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Tuesday, October 27, 2026

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My bear, base, and bull cases value Boost Run’s $BRUN stock on year-end 2026 ARR (on the same basis as the multiples of CoreWeave $CRWV, Nebius $NBIS, and $IREN), which $BRUN will report with its Q4 results in March 2027. None of the three cases adds the $160.7M/year from the July order and Cohere, since both start in 2027. The peers’ contracts that start after 2026 aren’t in their year-end ARR either, so they’re priced into the multiples instead. Since the peers’ multiples leave out the debt they’ll take on to reach year-end ARR, I hold $BRUN’s net debt at today’s $244.3M, rather than adding the lease debt from its H2 2026 build. Each case’s value is year-end ARR times the multiple, minus the $244.3M of net debt, divided by the 88.8M fully diluted shares plus any new shares from a stock sale. I start with the $231.4M of ARR from contracts already running, then add (1) the June order’s $69.2M/year if it starts by December 31 and (2) however much of the $99.4M from contracts without disclosed terms is running by then. Bear case ($4.76, -46%) The bear case assumes $BRUN has no new financing to show by its Q3 report, lessors fund 70% of the H2 2026 build instead of 79.5% (below the 72.0% lessors funded in 2025), and the June order’s November 30 start slips into 2027, so 2026 GPU spending stays at the $1.0B low end of management’s range. That implies year-end ARR of $280M, 30% short of the target, a $62.2M stock sale at $8.89/share (7.0M new shares) to cover the funding gap and three months of 2027 payments, and today’s 2.5x, for a value of $4.76/share. I give the bear case about a 20% chance. Base case ($16.17, +82%) The base case assumes $BRUN lands new lease or asset-backed financing by year-end, starts the June order on November 30, and reaches its $400M target without selling stock. That implies $400M of year-end ARR at CoreWeave’s 4.2x, the median of the three peers, for a value of $16.17/share. I use today’s median, since the base case only solves $BRUN’s own financing problem. It assumes no relief on rates or borrowing costs, which would lift the peers’ multiples too. Bull case ($19.78, +122%) The bull case assumes everything in the base case, plus relief on rates and borrowing costs that lifts the peers’ multiples. That implies $400M of year-end ARR at 5.0x, still below Nebius’s 5.9x, for a value of $19.78/share. So the bull case is really a bet on the market, not on anything more from $BRUN. From $8.89/share, you’re risking a $4.13 loss (-46%) in the unlikely bear case for a $10.89 gain (+122%) in the more likely bull case. P.S. These cases use the October 16 close and predate $BRUN’s October 26 release, which says it has closed more than $600M of non-dilutive project financing in 2026.

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