishes a parent that must fund the equity for a second campus, collateral for a third, and any completion shortfall at the first from a cash pool that receives almost nothing from the first campus until 2030, because the WULF Compute indenture sweeps excess cash to noteholders through semi-annual repurchase offers.

The most promising research target is therefore TeraWulf Inc. parent credit, expressed through the convertible notes. Protection on WULF Compute LLC would cover a different exposure: a first-lien claim on a Google-supported rent stream, trading above par. The two cannot be substituted for each other, and a short of the project notes is in substance a short of Google.

The modeled outcome

Starting from approximately 1,200 of unrestricted parent cash at June 30, the delivery scenario, in which every building commences on schedule and the Justified project debt closes in the first half of 2027, still takes parent cash to about 70 by September 2027 and to a 240 deficit by December 2027 before the Justified debt reimburses pre-closing spend, before any ATM issuance and before the revolver. It requires 540 to retain a 300 analytical buffer at year-end 2027. The delayed-financing scenario turns negative in June 2027 at 230 and reaches 705 by September before a late-2027 debt closing. The severe scenario is negative by March 2027 at 290 and reaches 1,894 by December. These are analyst scenarios built on explicit assumptions about the size and timing of the Justified equity contribution, which the company has not disclosed; they are not forecasts of a missed payment. [Confidence: Medium on the timing, High that the Justified equity is the swing variable]

The result that matters is that the base case is tight. Management said on August 5 that existing liquidity and the Abernathy proceeds fund Lake Mariner, the Justified equity, the Muskie letters of credit and the Chesapeake acquisition "without accessing the equity capital markets." That statement is consistent with the model only if the Justified equity is below roughly 700 million dollars, or the project debt closes early enough to reimburse construction spend already made. Either condition is checkable; neither is disclosed.

Why this is not simply a short on AI

Weaker AI demand does not reduce TeraWulf's collectible rent while Fluidstack pays or Google stands behind it, and while Anthropic performs on a twenty-year lease that has not yet commenced. To reach creditors, disappointment must travel through construction delay, a tenant default before the backstop switches on, a failed project financing for Justified, or a convertible stack that can no longer be refinanced with equity. Three of those four are financing-market events, which is where the Theseus thesis lives; the fourth is an operating event the Google structure is designed to absorb. A short equity position is the only instrument the desk currently holds and it expresses all four at once with unbounded loss. [Confidence: High]

Market conclusion

No TeraWulf CDS was found in any public source and none is expected: the parent has no straight bonds, and its only agency rating is S&P's BB minus issuer rating, which a dealer would price off the converts in any case. The WULF Compute 7.75% notes due 2030 were indicated near 102.3 to 102.5 on aggregator pages, roughly a 6.4% yield, pricing the Google support rather than the issuer. The 0% convertible notes due 2032 were indicated near 82 and the 1.00% notes due 2031 near 113 on the same page, both unverified and undated. The 2032 notes, 41% out of the money, are the instrument that trades on TeraWulf's credit. No dealer was contacted and no borrow was checked.

Historical cash flow and the funding bridge

Six months to June 30, 2026, as reported

Operating cash flow less interest income is approximately negative 213. HPC leasing segment profit was 19.2 and mining segment profit 10.1 for the half, against 43.7 of cash selling, general and administrative expense and 131.1 of interest paid. The operating business does not yet cover its interest; the Lake Mariner interest reserve and the April equity raise did. Deferred rent fell by 30.8 as Core42's prepaid rent was consumed, so reported operating cash flow is slightly flattered relative to cash actually collected from customers in the period. [1]

June 30 cash by legal entity

The 200 gap between remaining project capex and adjusted project cash is the TIRA CDS report's baseline completion requirement before future rent and parent funding; its stressed figure of 579 adds a 15% overrun and six months of coupon. Both are consistent with these balances. The parent's completion guarantee is the legal path by which that gap reaches the converts. [3]

