GER30 on H1 at 2017.06.09 10:00. The chart shows: that the fast average crossed below the medium average. This sign of short term momentum changing from up to down acts as a possible first sign of trend change from up to down, particlularly if there is an angular ‘elbow joint’ showing on the short term moving average, a classical reversal candle has formed pointing the price action downwards potentially. Check whether it has appeared off a likely strong resistance, e.g. the top bollinger band, the top of a range, or a tested and re-tested resistance level. Consider that the market might retrace the reversal candle up to the 40%, 50% or 60% levels and the possibility therefore of a pending order with a stop above the hig (potential short). these signals firing off at the same time. Check the strength of the move, whether there has been a turn on strong resistance, a candlestick pattern, or test/restest off the top bollinger band or 20SMA and consider selling.
The chart is attached.