It is usually said and seen when $BTC goes up $LTC goes up, even Btc is stable litecoin moves, since last couple weeks BTC is moving good, going up hit 5950$ on the contrary litecoin didn't even cross 0.0143 btc, while in the month of April when BTC came up from 3200$ level, LTC hit 0.018 btc
Even on 3rd May BTC went above 5600$ level LTC jumped to 0.01413 btc and then BTC dumped hard to 5600$ from 5900$ LTC also dropped from 0.014 to 0.0131 btc
Sometimes when you think it will move up with BTC, it deceives but at the moment you sell them, it goes up :)