How Many Tech Stocks Should You Hold In Your Portfolio?

The simplest questions are often the most difficult to answer. How many stocks should you hold in a portfolio? Starting at 21,000 feet, most investors are people with some amount of capital they want to put somewhere so it can grow over time. The duration of time often correlates to risk tolerance and the amount of capital at stake. There are old stock market millionaires, and there are bold stock market millionaires, but there are few old bold stock market millionaires. People who treat the stock market like a casino won’t keep their capital for very long. The more money you have, the more you become interested in capital preservation. The more stocks you hold, the less risk you’re taking on.

Investors need to start with a holistic look at their total assets under management, then ask themselves the first question. How much of my capital do I want to invest in tech stocks? If you’re risk averse like we are, you might keep that number under 25%.

A breakdown of the asset class allocation for money being managed  by Nanalyze
Our asset class allocation – Credit: Nanalyze

Our 34 tech stock portfolio contains about 22% cash, so our actual exposure to tech stocks is even lower. The question we’re asking ourselves lately is how many tech stocks should we hold as a maximum? Other investors might be asking how many stocks they should hold at a minimum. This is where an objective rule can be a useful addition to our investing methodology. First, we can start by looking at what the academics say.

The 30-Stock Rule

Diversification helps reduce company-specific risk along with all other kinds of risk that may affect a portfolio – country, political, credit, and currency to name a few. Being too diversified can be problematic as well. If you bought every stock in the Nasdaq Composite Index, you’d be essentially doing what a passive manager does – trying to match the performance of a benchmark. Popular opinion says that somewhere between 20 to 25 stocks is the diversification sweet spot.

Popular opinion says that somewhere between 20 to 25 stocks is the diversification sweet spot.  Credit: A Random Walk Down Wall Street by Burton Malkiel
Credit: A Random Walk Down Wall Street by Burton Malkiel

More importantly, investors need to consider the time needed to manage a portfolio of stocks. If you plan to jump in and out of the market, be prepared for a large time commitment and don’t expect to sleep well at night. If you buy quality companies with a time horizon of a decade or more, then you can set it and forget it. For a quality company, checking in about once a year is sufficient. Just be prepared to stomach some serious volatility over time.

Tech Stock Volatility

The recent dip in tech stocks saw many concerned emails coming in from readers who wanted some reassurance that everything was well. This minor correction you’re seeing is small potatoes. When the dot-com bomb exploded, the Nasdaq composite index fell -76% in the space of 30 months. Many were adding all the way down as the knife fell. Even stocks like Intel, Oracle, and Cisco weren’t immune, all of which lost -80% of their value. It took an entire 15 years for the Nasdaq to return to its previous highs. This is what the situation looks like today.

Chart showing that it took an entire 15 years for the Nasdaq to return to its previous highs. This is what the situation looks like today.
The blue arrow is the dot-bomb peak, the red arrow is The Rona, and the upper right is where we are today – Credit: Yahoo Finance

So, when you’re trying to figure out how many tech stocks to hold, make sure you know what you’re getting into. The only reason we’ve allocated 22% of our assets to tech is because we’re extremely bullish on technology over the coming decades. That’s about the only way we can justify having so much exposure to such a risky asset class.

How Many Stocks Will We Hold?

We recently wrote about how the number of companies going public – over 900 this year so far – has exceeded even the dot-bomb days. Many of these companies use special purpose acquisition companies (SPACs) to go public very quickly, which means investors are being overwhelmed with exciting options.

Number of U.S. listed IPOs each year.
Credit: Wall Street Journal via CB Insights
Credit: Wall Street Journal via CB Insights

Even if you largely avoid SPACs like we do, there are still many compelling stories to invest in. Setting yourself a limit means you now need to consider a would-be investment in the context of what you’re already holding.

For us, it’s all about getting exposure across 12 categories we cover; 11 in technology and one in cannabis. If we allow for three stocks in each category, that would be 36 stocks (3 X 12). If we then add a 10% buffer and round up, we get 40. We’re proposing that the number of stocks we hold in our tech portfolio should never exceed 40, and should never be less than 30. These are nice round numbers that are easy to remember and they also flow well when it comes to weighting.

  • For an equally weighted portfolio of 30 tech stocks, your target position size would be 3.33%
  • For an equally weighted portfolio of 40 tech stocks, your target position size would be 2.5%

Right now we’re holding 34 tech stocks across a broad number of themes with nearly half our exposure in three categories – AI, Life Sciences, and Green Technology.

Nanalyze's 34 tech stocks portfolio across 12 categories we cover; 11 in technology and one in cannabis.
Credit: Nanalyze

An obvious question is do we limit the number of stocks for any given category? Should Life Sciences really have 7 stocks, or should we cap that at some arbitrary number? Perhaps it’s best to let the availability of appealing stocks decide this over time. When a limited number of slots are available, they suddenly become more valuable, and we may remove an asset to add one. For example, if we buy shares in AutoStore, we may decide that’s a good time to divest our robotics ETF. We can then measure the success of our decision easily by benchmarking AutoStore against the ETF’s performance.

Another question surrounds having a minimum number of stocks for each category. For example, you’ll see we don’t have any exposure to several categories – space and cannabis. Regarding the former, we have our eye on a few space stocks, something we talked about in our recent piece on Why We’re Avoiding Rocket Lab Stock – RKLB. As for cannabis, our research team is currently examining a potential entrance into this sector for several reasons, so stay tuned.


Every individual investor needs to decide how much capital to allocate to tech stocks and how many to hold. Our capital allocation decision is largely driven by our risk-averse approach to investing, while our choice of 40 stocks maximum is dictated by the structure of our business. The most important decision being made is the percentage of our capital allocated to tech stocks. Whatever number of tech stocks you choose to invest in, just be prepared for lots of volatility.

Tech investing is extremely risky. Minimize your risk with our stock research, investment tools, and portfolios, and find out which tech stocks you should avoid. Become a Nanalyze Premium member and find out today!

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