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Growth Curve Investing · Jul 24, 2026

PORTFOLIO UPDATE +269%

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Austin Lieberman · Growth Curve Investing

Happy Friday,

No trades this week and I’m sitting at essentially no cash. There’s a lot of volatility in the market and specifically in the individual stocks that we have in the portfolio. Three key points that I can’t emphasize strongly enough are:

1. Don’t invest with margin
2. Don’t invest money we might need in the next 3 years
3. Don’t over-concentrate in any single stock - I can’t tell you what size that is. For some people it’s 5% or 10%. Personally, I don’t like any single position being over 20%.

By avoiding those 3 things, we greatly decrease our stress during pullbacks and increase our chances of success and building wealth as investors.

On to this week’s update.

This week we’re covering the full portfolio, company-by-company updates, and I’ve added watchlist coverage + Best Buys for the week at the end.

Micron ripped 16% and climbed all the way back above my cost basis after being down 14% seven days ago. Cerebras jumped 22% on two major partnership announcements. And Meta fell 9% into next week’s earnings, which is either a gift or a warning.

The lifetime numbers as of Thursday’s close:

  • Total return since inception: +269%

  • CAGR: 40%

  • 1-year return: +93%

  • YTD return: +56%

  • 1-month return: +5%

  • S&P 500 over the same period: +85%

As of Thursday’s close. No changes from last week other than price.

MU at 21%. $990.21, cost basis $987.07, up slightly. Was down 14% a week ago.

Read the original on austin.substack.com

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