Cash events after June 30

July: 295.3 deposited as 103% cash collateral for 286.7 of letters of credit under a separate facility, plus 74.0 of letters of credit under the revolver, together satisfying the 310.7 Muskie electric service collateral and the first 50.0 Muskie transmission installment; 250.0 received from Fluidstack for the Abernathy interest; 5.3 paid under the Justified transmission reimbursement agreement. August: purchase of the remaining 144 acres at Muskie, price not disclosed. The Abernathy agreement delivers a further 150.0 on or before December 31, 2026 and approximately 130.0 on or before April 30, 2027, the latter subject to adjustment. [1]

Issuer obligations and recourse

Debt by instrument

Scheduled principal, consolidated: remainder of 2026, 13.9; 2027, 222.9; 2028, 297.3; 2029, 302.6; 2030, 2,863.4; thereafter, 2,025.0. The 2026 to 2029 amounts are WULF Compute amortization, which begins October 15, 2026, meaning the indenture's "initial phase" completion test is treated as met with CB-3. The 2030 figure is the 500 convert plus a WULF Compute balloon of approximately 2,363. The 2,025 thereafter is the 2031 and 2032 converts. [1]

Convertible notes at the October 16 close of 11.68

The stock closed at 24.70 on June 30, implied by the Google warrant liability, and at 11.68 on October 16, down 61% from the 52-week high. At June 30 all three series were in the money and the 2.5 billion was, in effect, equity. At 11.68, 2.0 billion of it is debt that must be refinanced or repaid in cash in 2031 and 2032 unless the stock recovers above 12.43 and 19.94. [Confidence: High]

How the Lake Mariner structure isolates the parent

Rent from Fluidstack is paid into a lockbox controlled by the collateral agent and passes through a waterfall covering operating expenses, scheduled amortization, interest and excess cash flow repurchase offers before any distribution. The notes carry customary restrictions on debt, liens, asset sales and distributions at WULF Compute. Google pledged the warrants to the collateral agent until each lease commences and an affiliate agreed with the collateral agent to pay the lease termination fee. The consequence for a parent creditor is that Lake Mariner's cash is spoken for until the notes are substantially repaid: the parent's claim on the campus is the residual equity in WULF Compute, realizable only on a refinancing or sale. [4, 5]

The Google backstop, precisely

Under the recognition agreements, if Fluidstack defaults in payment or becomes insolvent, Google may either pay the lease termination fee or pay all rent due and assume the lease as tenant. The backstop under each agreement becomes effective at the commencement date of the corresponding lease. CB-3's delivery in July made 600 of the approximately 3,200 of support effective; the remaining approximately 2,600 attaches to CB-4 and CB-5 as they commence. Google received 73,580,000 penny warrants, exercisable from commencement or 180 days after target commencement, expiring August 13 and 17, 2030, giving Google about 14% of the company pro forma. The warrant liability was 1,816.7 at June 30 and is about 860 at 11.68, a non-cash gain of roughly 960 in Q3. [1, 5]

Three implications. First, until CB-4 and CB-5 commence, 2,600 of the backstop does not exist, and a Fluidstack problem in that window is a TeraWulf problem. Second, Google's election to pay the termination fee rather than assume the lease would trigger a mandatory redemption of the notes under the indenture's termination-fee provisions, leaving TeraWulf with a built campus, no tenant and no project debt; that is a good outcome for the noteholders and an unknown one for the parent. Third, the backstop has already cost shareholders 14% of the company and is the reason the project notes trade above par. It does nothing for the converts. [Confidence: High on mechanics, Medium on the redemption consequence; the indenture was not read in full]

Contracted revenue and the tenant chain

Commenced minimum operating lease receipts at June 30: remainder of 2026, 40.2; 2027, 92.5; 2028, 130.0; 2029, 141.9; 2030, 146.2; thereafter, 906.5; total 1,457.3. These cover only the 102 MW commenced. On the Fluidstack value of 6.7 billion over ten years across 378 MW, CB-4 and CB-5 add roughly 600 a year once commenced, taking Lake Mariner's stabilized base rent to about 740 a year. Anthropic adds about 950 a year from 2028 if delivered. S&P estimates Justified at about 48% of contracted revenue in 2029. [1, 6, 8]

