September 1st update: The Market Strength Index of S&P and NASDAQ Indexes
The long-term view of the S&P and NASDAQ Indexes’ Market Strength Index

The short-term view of the S&P and NASDAQ Indexes’ Market Strength Index


From the above charts and the table we can conclude the following:
The MSI of NASDAQ, SP400 & SP600 Indexes is going up, but the MSI of SP500 and SP100 is going down.
The Indexes with the highest MSI are: The NASDAQ, the S&P400 and the S&P600