Putting money in Index Fund or keep in savings account

[Tate Meyhoff]

My wife and I are really excited to get going on our REI journey, with one problem. We currently have enough liquid cash to purchase and rehab one investment property using conventional financing. We would like to scale relatively quickly. I am tired of having our chunk of money sitting in a savings account that earns hardly any interest. Do any of you folks park your cash in Index Funds to try an maximize any gains? I know there are risks involved with the stock market, but traditionally S&P index funds are a very safe investment. I also know that any gains will have tax implications, which I am ok with knowing my money is actually growing. Anyways, just looking for any advice or first hand knowledge of any of you out there using this strategy over they typical savings accounts.

Thanks,

Tate