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Monday, November 9, 2026

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Here’s what Boost Run $BRUN has already committed to pay, and what it still has to finance in H2 2026. $BRUN’s GPUs need space and power, which it rents in other companies’ data centers (colocation). The four leases signed since April already cover the space and power for the year-end deployments, and CEO Andrew Karos said its partnerships now reach 253 MW of power. $BRUN owes the rent on those sites whether or not the GPUs get financed. In 2027, the commitments $BRUN has already signed call for ~$221M of payments, including $103.5M on its GPU leases, $28.9M of rent on the sites in use as of June 30, ~$69M on the four new leases, and $20M for software. $BRUN’s $191.8M of pro forma cash and $93.6M of contracted prepayments, $285.4M together, cover the ~$221M of 2027 payments before counting any monthly billings from customers. But the same cash also pays $BRUN’s share of the H2 2026 build, so its monthly billings will have to cover part of the 2027 payments. To reach the $1.0-1.2B of GPU spending management expects for 2026, $BRUN has to deploy $663-863M of GPU servers in H2 2026, 2.3-3.0x its cash and contracted prepayments. If lessors fund 79.5% of the H2 2026 build, as they did in H1 2026, $BRUN needs $527-686M of new leases, 2.2-2.9x the $238.1M the company owed on finance leases as of June 30. The other $136-176M would be paid in cash. The $527-686M works out to $264-343M/quarter on average across Q3 and Q4, 1.3-1.6x the $208.2M of leases $BRUN took on in Q2. $BRUN’s lease debt would rise by less than the $527-686M, since the company keeps paying down its leases while adding new ones. During H1 2026, its finance lease debt rose $207.7M on $337.3M of new GPU equipment, or 61.6%, which for H2 2026 would imply ~$410-530M more debt. New leases will likely cost more than ~7% after the rise in rates. For context, at the 9.0% $IREN agreed to pay on its August GPU financing, the extra interest on $527-686M would be ~$6.5-8.5M/year, 1.6-2.1% of the $400M ARR target. And $BRUN isn’t slowing down. By June 30, the company had already placed orders well above the $578M first-year minimum in its April 2026 agreement with Dell $DELL, which also requires at least $215.5M/year of Dell equipment from April 2027 to April 2031 or a payment for the shortfall.

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