Fears over rising bond yields and the return on AI investment have pressured share prices, at least for some companies, creating uncertainty for investors.
However, market corrections can also provide opportunities to invest in quality businesses at more reasonable valuations.
The key is identifying companies with strong fundamentals, durable competitive advantages and attractive long-term growth prospects.
This article will take a closer look at five S&P 500 stocks that have suffered a decline of at least 10% over the past month (as at 30 October 2026).
Meta Platforms (NASDAQ: META) – The Mega-Cap Growth Stock
Although investors were excited over the rapid uptake of Meta’s Muse agent, questions remain over whether the returns will justify the company’s massive AI investments.
In fact, the company’s recently released figures for 3Q2026 showed free cash flow going negative.
However, the company’s core advertising business is still going strong.
In 3Q2026, revenue grew 26% year on year, although the operating margin halved to 20%, partly because of legal costs.
Looking ahead, Meta’s ability to monetise its AI business remains key, and this will depend on how much value it can extract from consumers (from advertising, subscription fees, commissions etc.), and what percentage of its 3.6 billion daily active user base it can activate.
Meta also faces various legal and regulatory challenges, including the August 2026 agreement to resolve litigation related to teen mental health, which provides for US$18.6 billion in settlements.
These could end up becoming a recurring cost of doing business, and not just one-offs.
AT&T Inc (NYSE: T) – The Undervalued Consumer Giant
AT&T’s stock is down by 11.9% over the past month, amid concerns that Starlink, the satellite internet service of SpaceX (NASDAQ: SPCX), will muscle in on the telco business.
Despite the decline, the company’s business is performing decently, especially for a mature telco.
Overall revenue for the first 9 months of 2026 was 3.5% higher than a year earlier, reaching over US$95 billion.
Notably, its advanced connectivity segment, which aims to provide subscribers with both 5G and fibre coverage, is growing faster than the overall business.
The company expects to generate over US$18 billion in free cash flow in 2026, rising to over US$21 billion in 2028.
This will provide it with plenty to return to shareholders, whether in the form of dividends or share buybacks.
The telco is currently trading at a forward price-to-earnings (P/E) ratio of just 8.3x, compared to 12.6x in March this year.
This could prove to be a bargain, but only if Starlink proves to be less of a threat than feared.
Micron Technology (NASDAQ: MU) – The AI / Semiconductor Opportunity
This sell-off comes despite the company’s strong financial performance.
Revenue for its financial year ending September 2026 (FY2026) was up 256% to US$133 billion.
Net income rose to 9.1 times its FY2025 level, reaching US$87 billion.
The company expects its FY2027 performance to be even stronger, as industry demand has actually gone up over the past quarter.
However, many of these gains appear to be already priced in as Micron’s share price rose 884% between January 2025 and October 2026, making investors nervous at the slightest hint of turbulence in AI-driven demand.
There’s also the spectre of more competition.
Currently, the global market for memory chips is an oligopoly – Micron, Samsung Electronics (KRX: 005930) and SK Hynix (KRX: 000660) accounted for 87% of global DRAM market share in 2Q2026.
But new competitors, such as China’s ChangXin Memory Technologies (SSE: 688825), or CXMT, may disrupt the market, resulting in lower margins.
The Charles Schwab Corporation (NYSE: SCHW) – The Financial Blue Chip
Charles Schwab is a leading investment services firm with over US$13 trillion in client assets.
The stock has declined, in part, because of fears that AI agents will be able to help investors trade, disrupting the business model of incumbents such as Charles Schwab.
The company continues to deliver strong financial performance.
Revenue of US$20.7 billion in the first nine months of 2026 (9M2026) was 18% higher than a year ago, while net income rose by 28% to US$8.1 billion.
Schwab is not waiting for AI to eat its lunch.
It recently launched Charley, an AI-powered assistant to provide clients with conversational access to tools and insights.
Schwab also serves Registered Investment Advisors (RIAs) in the US and has partnered with Anthropic to bring Claude to these RIAs.
These initiatives, along with its brand name and long track record, should enable Schwab to adapt and thrive in this new AI era.
Alphabet Inc. (NASDAQ: GOOG) – The Quality Compounder
Alphabet has declined by 16.9% over the past month, as investors grew concerned about its high AI spend, as well as the cannibalisation of its higher-margin search business by its lower-margin AI search feature.
Alphabet reported negative free cash flow (FCF) of US$9.1 billion in 3Q2026, its second consecutive quarter in the red.
However, top-line growth is actually accelerating.
In 3Q2026, revenue was 25% higher than a year ago, compared to 16% in 3Q2025.
If the company is able to keep growing revenue, this might offset margin declines, allowing the absolute level of profits to continue rising.
Alphabet remains one of the best-placed enterprises to navigate the AI era, with a unique combination of cloud, AI, and advertising businesses that can benefit from the technology.
One potential game-changer that the market may not be paying enough attention to is its business selling tensor processing unit (TPU) chips, its homegrown AI chip system, which was once reserved for internal use but is now being sold directly to customers.
The value of the TPU business has been estimated at US$900 billion, which would make a meaningful contribution to Alphabet’s current US$3.4 trillion market capitalisation.
Get Smart: Buy Quality Businesses, Not Just Falling Share Prices
Market sell-offs can provide opportunities to invest in strong companies at more attractive valuations.
Investors should assess earnings resilience, cash generation, competitive advantages and valuation before making a decision.
Not all AI “winners” will survive this cycle.
But a few companies already have the scale, cash flow, and edge to pull ahead. We highlight what to look for in our FREE volatile market report. Download it here.
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Disclosure: Silas H. does not own shares in any of the companies mentioned.
