The hottest Public Companies Substack posts right now

The largest public companies in early 2026 are led by semiconductor and tech giants like NVIDIA, TSMC, and ASML, while banks and big e‑commerce firms top other regions.
Africa’s biggest listed company is Naspers (~$52B), and much of its value comes from overseas investments (notably a Tencent stake) rather than building local infrastructure.
By contrast, Mercado Libre (~$111B) grew by creating Latin America’s e‑commerce and fintech infrastructure, highlighting the open question of whether African markets can yet produce a similar homegrown mega‑cap.

Investing in both early-stage and mature public companies involves similar processes. Both require assessing key milestones, or 'card flips', that can significantly change a business's trajectory.
There's a gap in funding for medium-term investments. Most capital is either short-term focused or tied up in long-term index funds, leaving opportunities for those willing to invest in companies making meaningful changes over 18 months to 4 years.
Investing in public companies is different from private investments. It allows for more patient buying, but it also requires managing the temptation to react to market fluctuations constantly.

GrabAGun recently went public, which is important because there aren't many gun companies on the stock market. This could lead to more investment and new startups in the gun industry.
Even though going public means more scrutiny and regulation, it also helps normalize the gun industry. This could be good for gun rights in the long run.
The trend of decentralization is really helping gun rights. More companies can now access funding and it allows people to learn about guns more freely.

Palantir's stock has skyrocketed, making it the most expensive on the S&P 500. This raises questions about whether its high valuation is justified based on its earnings.
The stock market is behaving irrationally, sometimes valuing companies like startups even when they are publicly traded and have slower growth forecasts.
Investors should be careful with risky trades like shorting stocks because the market can stay irrational longer than you can handle.

Building in public means sharing both the successes and struggles of a startup. It's refreshing to see companies like Roam be transparent about their challenges.
ServiceTitan is planning to go public soon, which could be a significant event in the IPO space. Their recent financial growth shows they are doing well, even if profits have slightly decreased.
Europe's startup scene is not evolving as rapidly as expected. Despite some successful companies, the overall impact on the market has been limited.

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ServiceTitan is planning to go public, targeting a large market in the trades with software and fintech services. This shows there's strong potential for growth in this essential industry.
The company has attracted significant investment from top venture capital firms, indicating confidence in its business model and future profitability.
Going public will benefit not only ServiceTitan but also the investors, providing them with returns after a long wait for exits.

In 2022, the cybersecurity industry saw 332 acquisitions, with the largest deal being VMware acquired by Broadcom for $60 billion.
Most of the acquisitions in 2022 were strategic, where one vendor acquired another, like Google buying Mandiant.
Special Purpose Acquisition Corps (SPACs) were used for acquiring cybersecurity companies, with notable large deals taking advantage of lower valuations.

Businesses can choose to stay private or go public, and both choices have pros and cons. Staying private means less access to capital but more control, while going public allows for more investment but less personal control.
There are new ways for private companies to get funding, like private share markets, which let them operate like public companies without strict rules and disclosure.
Some private businesses, especially from China, are using a trick to go public by merging with small U.S. companies. This approach can hurt the investors because they have less information and power over the management.

Lockup periods prevent insiders from selling their shares right away after an IPO. This helps keep the stock price stable and shows that insiders are committed to the company's future.
When the lockup expires, insiders can choose to sell their shares for various reasons like needing cash or wanting to diversify their investments. Their selling decisions can signal how they view the company's stock price.
Stock prices often drop when lockup periods end because more shares are available for trading. However, the overall impact can vary, especially for larger companies like Facebook, which may not see dramatic price changes.

21 companies in China raised funds across 14 sectors in 2023·Q1, focusing on Round A and Round B financing.
There were no M&A deals in the China cybersecurity market in Q1 2023.
The report provides a summary of market cap data for 29 cybersecurity public companies in China.

4 companies raised funds across 5 sectors with 1 M&A deal and 1 terminated IPO.
There are 29 cybersecurity public companies in China, and the report summarizes their market cap data in Q3.
Z-One Consulting is a key player specializing in cyber security business research and acceleration in China, providing various strategic services for start-ups and enterprises.