 Overview: There is nervous calm in the capital markets today. The weakness of US shares yesterday is taking a toll today. An exception in the Asia Pacific region is the Hang Seng and the index of mainland shares that trade there, which up around 3.5 today on thUe easing of some Covid protocols. Europes Stoxx 600 is off for a fifth day, its longest losing streak in nearly two months. US futures are posting minor gains. Benchmark 10-year yields are mostly little changed. The exceptions are It... 