china’s tech stocks headed for a second day of declines as concerns over further regulatory probes into the country’s internet giants and losses in the broader sector dampened sentiment the hang seng tech index fell as much as 28 after tumbling 39 on monday taking declines from a june peak to 12 alibaba group holding ltd was among the biggest drags on the gauge down as much as 61 a regional gauge of tech stocks was down as much as 23