Shareholders of both QXO and TopBuild voted to approve QXO's acquisition of TopBuild, marking a decisive step toward closing the deal. The vote removes the most significant contingency risk for merger arbitrageurs who have been long BLD against deal terms. QXO's own revenue figure — an extraordinary +11,925% YoY jump to $6.8B — reflects the company's acquisition-driven roll-up model under Brad Jacobs rather than organic growth, while its net margin remains negative at -4.1%.

TopBuild (BLD) is the more financially grounded entity here: $5.4B in revenue growing at a modest 1.5%, a 29% gross margin, 9.6% net margin, and $18.28 in diluted EPS. The deal gives QXO a profitable, cash-generative insulation and building products installer as its core operating asset, a critical foundation for Jacobs' ambition to build a large building products distribution conglomerate.

With shareholder approval secured, the remaining risk for arb players is regulatory clearance and any closing mechanics. The spread between current BLD price and deal terms is the key variable — if the arb spread has already compressed to near-zero, there is little juice left. The more interesting forward question is whether QXO as the combined entity can expand BLD's margins through procurement scale and technology overlays, or whether leverage and integration costs pressure near-term profitability.

Bull case for QXO post-close centers on Jacobs' track record (XPO, GXO, RXO) of creating shareholder value through disciplined M&A and operational improvement. Bear case is that QXO currently runs at negative net margins and is levering up to acquire a slow-growth business in a housing market facing affordability headwinds. Investors should watch closing date confirmation, leverage metrics at close, and any updated combined-entity guidance.