During all technology bubble manias, the semiconductor industry is the first one to go up. As you can see from the above chart, during the dot.com bubble the semiconductor industry went all the way up, until its grand fall where it lost about 89% of its value.
As history repeats itself, in 2018, the semiconductor industry went all the way up and is now showing serious signs of collapse.
I use the Stochastic RSI
indicator ( Stoch RSI
) for all my entry and exit positions when I trade the Direxion Daily Semicondct Bear 3X ETF
) which is an inverse ETF