
Amongst the usual Trump horror stories, a news item emerged from the US that grabbed Slack Investor’s eye.
NVIDIA made history by becoming the world’s first publicly traded company to surpass a $4 trillion market capitalization. – USA Today
This made me wonder about the other US Companies that are now really big and worth a lot of money. It is no surprise that the top 5 are all tech companies.
| Company | Market Cap (USD) |
| NVIDIA | $4.00 trillion |
| Microsoft | $3.75 trillion |
| Apple | $3.20 trillion |
| Amazon | $2.38 trillion |
| Alphabet | $2.18 trillion |
NVIDIA has only been around since 1993 and Slack Investor can remember buying their top range Graphic Processing Units (GPU) when he was looking to improve his home PC. The company has really moved on and started its growth spurt when they decided to design chips and software platforms specifically for Artificial Intelligence (AI). NVIDIA chips and networks are used extensively for AI development and training – and the world is crying out for these products to deal with complex AI workloads.
Dangers of current US Market

According to the Shiller PE , Buffet Indicator, and a range of other measures, the US market is overvalued. Slack investor has even considered deploying his US funds elsewhere. But, amongst the vast array of US choice, there are still companies that will do well – whatever the conditions. Slack Investor has almost 14% of his portfolio in Alphabet shares and, this might be a case of too many eggs in the one basket.
Alphabet is a great company and has done well for Slack Investor but recent developments make him think that their dominance may be slipping as it faces new competitors.
Also, there are a few annoying things that are starting to bother Slack Investor about some Alphabet products. This is tricky … as a share owner, I like my companies to make money but, it is a balance – you don’t want to kill the golden goose!
- Youtube – what a killer application! However, the amount of ads starting to creep into Youtube videos has started to destroy the experience for Slack Investor.
- Google Search – has long been my go to search engine, but the dominance of sponsored links and cluttered feel has made Slack Investor start to look at other search providers. The recent prominence of the Google search AI summary is a good step to help compete with the alternatives.
Alphabet is a conglomerate of many great businesses and my whinging about a couple of their products is just nit-picking – thank you Spinal Tap! However, Google search and Youtube ads are important to Alphabet and contribute 67% of total revenue (2024) – both of these businesses are under competitive pressure.
Perplexity
Thanks to a suggestion by Trevor, a keen reader of the blog, Slack Investor has been exploring a new AI based search engine – Perplexity. He is liking what he is seeing so far and using it more and more to search the web. It has a refreshingly simple interface and can be used via an app or a web page (https://www.perplexity.ai).

So far, it has been very useful for even complex tasks. Yesterday, I asked Perplexity to find me a ‘package holiday for Australian travellers that includes 3 nights in Bangkok and 4 nights at a beach resort’ – the results were on point! Further, NVIDIA is backing Perplexity and has just launched an AI-powered browser to challenge Google Chrome.
Time to take a look at this NVIDIA company in a Slack way.
NVIDIA (NVDA.NASDAQ) vs Alphabet (GOOGL.NASDAQ)
Both are big growing tech companies in different parts of the industry. It’s too hard for Slack Investor to look at everything so he will just condense it down to numbers that he can understand. The excellent finance resource Market Screener was used to get the statistics. Where PE (2027/8) is the predicted Price Earnings ratio for 2027/8, ROE is the predicted Return on Equity for 2027, EPS Growth (av) is the average of projected earnings annual growth 2025-2027, and the Slack Factor combines all of these metrics into one number – the higher number the better!
| Name | Symbol | PE (2027/8) | ROE (2027) | EPS GROWTH (AV) | SLACK FACTOR |
|---|---|---|---|---|---|
| NVIDEA Corp (US) | NVDA | 26.3 | 57 | 29 | 62 |
| Alphabet (US) | GOOGL | 15.2 | 26 | 13 | 23 |
Although Alphabet is still projected to be a growing company, it seems that the growth may be slowing. NVIDIA is currently in the spectacular growth stage and Slack Investor wants to be part of it.
It is not cheap (PE 2025 = 53; Forecast PE 2028 = 26 ) … but great companies seldom are. After some compulsory Tour de France viewing, I stayed up late last night to access the US markets to sell some GOOGL and buy NVDA. After the NVDA purchase, respectively, they are now 5% and 9% of my investment portfolio.




