I started my investment journey yesterday and bought some etfs. VOO + ARKK + KWEB. Any other etfs I should consider to diversify further or I should stick to these 3 only for now ?

No problem here as to my thinking, when you're completely aware of the risks involved.

Now You should stick to them for ultra-longterm independent on any crahes, crises or media hypes.

To be honest ARKK and KWEB are very technology oriented, but VOO with it's current holdings also!

A safer balancing ETF could be global VT (or SWRD). I personally do not like the typical addition:

Bonds or Bond ETFs.

Good Luck ! Have patience !!​​​

Since you have mainly equities, why not explore other asset classes to reduce your overall portfolio volatility in the event of a risk-off period? Can look into Gold or Bond. I have charted your 3 funds and added a Gold ETF in it (GLD US).

You have a turbocharger (ARKK US) in your portfolio, may want to consider adding something 'boring' such as Gold, to smooth out your portfolio returns.

For more charts of your funds, they can be accessed via the link below:

Link: https://dl.orangedox.com/fund-analysis-pdfs

File Names:

ARK NEXT GENERATION INTERNET (ARKW US Equity)_updated_270820

KRANESHARES CSI CHINA INTERN (KWEB US Equity)_updated_270820

VANGUARD S&P 500 ETF (VOO US Equity)_updated_270820

Hope it helps.​​​