Weights of SP500 Constituents

Hi,

Where should I look to find the weights of the SP500 constituents.

Thanks in advance.

 

Does this help?

https://www.spdrs.com/site-content/csv/SPY_All_Holdings.csv

 

Thanks very much. This is exactly what I was looking for.

 

I was wondering if it is possible to get historical weights as well for the constituents going back to last 2-3 years. Thanks!