FTSE 100

With volume starting to fade ahead of Friday's holiday, and geopolitical concerns growing as a US aircraft carrier approaches North Korean, S&P futures pointed to a slightly lower open, in line with stock markets in Europe and Asia. Safe havens such as gold and treasuries strengthened along with Japanese yen, which erased all of yesterday's losses and neared its 110 support on investor caution about global security risks and the future of U.S. interest rates after Yellen's Monday speech failed to provide clarity.

S&P futures are little changed at 6am ET, trading at 2347.55 and paring an earlier 0.4 percent drop, on the back of the USDJPY ramp which for the second day in a row has emerged alongside the European open, just as the key 110 support level appears in danger, soothing concerns about the Fed's balance sheet reduction and "some" Fed officials warning that stocks have gotten expensive.

European stocks rebounded after a downbeat start, aided by a return to the post-Euro open momentum ignition in the USDJPY while Asian stocks rose after China shares surged 1.5%, the most since August. For now S&P futures are fractionally in the red, although we expect them to turn progressively higher as US traders get to their desks to frontrun the now traditional "post open" ramp.

Stocks fell worldwide on the last day of the quarter, with US equity futures pointing to a lower open even as the S&P is set for its best quarter since 2015 amid persistent economic and political uncertainty.

One day after UK PM Theresa May officially unleashed the Article 50 letter proclaiming the beginning of the end of Britain within the EU, the UK stock market had rallied over 16% since the vote that elites said would bring armageddon. However, remove the support of a collapsed currency and things look very different for a US dollar investor.

The UK's FTSE 100 - whose megacap members get the majority of their revenue from outside the UK - looks very different when adjusted for the depreciation of the pound.