The red line is Bitcoin, and the axis shows percentages. Scrolling through the chart, we can see that Dash reliably follows Bitcoin's price with one major exception: when we entered the big bear market in 2014, after the Mt.Gox pump, Dash had quite a big increase in price (around April - June 2014). We might be in a similar scenario right now: Bitcoin had an intense pump and might need a longer cool off period, now. If history repeats itself, this might be the chance for Dash to go up.
Trend line, as shown, is touched multiple times (happened just recently) and overall uptrend in the higher time frames is still intact. If this scenario plays out, I suggest to #btfd and enjoy the ride.