Asian markets wavered Tuesday, with tech stocks leading losses as investors tracked easing oil prices and cautious optimism over a potential US-Iran deal.South Korea's Kospi slid by more than 3.0 percent, as tech stocks lost ground tracking an overnight slump on Wall Street.But it was the energy markets that drew attention after US President Donald Trump signalled "serious negotiations" with Tehran and called off planned strikes, boosting optimism that tensions could reduce.

US President Trump warned that the clock is ticking for Iran.

Trump told Axios "the clock is ticking" for Iran and warned if the regime doesn't make a better deal "they are going to get hit much harder."

Tech Declines Pressure Nasdaq, S&P 500

Oil prices have fallen and Asian stock markets have risen. President Donald Trump has paused military strikes, sparking hopes for a deal to end the conflict. This development…