Today I bought more $MU $YHOO $VALE $NBL $TWTR $AXP $ZNGA https://t.co/Vt6T5Zp2is
### Instruction: What is the sentiment of this news? Please choose an answer from {negative/neutral/positive}
### Input: Today I bought more $MU $YHOO $VALE $NBL $TWTR $AXP $ZNGA https://t.co/Vt6T5Zp2is
### Response: positive