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Even If You're "Good", Diversification Matters

May 15, 2012

I privately received a couple of interesting comments on my diversification post:

One of RSCM's angel advisors wrote, "I would think most smart people get it intellectually, but many are stuck in the mindset that they have a particular talent to pick winners."

One of my Facebook friends commented, "VC seems to be a game of getting a reputation as a professional die thrower."

I pretty much agree with both of these statements. However, even if you believe someone has mad skillz at die-rolling, you may still be better off backing an unskilled roller. Diversification is that powerful! To illustrate, consider another question:

Suppose I offered you a choice between the following two options:

(a) You give me $1M today and I give you somewhere between $3M and $3.67M with 99.99% certainty in 4 years.

(b) You give me $1M today and a "professional" rolls a standard six-sided die.  If it comes up a 6, I give you $20M in 4 years. Otherwise, you lose the $1M. But this guy is so good, he never rolls a 1 or 2.

The professional's chance of rolling a 6 is 25% because of his skill at avoiding 1s and 2s. So option (b) has an expected value of $5M. Option (a) only has an expected value of $3.33M. Therefore, the professional has a 50% edge. But he still has a 75% chance of losing all your money.I'm pretty sure that if half their wealth were on the line, even the richest players would chose (a).  Those of you who read the original post probably realize that option (a) is actually an unskilled roller making 10,000 rolls.  Therefore:

Diversifying across unskilled rolls can be more attractive than betting once on a skilled roller.

Of course, 1 roll versus 10,000 hardly seems fair.  I just wanted to establish the fact that diversification can be more attractive than skill in principle.  Now we can move on to understanding the tradeoff.To visualize diversification versus skill, I've prepared two graphs (using an enhanced version of my diversification spreadsheet).  Each graph presents three scenarios: (1) an unskilled roller with a standard 1 in 6 chance of rolling a 6, (2) a somewhat skilled roller who can avoid 1s so has a 1 in 5 chance of rolling a 6, and (3) our very skilled roller who can avoid 1s and 2s so has a 1 in 4 chance of rolling a 6.First, let's look at how the chance of at least getting your money back varies by the number of rolls and the skill of the roller:

The way to interpret this chart is to focus on one of the horizontal gray lines representing a particular probability of winning your money back and see how fast the three curves shift right.  So at the 0.9 "confidence level", the very skilled roller has to make 8 rolls, the somewhat skilled roller has to make 11, and the unskilled roller has to make 13.

From the perspective of getting your money back, being very skilled "saves" you about 5 rolls at the 0.9 confidence level. Furthermore, I'm quite confident that most people would strongly prefer a 97% chance of at least getting their money back with an unskilled roller making 20 rolls to the 44% chance of getting their money back with a very skilled roller making 2 rolls, even though their expected value is higher with the skilled roller.Now let's look at the chance of winning 2.5X your money:

The sawtooth pattern stems from the fact that each win provides a 20X quantum of payoff.  So as the number of rolls increases, it periodically reaches a threshold where you need one more win, which drops the probability down suddenly.Let's look at the 0.8 confidence level.  The somewhat skilled roller has a 2 to 5 roll advantage over the unskilled roller, depending on which sawtooth we pick.  The very skilled roller has a 3 roll advantage over the unskilled roller initially, then completely dominates after 12 rolls. Similarly, the very skilled roller has a 2 to 5 roll advantage over the somewhat skilled roller, dominating after about 30 rolls.

Even here, I think a lot of people would prefer the 76% chance of achieving a 2.5X return resulting from the unskilled roller making 30 rolls to the 58% chance resulting from the very skilled roller making 3 rolls.But how does this toy model generalize to startup investing? Here's my scorecard comparison:

  • Number of Investments. When Rob Wiltbank gathered the AIPP data set on angel investing, he reported that 121 angel investors made 1,038 investments. So the mean number of investments in an angel's portfolio was between 8 and 9. This sample is probably skewed high due to the fact that it was mostly from angels in groups, who tend to be more active (at least before the advent of tools like AngelList).  Therefore, looking at 1 to 30 trials seems about right.
  • "Win" Probability. When I analyzed the subset of AIPP investments that appeared to be seed-stage, capital-efficient technology companies (a sample I generated using the methodology described in this post), I found that the top 5% of outcomes accounted for 57% of the payout. That's substantially more skewed than a 1 in 6 chance of winning 20X.  My public analysis of simulated angel investment and an internal resampling analysis of AIPP investments bear this out. You want 100s of investments to achieve reasonable confidence levels. Therefore, our toy model probably underestimates the power of diversification in this context.
  • Degree of Skill. Now, you may think that there are so many inexperienced angels out there that someone could get a 50% edge. But remember that the angels who do well are the ones that will keep investing and angels who make lots of investments will be more organized. So there will be a selection effect towards experienced angels. Also, remember that we're talking about the seed stage where the uncertainty is the highest. I've written before about how it's unlikely one could have much skill here. If you don't believe me, just read chapters 21 and 22 of Kahneman's Thinking Fast and Slow. Seed stage investment is precisely the kind of environment where expert judgement does poorly. At best, I could believe a 20% edge, which corresponds to our somewhat skilled roller.

The conclusion I think you should draw is that even if you think you or someone you know has some skill in picking seed stage technology investments, you're probably still better at focusing on diversification first.  Then try to figure out how to scale up the application of skill.

And be warned, just because someone has a bunch of successful angel investments, don't be too sure he has the magic touch. According to the Center for Venture Research, there were 318,000 active angels in the US last year. If that many people rolled a die 10 times, you'd expect over 2,000 to achieve at least a 50% hit rate purely due to chance! And you can bet that those will be the people you hear about, not the 50,000 with a 0% hit rate, also purely due to chance.

