Correlation amongst assets is the degree to which they move in tandem.
Diversification is a technique for reducing risk. Most people tend to think this is achieved simply by investing in a variety of assets instead of just a few. This is wrong.
Proper diversification is achieved when you reduce the correlation between the assets in your portfolio.
0.5 to 1.0: Strong positive correlation
Around 0: Little to no correlation
-0.5 to -1.0: Strong negative correlation
Took a few hours to build this one. Later I will add an index for crypto (large cap) and I'll play around with different ways of presenting the data.
If you have any requests or ideas please shoot