$Direxion Daily Semiconductor Bull 3x Shares ETF (SOXL.US)$ ...

23.5 low just under 32 high

8.5 points

the average reversion is about 50%

32-4.5

27.5

it's not an exact science but it's a pretty safe way to look at the market when you have a very quick movement in a stock/etf and wear profit taking will come back down to find support.