Further Reading

Enjoyed this post? Here are a few more posts that you might find just as insightful and engaging.

For Investors
For Founders

Report: How Are Pre-Seed and Seed VC Firms Investing in 2024?

The venture market bottomed out from historic highs last year. Total deal volume slumped roughly 50% from 2021’s peak, exit activity hit a ten-year low, and venture fund performance dropped across the industry. These rapid changes have created a new landscape for venture capital, and it’s affected how VCs are investing.

Right Side Capital surveyed 110 Pre-Seed and Seed VCs from February 2024 to May 2024 on their investment activity and strategies in 2023 and their plans for 2024, with a focus on Pre-Seed Rounds and Seed Rounds. VCs revealed that they are optimistic about the funding landscape in 2024 and that they have high expectations for revenue levels and growth rates from portfolio companies.

Below we share what we learned.

VCs Were Active in Pre-Seed Rounds in 2023

Surveyed VCs revealed that they were fairly active in Pre-Seed investment last year. Of the VCs surveyed, 87.0% made at least one investment in round sizes of $1M to $2.5M, and 35.2% made more than five investments at this stage.

Seed Round Deal Volume Was Less Than Pre-Seed Round Deal Volume in 2023

VCs reported less deal volume in Seed Rounds in 2023 as compared to Pre-Seed Rounds during the same period. Only 12.1% of surveyed VCs made more than five investments at this stage, and 25.9% made no investments at all. The majority (62.0%) made between one and four investments at this stage.

Investment Outlook Is Optimistic in 2024

Nearly half (45.4%) of respondents plan to make five to nine new investments in 2024, which is a significant increase from 2023, and 24.1% said they planned to make 10 or more investments this year. All respondents planned to make at least one investment, which indicates a more positive outlook from 2023.

Pre-Seed Fundraising: What VCs Expect from Founders in 2024

At the Pre-Seed fundraising stage, only 46.3% of surveyed VCs will invest in a pre-revenue startup, 27.4% will invest in a startup with sub-$150K annual recurring revenue (ARR), and 14.7% require $150K – $499K in ARR. For some surveyed VCs, revenue expectations can be even higher: 11.7% said they required startups to have $500K or more in ARR.

Growth expectations are high for Pre-Seed Rounds, with 34.8% of surveyed VCs expecting startups to double year over year at this stage, and 37% expecting startups to triple year over year.

Seed Fundraising: What VCs Expect from Founders in 2024

Expectations vary a lot for startups raising their seed rounds. At this stage, 17% of surveyed VCs will invest at pre-revenue, but 24% want to see ARR of $1M or more. That’s a big change from four years ago, when $1M or more in ARR was the criteria for Series A funding.

Surveyed VCs expect aggressive growth at this stage, with 47% investing in startups that are doubling year over year and 34% investing in startups that are tripling year over year.

Most VCs Recommend 6-12 Months of Runway

The majority (53.7%) of surveyed VCs advise their portfolio companies to maintain six to twelve months of runway before raising their next round. Only 29.6% of VCs advise startups to have over 18 months of runway.

Capital Efficiency Is More Important Than Ever

VCs reported that, in this leaner landscape, they are placing a greater emphasis on capital efficiency for portfolio companies. For 81.5% of respondents, capital efficiency is more important than ever before. The survey included an option for respondents to indicate that capital efficiency was unimportant, but not a single respondent selected it.

Roughly One Third of VCs Have Changed Their Investment Thesis

We asked respondents to write in answers about how their firm’s investment thesis has changed in 2024. Below we break down the results of those write-in answers.

Summary of Investment Thesis Changes in 2024

No Change (58%) The majority respondents indicated that their investment thesis has not changed significantly from 2023.

More Focus on Specific Areas (15%) Some VCs have an increased focus on specific sectors such as health, cyber, AI, and cybersecurity. They’re putting a greater emphasis on software, particularly AI-powered applications, and avoiding certain sectors like consumer and hardware.

“Like everyone else, [we have] more interest in AI-powered applications.”

– Survey respondent

Adjustments in Investment Strategy (10%) Some VCs are shifting to smaller check sizes. They indicated more capital allocation for Pre-Seed and they are rightsizing investment amounts to achieve more significant ownership.

Greater Sensitivity to Valuations and Due Diligence (7%) VCs are more sensitive to valuations, ensuring companies have more runway, and conducting more thorough due diligence. They’re also focusing on financing risk, revenue, traction KPIs, and efficient use of capital.

“[We’re] thinking more about financing risk and making sure companies have more runway.”

– Survey respondent

Increased Sector Preferences and Deal Dynamics (5%) A small subset of VCs have a growing preference for companies with experienced founders, significant revenue, and efficient burn rates. They’re avoiding overinvested spaces like sales-enablement software and sectors that are seen as high risk for next-round funding.

“[We’re] rarely taking pre-product risk unless the team has prior operating experience.”

– Survey respondent

No Specific Answer or N/A (5%) Some responses were “N/A” or did not specify a change in investment thesis.

Final Conclusions from the RSCM 2024 VC Survey

The venture capital landscape in 2024 has adapted to a leaner and more cautious environment. Right Side Capital’s survey reveals a higher bar for revenue expectations and a greater emphasis on capital efficiency than in more bullish periods.

Despite the challenges of 2023, VCs are optimistic about 2024 and plan to increase new investment volume. Overall, VCs are adopting a resilient and forward-looking approach, emphasizing sustainability and capital efficiency to navigate the transformed economic landscape.

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