Longer cycles are the Juglar cycle (about 7 years). Two Kitchin cycles make up a Juglar cycle (40-42 months, 3 1/2 years or 900 days). The Kitchin cycle divides into 3 cycles ( called 1/3 Kitchin cycles of about 13 1/2 to 14 months or abour 300 days). A 1/3 Kitchin cycle is composed of 3 Wall (4 1/2 months or about 100 days) . This is where I normally start in my shorter swing trade analysis....
NOTE: Juglar and Kitchin are people's names (Google them for more info)
Picture the above information:
As you can see we have multiple longer term cycles at up after the 1/3 Kitchin recent bottom. TSI is at extreme highs (in the past this has been sell points). If you are a longer term investor WAIT for a considerable pullback to invest (raise some cash now so you have some dry powder.).