US/ Megacap growth and technology stocks such as Nvidia Corp NVDA.O and Tesla Inc TSLA.O, which came under pressure as yields surged, added 1.4% and 1.8%, respectively. Twitter Inc TWTR.N dipped 0.9% as Tesla Inc TSLA.O chief Elon Musk sent an additional notice to terminate the $44 billion deal to acquire the social media company. The benchmark S&P 500 index .SPX has slumped nearly 4% since Fed Chair Jerome Powell's Jackson Hole speech last week reaffirmed the central bank's determination to raise interest rates to tame inflation despite a slowing economy.