HPC leasing segment margin was 28% in Q2 (9.0 of segment profit on 31.9 of revenue) against a stated long-term target of 85%, because fit-out services passed through at a markup dilute the margin during construction and because the operating cost base is being built ahead of the rent. [1]

Free cash flow scenarios and quarterly timing

This is a parent-level, unrestricted-cash sensitivity, not a GAAP forecast and not a consolidated statement. It excludes WULF Compute's cash and spending entirely, on the basis that the indenture ring-fences both, and it brings Lake Mariner back in only through the completion guarantee. Every line below is an analyst assumption; the company has not disclosed the Justified budget, equity share, financing date or Chesapeake price. Q3 2026 has elapsed but is unreported.

Delivery case

Delayed financing case

Severe case

Negative balances are cumulative unfunded requirements, not feasible cash holdings. The 300 analytical buffer is a sensitivity, not a covenant; the revolver's minimum liquidity covenant level is not disclosed in the filing. In the delivery case the first quarter below 300 is Q3 2027 and the first negative quarter Q4 2027, with 540 needed to restore the buffer at year-end. In the delayed case those dates are Q1 and Q2 2027, with 880 needed by year-end. In the severe case the parent is negative in Q1 2027 and needs 2,194 by year-end. [Confidence: Medium]

What the cases establish

The parent's survival through 2027 is a function of one date, the Justified project-debt closing, and one number, the Justified equity share. A 75% loan-to-cost financing closing in the first half of 2027 that reimburses pre-closing construction spend removes the delivery-case deficit entirely. A closing in the second half, or one at a lower advance rate because Anthropic remains unenhanced, leaves the parent carrying a 4 billion campus on 1.2 billion of cash. S&P has already declined to assume the financing in its base case and has made it the downgrade trigger. Nothing in the Lake Mariner structure helps, because that campus's cash is swept to its own noteholders. [Confidence: High on the structure, Medium on the dates]

Remedies and their limits

WULF Compute debt service tests

The illustration uses the 2030 commenced minimum rent of 146.2 for the first row and adds CB-4 and CB-5 at the Fluidstack value of 6.7 billion over ten years scaled to 336 of 378 MW for the second. The 85% margin is management's target, not a reported figure. Amortization began with a 13.9 payment due October 15, 2026 and steps to 222.9 in 2027. During construction the interest is paid from the interest-during-construction reserve inside the 409 of restricted cash; after commencement it must be paid from the lockbox. Coverage above 1.0x therefore depends on CB-4 and CB-5 commencing before the reserve is exhausted, and the parent's completion guarantee is the bridge if they do not. Debt service coverage of 1.14x to 1.34x before the excess cash flow sweep is adequate for a BB project bond with a Google termination-fee undertaking behind it; it leaves nothing for the parent until 2030. [1, 4]

Recovery and failure transmission

The parent waterfall

Parent unsecured creditors, which at present means the convertible holders, the revolver lenders ahead of them with a security package, and the Muskie seller's put and contingent consideration, recover from parent cash, the Abernathy receivable (280 remaining), the residual equity in WULF Compute after the 3,200 of notes, the equity in the Justified developer after any project debt, and land and power rights at Muskie, Lake Hawkeye and Chesapeake. In a benign case, Lake Mariner stabilized at 630 of NOI and valued at an 8% capitalization rate is worth about 7,900, leaving about 4,700 of residual value above the notes and recovery at par for the converts. In a stressed case, in which Fluidstack fails before CB-4 and CB-5 commence, Google elects the termination fee, the notes are redeemed at par and the buildings are re-let at 60% of the Fluidstack rent after a year of vacancy, the residual could be near zero and the Justified equity could be stranded in an unfinished campus. Convertible recovery therefore ranges from par to well under 30%, and the range is set by the timing of a Fluidstack event relative to the backstop, not by AI demand. [Confidence: Medium]

