Pollsters say it is too close to call. Punters favour a Remain result. If the Brits vote to stay in the EU, we should see a considerable spike tomorrow evening into Friday (green triangle), followed by resumption of the upwards slope from a higher spot than present value. A vote to exit will bring a down-spike (red triangle), but this should be followed by a return to present levels, as the pound is under-value. My bet is on Remain..