Security software is arguably more of an AI bubble than semiconductors. Firms are bid up to nosebleed multiples on moderate AI-related revenue acceleration while facing medium- to long-term risks from Microsoft, Google and the AI labs and a 10-year Treasury yield above 5%. Their forward P/Es rest on non-GAAP earnings that exclude large stock compensation. A reversal could come from results missing high buy-side bars, security share gains by Microsoft or Google, or AI lab security launches. x.com  … Show more

Seven stocks trade at forward P/Es far above the S&P 500's roughly 22x, leaving little room for disappointment. Tesla, at 186x, needs Robotaxi and Optimus to deliver. SpaceX, at about 108x, is valued near $2T on about $23B of sales. Arm, at 219x, already prices in heavy AI growth. Palantir, at 81x and 66x sales, can't afford slower growth. Intel, at 52x, prices in a foundry turnaround before profits. CrowdStrike, at 172x, and Palo Alto Networks, at 80x, are great businesses at huge premiums. … Show more

Low forward earnings multiples across eleven stocks cannot persist indefinitely. Nvidia trades near 17.5x, its lowest in over a decade; Oracle near 15x, its lowest in six years. Uber is at 17x, Broadcom 19x, Vistra 15x, AppLovin 14.5x, TSMC 19x, Forgent Power Solutions 18x, Nokia 19.5x, American Express 17x and Western Digital 14x. x.com  x.com  x.com  x.com  x.com  x.com  x.com  x.com  x.com  x.com  x.com 

Debt-funded AI building is making tech stocks vulnerable to a 25-30% pullback as rates and energy prices rise. AI company borrowing reached $466B this year versus $101B a year earlier; weekly default-insurance trading on seven AI names rose from under $2B in July to over $9B in September. Keep cash for lower prices, though 30% earnings growth and a 19x market multiple argue this is not an AI bubble. x.com 

These developed-market stocks still trade at extreme multiples even after three years of expected earnings growth, so the market is pricing in perfection. On 2028 forward earnings, Rocket Lab trades at 524 times, Nebius at 282, SoftBank at 251, Tesla at 122, Strategy at 95, Cloudflare at 89, Warner Bros. Discovery at 86, Arm and Takeda at 72, and CrowdStrike at 67. x.com 

These twelve stocks could dominate the next era by meeting infrastructure and consumer demand. TSMC makes AI chips; Palo Alto Networks secures cloud; GE Aerospace earns engine-service revenue; IREN builds AI cloud; Broadcom supplies chips and networking; Intuitive Surgical sells surgical robots. Strategy offers bitcoin exposure; e.l.f. Beauty serves Gen Z; Robinhood expands finance; The Trade Desk serves advertisers; Walmart adds ads and memberships; Vistra powers AI data centers. x.com  x.com  … Show more

Stocks with very high price-to-sales ratios, such as SpaceX, Snowflake, Palantir and Trump Media, are worth avoiding because higher price-to-sales has historically led to lower returns. Their annualized ratios are about 64.5, 20, 56.5 and 400. Growth investors are better served by Micron over SpaceX, Salesforce over Trump Media, Nvidia over Palantir and Alphabet over Snowflake. These companies' innovation is impressive, but valuation matters. x.com  x.com 

The AI-led S&P 500 peak will likely end somewhere between 2000 and the Nifty Fifty: painful, but not a 34-year Japan-style wait. Breadth is ugly, with record index highs while most stocks bleed; @RestlessCentaur notes over 70% of S&P 500 stocks are down more than 10%. Today's leaders trade around 30x forward earnings, while the 2000 and Japan tops were two to three times pricier. x.com  x.com  x.com  x.com  x.com 

These 12 stocks offer exposure to AI, automation, health care, consumer growth and nuclear demand. AMD makes AI chips; Oracle builds AI cloud; Vertex has multiple drug opportunities. Arista supplies data-center switches, KLA inspection tools and Cadence chip-design tools. Palantir sells AI platforms; Symbotic automates warehouses; Alphabet spans search, cloud and AI. Celsius has US consumer momentum, AppLovin runs high-margin mobile ads, and Cameco mines uranium and co-owns Westinghouse. x.com  … Show more

Small caps such as AXT that have risen 8,800% in a year at forward P/Es in the hundreds look held by buyers hoping to dump on the next person. Investors should ask who runs them, what the moats are and whether competitors can replicate them; Nvidia's Jensen Huang says most bottlenecks can be solved within a few years, so what happens in 5-10? This pushes back on @aleabitoreddit's claim that AXT controls the materials buildout for photonics. x.com