Web Applications Stack Exchange is a question and answer site for power users of web applications. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

As you can see on https://twitter.com/powtac/status/277190821479063552, strings with four letters starting with an $ are marked as a Tag on twitter. But what kind of tags are those $TAGS?

enter image description here

share|improve this question
Completely off topic: there is a "dollar tag sign" UTF-8 symbol: fileformat.info/info/unicode/char/e0024/index.htm – powtac Dec 7 '12 at 23:27
up vote 12 down vote accepted

That's part of the stock exchange search feature. Or "cashtags".

When you include a dollar sign followed by the stock ID it will take you to a search page that shows you related Tweets about the company for that ticker symbol.

Now you can click on ticker symbols like $GE on http://twitter.com to see search results about stocks and companies


Since there are a lot of the stock exchange identifiers with four characters, that's why you're seeing it appear auto-linked in your Tweets.

Normal currency and dollar amounts don't contain letters like that in that position and is also why that convention was adopted by Twitter.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.