A Question of Moat: Should You Participate in Slack Technologies' Public Offering?

Slack Technologies, a provider of workplace collaboration software, is slated to go public on June 20 in a high-profile direct public offering of shares. The first -- and most important -- question any business-focused investor ought to be asking is, Does Slack have an "economic moat," that is, a sustainable competitive advantage? The vast majority of companies don't, and reviewing a company's moat situation before buying shares can save you a lot of heartache and lost money.

In September 1999 -- a(nother) period during which technology companies were being floated at stratospheric valuations -- billionaire investor Warren Buffett said that, "The key to investing is not assessing how much an industry is going to affect society, or how much it will grow, but rather determining the competitive advantage of any given company and, above all, the durability of that advantage."

That central concept is the basis for my five-minute analysis of any company going public to determine whether it's worth a closer look. (I lay out the rationale and steps of the methodology in more detail here.) And here I will apply the analysis to Slack's Form S-1, a legal document all companies must file with the Securities and Exchange Commission before going public, describing the offering and the company.

The fortifications of Xi'an, also known as the Xi'an City Wall, include a wide moat; Shaanxi province, China.
The fortifications of Xi'an, also known as the Xi'an City Wall, include a wide moat; Shaanxi province, China.

The magnificent fortifications of Xi'an, also known as the Xi'an City Wall, include a wide moat. Image source: Getty Images.

Does Slack's filing mention "competitive advantage"?

Yes, once. Unfortunately, it's in reference to its rivals' competitive advantages: "Many of our existing competitors have, and some of our potential competitors could have, substantial competitive advantages such as greater brand name recognition and longer operating histories, larger sales and marketing budgets and resources, [and] broader distribution."

The list goes on, but you get the idea. It's not an auspicious start in this analysis for Slack, which strikes out at its first at-bat. Perhaps we'll have more luck with the next question.

Does Slack's filing mention "pricing" in relation to its services or its industry?

"Pricing" appears 23 times in the filing, but only two passages are relevant in this context. First: "We expect this trend [of large merger and acquisition transactions in the technology industry] to continue as companies attempt to strengthen or maintain their market positions in an evolving industry. Companies resulting from these possible consolidations may create more compelling product offerings and be able to offer more attractive pricing options, making it more difficult for us to compete effectively."