The most vulnerable links

1. The Justified financing date against the Anthropic delivery date. Initial delivery is promised for the second half of 2027. Construction must begin in early 2027 to meet it, so parent cash funds the first two or three quarters whether or not the debt has closed. A financing that slips to late 2027 is the delayed case; one that does not close is the severe case and also puts the Anthropic lease at risk of delay remedies.
2. CB-5 commencement against the backstop and the amortization schedule. 1,400 of Google support and the second half of 2027's debt service both depend on a building whose first energization has already moved from Q4 2026 to January 2027. Each month of further slip is a month in which Fluidstack is an unbacked tenant on 168 MW and the interest reserve is drawn.
3. Muskie collateral with no tenant. 630.9 of power collateral is committed through Q3 2028 against a campus with power in Q4 2028 and no lease. 360.7 is posted; 270 remains in installments. This is cash leaving the parent for an asset that cannot be financed at the project level until it is leased.
4. Fluidstack's own balance sheet before commencement. The backstop is a post-commencement instrument. Fluidstack is an unrated private operator carrying leases at TeraWulf, Cipher and Hut 8 and the Abernathy campus it now owns outright. A Fluidstack funding problem in the next two quarters reaches TeraWulf before Google does.
5. 2030. 2,863 falls due in one calendar year: the WULF Compute balloon of about 2,363 in October and the 500 convert in February. The convert converts if the stock is above 8.48. The balloon requires a refinancing of a stabilized, Google-supported campus, which should be straightforward if the campus is stabilized and Google is still behind it.

Evidence that would defeat the thesis

A Justified project financing announced in the first half of 2027 at 75% loan-to-cost or better with investment-grade enhancement; CB-4 commencement confirmed in the Q3 report and CB-5 in January; the remaining Abernathy installments paid on schedule; an ATM program used at prices above 15; a disclosed restricted-payment basket at WULF Compute large enough to upstream cash; a Chesapeake acquisition funded at the project level. Any two of these move the parent's first deficit beyond 2027 and leave a protection buyer paying carry on a company whose project debt is improving.

Protection selection

Parent CDS would reference TeraWulf Inc. senior unsecured obligations; the only such obligations are the three convertible series, which are deliverable under the 2014 Definitions if the confirmation treats them as not contingent, and the revolver, which is secured. No dealer market was found and none is likely without a straight bond. A bespoke contract would need an eligible counterparty, a reference obligation the dealer accepts, and an exit, and would price off the converts in any case.

The expressions that exist: a short of the 0% 2032 converts at about 82 (unverified), which trade on credit at a 41% out-of-the-money strike and would fall toward the 60s if the parent's 2027 funding gap becomes visible; the existing equity short, which is also short Google's warrant mark and Anthropic's option value; and a capital-structure pair, long the WULF Compute 7.75% notes against short the parent equity or 2032 converts, which isolates the parent's funding risk from the project's Google support and is the cleanest statement of this paper's finding. A short of the 7.75% notes is a short of Google and is the wrong instrument. [Confidence: High]

Research priorities and source register

The decisive statement

Under the delivery assumptions, with the Justified equity at about 1,000 and the project debt closing in the first half of 2027 without reimbursing earlier spend, TeraWulf's parent cash falls to about 70 by September 2027 and to a 240 deficit by December before remedies. Under the delayed-financing assumptions the deficit arrives in June 2027 at 230 and reaches 705 by September. The Lake Mariner notes are not the exposed instrument; the parent converts are. An executable protection cost is unverified and a public CDS market does not exist.

