Markets have been rallying for the past 2 weeks

As you can see, global markets have been on a bull run since Feb lows and rallying on any bad news too!

While waiting for my US brokerage account to be opened, I am looking into ETFs in the US market. Why? Firstly, markets have been battered for the past 2 years and ETFs are very attractive especially for Dow and S&P 500. I am looking into these 2 for ETFs:

1. SPDR S&P 500 ETF (SPY)
2. DIAMONDS Trust, Series 1

More likely, I am more interested in the S&P 500 ETF as it sets as a benchmark to match against stock performance.