History Says Broadcom Stock's Best Season Starts Now. It Has Risen in 13 Straight Fourth Quarters.

Broadcom has gained in each of the past 13 fourth quarters, averaging roughly 18%, and enters the new quarter about 29% below its 52-week high of $495. Management expects fiscal Q4 revenue of approximately $34.8 billion, up 93% year over year, with AI chips driving most of the projected growth. The December earnings release is the primary catalyst: it has produced sharp upside moves, including a 24% post-results jump in 2024, but shares fell 11% after the December 2025 report.

Analysis

The relevant setup is not seasonality but an unusually asymmetric earnings-validation event: AVGO must demonstrate that AI revenue is translating into mix-adjusted operating leverage rather than merely replacing lower-quality infrastructure/software growth. The market is likely to reward evidence of sustained custom-ASIC demand, backlog conversion, and stable gross margin; a revenue beat without a higher AI revenue trajectory or credible margin commentary could leave the multiple capped despite headline growth.

Competitive implications are mixed. AVGO is a direct beneficiary if hyperscalers diversify away from merchant GPUs toward internally designed accelerators, but that same model concentrates purchasing power among a small number of customers and makes order timing inherently lumpy. NVDA is the clean hedge for a semiconductor-risk pair, though the more immediate relative-risk is that hyperscaler capex moderation would hit both names while AVGO's customer-specific programs offer less near-term demand visibility.

The historical fourth-quarter pattern should be treated as positioning context, not an independent return signal: it is a small sample with a single binary catalyst and likely reflects pre-results de-risking followed by guidance repricing. Over the next 1-3 months, watch whether sell-side AI revenue estimates rise after results and whether VMware bookings, renewal rates, and EBITDA margins validate the software cash-flow bridge. A guide below expectations, AI growth deceleration, or gross-margin erosion would falsify a tactical long quickly; over 6-18 months, hyperscaler capex discipline and custom-silicon concentration are the larger structural risks.

Key Decisions for Investors

• Tactical long AVGO only on confirmation that AI semiconductor revenue/backlog guidance is raised at the December report; target a 10-15% post-results rerating over 1-3 months, with a 7-9% stop from entry if guidance or gross margin disappoints.
• For beta-neutral exposure, consider long AVGO / short NVDA in equal semiconductor-beta notional for 3-6 months if AVGO confirms accelerating custom-ASIC demand. The thesis is relative share of hyperscaler accelerator spend; exit if NVDA data-center guidance accelerates while AVGO's AI outlook is unchanged.
• Do not buy outright calls until implied volatility and the post-earnings implied move are checked. If implied move exceeds the expected 10-15% fundamental upside, use a defined-risk call spread rather than long premium; if it is materially below that range, a 2-3 month call spread becomes attractive.
• Set an earnings watchlist around AI revenue mix, aggregate customer concentration, semiconductor gross margin, VMware bookings/renewals, and capital-return guidance. Revenue upside alone is insufficient to add risk because it does not establish the durability or profitability of the growth mix.