Harin's Stock Express

📊 Who Are the Hot Investors of 2026? What Nine Real Q2 13F Filings Actually Show Welcome back, everyone! 📊 I’m your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩‍💻✨ Every few months a fresh crop of “investors you must follow” lists appears, and they are all assembled from the same nine or ten names. So instead of writing another one from headlines, I downloaded the actual Q2 2026 Form 13F filings from the SEC and parsed them myself. To cut straight to the chase: the filings say something the lists never do — the “smart money” is not a herd with a signal, it is a crowd that openly disagrees — and by construction you read every one of its trades between 45 and 135 days late . ▲ Everything the public knows about these portfolios arrives as paperwork, on a delay, and with a lot left out of the form 📌 First, the actual ...

📅 The Week Ahead for Semis and Tech: Four Catalysts, and What Each One Can Actually Move Welcome back, everyone! 📊 I'm your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩‍💻✨ Next week gives semiconductors one company event and three macro prints. Most previews will list them and stop there, which is the part I find useless — a calendar is not analysis. What matters is which channel each event transmits through, because that determines whether it moves earnings expectations or the discount rate, and those two do very different damage. My headline view: Broadcom’s print is the loudest event but the least uncertain one, because its AI revenue is already largely pre-sold by backlog — the genuine unknown is the half of the company nobody is talking about. Meanwhile the highest-variance event for semiconductor prices is Friday’s jobs report, fo...

📈 Treasury Yields Are Rising: What That Actually Does to Stocks — and to Which Ones Welcome back, everyone! 📊 I'm your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩‍💻✨ “Rates up, stocks down” is the most repeated sentence in market commentary and one of the least useful, because it answers neither of the two questions that decide what actually happens to a portfolio: which part of the curve moved , and what multiple you own . So let me answer both with arithmetic. My claim: this year’s move is a bear flattener — the short end has risen far more than the long end — and that is a materially different signal than the fiscal-panic steepener people usually fear. The damage is real, but it is concentrated by valuation, and I can show you exactly how concentrated. ▲ Every rate discussion eventually reduces to one l...

📈 Are Semiconductors Back? What Nvidia’s Surge Actually Says About Every Other Chip Stock Welcome back, everyone! 📊 I'm your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩‍💻✨ Every time Nvidia prints a number like this one, the same trade follows within hours: buy the whole sector. The reasoning is that a rising tide lifts all silicon. I went and checked whether the tide is actually reaching everybody, and the answer surprised me enough to change what I thought I’d find. Here is the conclusion up front: the recovery is real and much broader than the AI trade — but growth rate tracks AI exposure so closely that “semiconductors are back” is simultaneously true and useless as an investment statement. The read-through from Nvidia to any other chip name has to be scaled , not assumed. Below is the scale. ▲ One industry ...

🧮 Is the GPU Still Essential? What Could Actually Replace Nvidia’s Silicon — and When Welcome back, everyone! 📊 I'm your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩‍💻✨ Nvidia reported yesterday, and the numbers make the “is the GPU still important?” question sound almost silly. But it isn’t a silly question — it is just badly posed, and the bad posing is why most answers to it are useless. My position, stated plainly: the GPU is not one product, it is three different jobs, and substitution is already well advanced in one of them while barely started in another. Asking whether “something will replace the GPU” produces mush. Asking which job gets taken first, and what has to be true for it to happen produces an answer you can actually watch for. And the deciding variable is not speed. It is fungibility —...

💼 What It’s Actually Like Being a Woman on a Quant Desk: Ratios, Bias, and Daily Reality Welcome back, everyone! 📊 I'm your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩‍💻✨ I get this question more than any other, and it usually arrives in one of two shapes: either “is it as bad as people say?” or “is all that talk overblown?” Both framings want a verdict. What I can offer instead is the thing I trust more — the numbers, and then an honest account of what those numbers feel like from inside a seat. Here is my thesis up front: quantitative work is unusually well defended against bias, and that is exactly why the bias relocates to everything surrounding the work. A backtest does not know who wrote it. A Sharpe ratio has no opinion about your voice. But who gets capital allocated, who presents to the investment committee, whose id...