Big tech companies as weight, naturally guides the main fluctuations of the $NASDAQ(.IXIC)$ April 7 opening by the "small essay" impact of the $NASDAQ 100(NDX)$ appearedBurst pull, but the second half of the transaction between the long and short sides are evenly matched, relatively "balanced", mainly because of the two days of tariff impact seems to be undecided.At present, both the long and short sides of the two main lines of logic in each other's influence:Downward pressure on performance (favorable).Mainly supply chain cost surge, profit compression (competitiveness decline), of which the supply chain transfer is not only costly, long cycle, but also face future policy changes again.May become an "ex