It has to do with everything and not only the tech. Higher interest rates will make cost of borrowing higher to the companies and will eat away from their profit. All things said, the situation right now is that market is overbought and needs a reason to sell and take profit. Reason does not matter and may not be 100% related.Can someone explain to me what 10 year yield has to do with tech? I trade futures and invest long term, so do not follow tech day to day fluctuations.