Dollar index USDX) range getting more confined

The dollar is not exactly outperforming its peers so far this week.  Of course that does not apply to the USD/JPY, as that is still in a world of its own. Beyond that pairing, the broad measure of the dollar is well defined by the price action in the USD index (USDX). The most recent price action there has seen the index hold above its 100 day moving average (now in place at 104.78) but since Friday mostly below its 50 day moving average (now in place at 105.08) It did just pop above that level a little earlier this morning, but convincingly so yet. The high seen was set at 105.098. That 50 day moving average is falling slightly and the 100 day is levelling out which is not exactly positive, but also not at all conclusive yet. The main event for today is not about US data. We do have one release which can sometimes have an impact a little later and that is at 10am GMT- the US NFIB small business optimism index (last at 90.5 and forecast to be at 90.2 in June). However the most likely thing to shift the dollar this afternoon is the Fed boss, Jerome Powell testifying in front of the Senate Banking committee at 2pm GMT and that is the main risk event for the US currency today. Meantime the USD index is holding in between those two levels just mentioned, currently trading around 105.06