History Says This Is What Will Happen to Broadcom Stock After Sept. 2

Broadcom’s fiscal Q3 earnings on Sept. 2 are expected to be a key catalyst for 2026, with the stock having fallen more than 12% after its prior quarter (June 3) when management kept its AI semiconductor revenue guidance for fiscal 2027 at $100B. After the sell-off, AVGO is down over 25% from its all-time high and has historically been prone to declines following earnings. The setup is bifurcated: a raise in 2027 AI guidance could drive a sharp rally, while steady guidance could leave shares flat or lower, with valuation around 31x forward earnings near the low end of its year range.

Analysis

This is an expectations-management event more than a quarterly fundamentals event. The stock’s next move will be driven by whether management can lift the 2027 AI revenue anchor; if they merely repeat it, the market is likely to treat that as a softening of conviction and keep compressing the multiple even if the quarter itself is fine. The asymmetry is that a modest upward revision could re-rate AVGO quickly because the business has enough non-AI cash flow to support buybacks/dividends while the AI narrative stays intact.

Second-order, AVGO matters as a read-through on how hyperscalers are allocating AI capex between merchant GPUs and custom silicon. A stronger guide is mildly negative for NVDA on a relative basis because it implies more budget share is being directed to bespoke compute, even if total AI spend keeps rising; that would favor AVGO over the broader semis basket. Conversely, a flat or muted guide would be constructive for NVDA/SMH because it would suggest custom ASIC adoption is taking longer to monetize and that GPU spending remains the default.

The near-term risk is binary gap risk around the print; over 1-3 months the key catalyst is whether management can tighten the 2027 path without raising execution risk. Over 6-18 months, the real falsifier is not one quarter but whether hyperscaler refresh cycles stay disciplined and whether AVGO’s AI mix can keep scaling without margin dilution. If they cannot show that, the current valuation floor is less durable than it looks.

Key Decisions for Investors

• Long AVGO vs. short NVDA, beta-adjusted, into the earnings window only if you want relative-value exposure to a possible upward revision in 2027 AI guidance; target a 1-2 month hold and cut if AVGO merely reiterates the long-term number.
• If AVGO gaps down on an unchanged 2027 outlook, buy the dip for a 3-6 month horizon only if it holds the post-print low for 2-3 sessions; the thesis is valuation support plus persistent AI cash flow, but it fails if subsequent guidance confirms deceleration.
• For event-risk control, use a small AVGO call spread instead of outright stock ahead of the print if implied move is not already overpriced; this captures upside from a raised guide while limiting downside to a guidance repeat.
• Watch NVDA and SMH as confirmation trades: if AVGO strength is paired with NVDA underperformance, it signals market share rotation toward custom silicon; if both rise, the interpretation is broader AI capex acceleration rather than substitution.