A 20 year weekly chart of SPX shows very clearly a 7 month period from high to breakdown illustrated by the 200 DMA crossing below the 400 DMA. This is serious long term analysis and wow, May 2015 plus 7 hello January 2016. Same for August 2000 and March 2001 and same for Oct 2007 and May 2008.
I will examine a moving 20 year period but this is notable. When the 200 DMA goes under the 400 DMA, there is a full blown recession every time. Every time.
Support has become resistance and that sets the definition of a declining market.