What do the bullish and bearish buttons do?

Each time you create a message, you can let users know if you think something is positive (bullish) or something is negative (bearish). Click the ‘Bullish’ or ‘Bearish’ tag before submitting your message.

Example:

This will display next to your post on the streams, letting other investors know your viewpoint at a glance. This will also factor into the sentiment of each Ticker stream.