SpaceX's publicly traded bonds now yield north of 7%, placing them within 50 basis points of the BB+ threshold Bloomberg indexes use to separate investment-grade from speculative-grade debt. The $1.5 billion bond tranche maturing in 2028 traded at 92 cents on the dollar Thursday, down from par as recently as mid-March. The company remains unrated by the major agencies, but credit desks are pricing in stress that equity observers have thus far ignored.

The move follows a quarter in which SpaceX disclosed $2.1 billion in annualized free cash consumption to bondholders, driven by Starlink satellite deployments and Starship test campaigns. Revenue from launch contracts and early Starlink subscriptions totaled an estimated $4.6 billion in trailing-twelve-month figures, but capital expenditures ran at $6.3 billion over the same window. The gap narrows if you believe internal forecasts for 18 million Starlink subscribers by late 2025, but bond traders are paid to price what exists, not what the deck promises. The debt stack now sits at roughly $8 billion, with another $3 billion in structured vendor financing that doesn't appear on simplified cap tables but absolutely appears in credit models.

This matters because the bond market is solving a different equation than the venture and crossover funds that last priced SpaceX equity at a $210 billion post-money valuation in December. Equity assumes the terminal state—global satellite broadband, Mars logistics, reusable everything. Debt assumes the path—and the path currently involves lighting $150 million per month on fire while competing with OneWeb's European subsidy stack, Amazon's $10 billion Kuiper buildout, and a Chinese state satellite program that doesn't answer to bond covenants. If Starlink subscriptions undershoot by 20% or deployment costs overshoot by the same margin, the 2028 bond starts looking like a 2027 restructuring conversation. The equity might still trade at $200 billion on that day, but the bonds won't trade at par.

The tell is in the cross-asset behavior. SpaceX's common stock fell below its last primary offering price of $135 this week for the first time, a technical break that secondary platforms mostly ignored as noise. But credit traders noticed the volume—$480 million in secondary bond turnover Tuesday and Wednesday, more than double the trailing three-month daily average. That's not retail. That's credit funds and insurance allocators quietly stepping out of a name that no longer pencils at single-A implicit ratings. The bonds pay a 5.25% coupon, which looked generous in 2021 when they priced. At a 7% yield, the market is saying that coupon should have been 200 basis points higher—or the leverage should have been $3 billion lower.

Watch for two catalysts in the next 90 to 120 days. First, SpaceX's semi-annual unaudited financials, typically shared with bondholders under NDA in late June, will reveal whether Starlink's subscription trajectory is tracking the 15% quarter-over-quarter growth the equity story requires or the 8% growth the bond math assumes. Second, if the $2.5 billion credit facility SpaceX syndicated in 2023 gets drawn beyond the current $900 million outstanding, that's a liquidity signal bond desks will reprice within the hour. The facility was marketed as a backstop; using more than half of it turns it into a crutch.

The 2028 bonds now trade 140 basis points wider than SpaceX's 2026 maturity, an inversion that credit markets reserve for names approaching a stress point. That's not default pricing—it's repricing for a world where Elon Musk might prefer to negotiate with his lenders rather than his term sheet.