The DOGE rally started with the AuxPoW announcement. It was in a very severe bear market where it lost over 95% of its value, and then finally broke the downtrend.
I actually made two DOGE trades this month that allowed me to get some more BTSX. I bought it at 40 when it first broke the downtrend line, and rode it from 40 to 90, then bought again at 63 and sold this morning at 110. I found DOGE to be REALLY easy to trade, because its community is so inexperienced at trading. They are so predictable! I might have sold too early at 110, but I wanted to make sure I could get as much BTSX as possible, because it looks like it might have begun moving up again.
Everyone is saying now that DOGE is rallying because of paypal news, but I think that really it is rallying because it broke its eternal downtrend, and it is getting close to the end of its hyperinflation period. Pretty soon DOGE is going to have less inflation than Bitcoin! (Until bitcoin halves again).