Stephen Wu

Founder @ Carthage Capital | Institutional Options Fund | Ex-Amazon & Microsoft

[Stephen Wu @Swuuuuu]

That's why 'it worked great historically' is the weakest sentence in finance. The question that matters: would this rule have survived the periods it wasn't designed to explain?

[Stephen Wu @Swuuuuu]

At Amazon we killed more models than we shipped. Not because they tested poorly, because they tested too well. A model that nails every example it's already seen has a name: overfit, not smart.

[Stephen Wu @Swuuuuu]

A pattern that explains the last three years perfectly isn't an edge. It's a rearview mirror with extra steps. The real test is whether it holds once the backdrop flips: rates, correlations, which trade is crowded.

[Stephen Wu @Swuuuuu]

@ChenY390353 Good frame. The 2000 telecom buildout had the same structure: vendors financing their own customers' purchases, so revenue and demand got hard to tell apart. The real test is what happens to utilization once the financing stops.

[Stephen Wu @Swuuuuu]

Nvidia lost $200B in market value Friday, down 4%, after OpenAI disclosed a revenue run rate of $50B, $18B below the $68B figure that had been circulating. The gap between assumed AI demand and the actual number is what moved the stock, not the number itself.

[Stephen Wu @Swuuuuu]

Same session, opposite verdicts. $AAPL rose on an iPhone Duo preorder surge, trading volume 31% above its 3-month average. ServiceNow fell 5%, Salesforce 4%, on AI financing worries. Atoms the AI-debt story can't touch vs bits priced on monetizing it.

[Stephen Wu @Swuuuuu]

Source: https://t.co/Sjoqu9ozB3

[Stephen Wu @Swuuuuu]

Today's chip selloff is framed as AI-debt jitters. Underneath sits a bigger number: the S&P's CAPE ratio near 41, the second-highest reading in 150 years, beaten only by the run to 44 before the 2000 crash. Valuation extremes measure risk. They don't call the top.

[Stephen Wu @Swuuuuu]

Twilio, Snowflake, Okta, Palo Alto Networks, MongoDB, Zscaler and CrowdStrike are all down 7-11% today, 13-19% over five sessions. That is not seven separate stories. It is one multiple compressing across a factor. $TWLO leads, down 11% at 3.8x its average day.

[Stephen Wu @Swuuuuu]

Dell fell 11.3% Thursday, 3x its average daily move, after a Barclays downgrade. The downgrade doesn't dispute AI server demand. It argues the revenue growth priced as adoption is mostly pass-through from rising component costs, not more enterprises running AI. $DELL

[Stephen Wu @Swuuuuu]

Source: https://t.co/xvccxZroYH

[Stephen Wu @Swuuuuu]

$WFC trades at 1.75x tangible book after shedding its Fed asset cap. Bank of America, despite being bigger, sits near book value: $500B+ of its bonds still yield under 2% while the 10-year sits near 5%. Same Q3 season, opposite verdicts on balance sheet quality.

[Stephen Wu @Swuuuuu]

Oracle fell 8.83% Wednesday on one hotter-than-expected CPI print, the sharpest hit among AI infrastructure names. Its debt is heading toward $167B to fund the buildout. A growth story priced off a rate environment stops working the moment that environment moves.

[Stephen Wu @Swuuuuu]

Oracle fell 8.8% Wednesday, 3x its average daily move, the day a hot CPI print pushed Treasury yields higher. The AI capex debate has been about demand. Oracle's buildout runs on debt heading toward $167B, and that bill reprices every time rates move. $ORCL

[Stephen Wu @Swuuuuu]

Cisco, crushed when the dot-com boom popped, now calls itself the "picks and shovels" company for AI: $9.3B in hyperscaler infrastructure orders this fiscal year, up 4.5x from last year. The market keeps repricing old atoms-not-bits names as AI toll roads. $CSCO

[Stephen Wu @Swuuuuu]

Source: https://t.co/V0tor5DB6T

[Stephen Wu @Swuuuuu]

CoreWeave fell 14% today. Not on revenue, the quarter is tracking +159% YoY. Its bond yield hit 15%, up from 9% this summer, on $35B of debt used to buy chips it rents out. The AI buildout was never just a hardware bet. It's a credit bet, and credit just repriced. $CRWV

[Stephen Wu @Swuuuuu]

AMD has roughly tripled this year, up about 183% to north of $600. That's its best run outside the 2020 rebound. A move that size already prices in years of AI-capex growth landing exactly on schedule, leaving less room for the next data point to surprise to the upside.

[Stephen Wu @Swuuuuu]

$GTLB fell 7.2% Tuesday, 2.6x its average daily move, after a critical security flaw was disclosed in its self-managed software. For a DevSecOps platform, a vulnerability headline hits the core pitch, not just the quarter's optics.