Highest priority evidence

Obtain the Justified total budget, equity commitment, financing structure, target closing date and any Anthropic credit enhancement; the WULF Compute indenture's excess cash flow definition, restricted-payment basket and the debt service reserve and interest-during-construction balances; CB-4 commencement certificates and the Google backstop effectiveness notices; the Abernathy purchase agreement for surviving guarantees; the Muskie LOA installment schedule and the Chesapeake purchase price; remaining ATM capacity; Fluidstack's financial condition; and quotes and borrow on the 2032 converts. The Q3 report on November 6 should answer the first three in part.

Source register

[1] TeraWulf Q2 2026 Form 10-Q, filed August 5, 2026: cash flow statement, Notes 8 (leases and lessor accounting), 10 (debt), 11 (Abernathy joint venture and Justified developer), 17 (segments), 18 (subsequent events), MD&A liquidity. https://www.sec.gov/Archives/edgar/data/1083301/000108330126000166/wulf-20260630.htm

[2] TeraWulf Q2 2026 investor presentation, August 5, 2026, slides 4 to 8, 11, 13, 14, 17, 18, 20, 21, 24. https://www.sec.gov/Archives/edgar/data/0001083301/000108330126000162/terawulfq22026investorpr.htm

[3] Theseus, AI Infrastructure Credit Risk and CDS Protection, October 15, 2026, WULF Compute completion funding calculation.

[4] TeraWulf FY2025 Form 10-K, Note 10 (2030 Secured Notes terms, security, redemption, effective rate), Note 8 (Google Recognition Agreements and Warrants). https://www.sec.gov/Archives/edgar/data/1083301/000108330126000031/wulf-20251231.htm

[5] TeraWulf CB-5 lease announcement: 1.4 billion incremental Google support, 3.2 billion cumulative, 32.5 million additional warrants, about 14% pro forma ownership. https://investors.terawulf.com/news-events/press-releases/detail/114/terawulf-announces-fluidstack-expansion-with-160-mw-cb-5-lease-at-lake-mariner

[6] TeraWulf Q2 2026 earnings release and call, August 5, 2026: parent liquidity of about 1.45 billion, Abernathy installments, 9.1 per MW, CB-4 and CB-5 timing, Hawesville financing comments (Fleury: "We will be back in the debt capital markets to finance Hawesville"; "conservatively levered with a healthy equity layer"). https://www.sec.gov/Archives/edgar/data/0001083301/000108330126000162/a_wulfearningsreleaseq22026.htm

[7] Anthropic lease and Abernathy sale announcement, July 6, 2026: 401 MW, 20 years, about 19 billion, 530 million sale.

[8] S&P Global Ratings, August 5, 2026: TeraWulf BB minus affirmed, outlook to stable from positive; WULF Compute LLC BB minus positive; Justified about 48% of 2029 contracted revenue; downgrade triggers FFO to debt below 7% or EBITDA to interest below 1.5x; upgrade requires debt to EBITDA below 6x, FFO to debt above 9%, EBITDA to interest above 1.75x.

[9] Flash Compute LLC 7.25% notes, December 29, 2025: 1,300 million, Abernathy campus, Fluidstack 25-year lease. https://www.sec.gov/Archives/edgar/data/1083301/000110465925124839/tm2534384d1_8k.htm

Market indications: WULF Compute 7.75% 2030 about 102.3 to 102.5; TeraWulf 0% 2032 about 82; 1.00% 2031 about 113; all from aggregator pages, undated and unverified. Equity 11.68 at the October 16 close, 499 million shares. Agency ratings on the WULF Compute notes (Ba2 / BB / BB) are from a third-party tracker and the November 2025 deck, not re-verified with the agencies in 2026.

Calculations are reproducible from the inputs shown. Scenario figures are rounded USD millions; precision in arithmetic does not imply precision in forecasting. CDS: credit default swap. DSCR: debt service coverage ratio. NOI: net operating income. ATM: at-the-market equity program. IDC: interest during construction. LOA: the Muskie transmission agreement. ESA: the Muskie electric service agreement.