Everything goes up in tandem. Even similar names will go up, just because of speculative game theory. In this case the tech is similar, and of course Stellar is to Ripple something like what NEM was to NXT - more transparent and with better distribution.
Seems like we already missed most of it if we missed it by now, but who knows? In any case, watch out for the next thing. Might be us, might be Darkcoin, might be NXT. If it is us, then we might see all out clones go up. If it is Darkcoin, we might see all anoncoins go up. If it is NXT we might see their assets and clones go up.
That's just how this space works. And when it is our time, we are ready for it!