Real Estate Investors: How much do you invest in stocks/bonds?

[Rob Brown]

I've been a real estate investor and broker since I was 19 years old I'm 38 now. Ive always had 95% ++ of my investable assets in real estate... mostly residential real estate, apartments, and shopping centers. I never really had any stocks/bonds or much cash but after living through the 2008 crash in Vegas and San Diego I committed to having a lot more liquidity at all times going forward. I've recently starting maxing out my HSA, solo 401k, and investing on top of that a few grand a month in an intelligent advisor robo account at Schwab. I also keep 12 months of net income from my portfolio + brokerage business in cash in my money market and I don't touch it or consider it usable for deals as a safety net. What do other real estate investors think is the perfect mix of what % of your net worth should be in income producing rental houses and apartments (I don't invest in shopping centers anymore...so the risk of negative cash flow for prolonged periods is lower now with just low LTV rental houses and apartments) versus stocks (I invest in low cost SP500 index funds and bond funds only). I'd love to hear what others think is the ideal asset allocation! My current goal is to get to 30% of my net worth in SP500, the robo advisor account and bonds using tax advantaged accounts although I'm currently not even close that 70/30 I think is ideal after doing this for 2.5 years.