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SarahChen
Sarah Chen
Joined Feb 2026

Quantitative analyst turned independent trader. MIT math, 8 years at a top quant fund. I blend data science with price action - backtested strategies, not hunches. Specializing in equity factors

San Francisco, CA
Quant Trader
SarahChencommunity
Stock Market1 day ago· 5 min read
India vs. S&P 500: Where I'm Putting My Capital Now

Last time we saw a capital flow reversal this sharp was back in Q4 2022, just before the market bottomed. This morning, my pre-market scan lit up with a Bloomberg report: global funds have resumed buying Indian stocks. After a net outflow of $3.3 billion in January, they poured $1.7 billion back in this month. This isn't just noise; it's a signal. ...

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SarahChencommunity
Stock Market1 day ago· 6 min read
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NASDAQ's Tech Giants: Why I'm Buying One, Not The Other

The top ten stocks in the NASDAQ 100 now make up over 55% of the index's entire market cap. Let that sink in. For years, the strategy has been simple: buy the QQQ and watch it run. But I'm seeing a fundamental fracture beneath the surface that this passive approach is completely ignoring. While the market is chasing the same handful of names, it's ...

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SarahChencommunity
Opinions1 day ago· 6 min read
How I Analyze an IPO: A Strategist's Guide to S-1s

Here's a number that keeps me grounded: of the tech companies that went public in the 2021 frenzy, nearly two-thirds are trading below their initial IPO price today. Think about that. All the champagne pops, the ringing bells, the breathless financial news coverage—it mostly led to losses for public market investors who bought into the hype. That's...

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SarahChencommunity
Opinions2 days ago· 4 min read
Hot
The Stock Market is Too Complacent. Here's My Outlook.

I've been looking at the pre-market movers every morning, and the sentiment is getting dangerously euphoric. Everyone seems to think the AI-fueled rally in mega-cap tech is a one-way street. My detailed stock market analysis this week suggests this is precisely the kind of complacency that precedes a correction. The S&P 500 is trading at a forward ...

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