The traditional market, as far as I know, is not as volatile as cryptocurrency. That's why the prices of cryptocurrencies and Bitcoin are always unpredictable when it comes to their live market movements.
That's why it's still better to invest in Bitcoin if the investor understands it himself, and I also think that many institutional investors have an interest in buying it because they understand what Bitcoin can bring back to their capital.
What about Warren Buffett's Hathaway Berkshire stocks that crashed 99% in a minute? Yes ok that's about a glitch but believe me there is a lot of volatility in regular markets too. Bitcoin of course globally and daily is more volatile, but all these markets have their own bubbles depending on timeframe.
Volatility usually makes it a bad investment in short term though, as much as I like Bitcoin. Remember even the biggest like Microstrategy almost got liquidated.