The 2018 Wealth Report from Knight Frank, a global real estate consultant firm, has found that their clients have been exposed to cryptocurrencies the least out of all the assets surveyed, ranking lower than gold.
A chart from the Knight Frank Attitudes Survey shows the percentage of clients who only experienced an increase in exposure to certain assets, which puts cryptocurrencies below gold at 21 percent.
https://cointelegraph.com/news/real-estate-consultant-wealth-report-shows-customers-exposed-more-to-gold-than-to-crypto