Several things. I need to make a clear, definitive contrast between a MACRO trade trend reversal opportunity, a trend reversal opportunity and a breakout opportunity.
1) A MACRO trade trend reversal is when all of the information I used on the major markets have aligned to signal a confident entry in the face of the existing trend (bull or bear). There are 1-3 of these on average a year. We are on pace for 4-6 this year, which is not surprising given the election year and economic chaos. I trade 90% of my capital at these moments. (DISCLAIMER - All 90% doesn't go in at the same time. It's extremely strategic and HEAVILY leveraged with options.)
2) A trend reversal opportunity is when a single stock signals it's bottom (buy) or it's top (sell/short). Right now this is where most people should be investing their time, mainly on beaten down stocks, that have lagged the macro breakout.
3) Finally, a breakout opportunity is when a stock has reached a resistance level DURING A TREND MOVE and is on watch for a further breakout.
I take the time to write this because it's important that you don't confuse a post about a simple breakout move versus a trend reversal.
Having established these definitions I'll try to respond to klsmith's question on TWTR. TWTR trend reversal was in the $14's when posted. Everything after that, including today, would fall under #3. So the question you are asking is how long will the trend continue, and maybe even should I enter now? I think TWTR will achieve a monetization model. One of my very first posts on this board was on FB (actually it started on the Football board in reply to someone asking "if you were given $25k today where would you invest it?", to which I posted "put it all in FB") FB had similar issues but I had studied the model intensely and saw what the leadership was implementing. I see the new leadership (that have come in over the last 2 quarters) making excellent decisions, to do the same.
Really pay attention to how stocks react to the "bozo" analsysts for underlying support for a stock. In the last week we had two analyst bad mouth TWTR. One of them sent the stock down $0.60 cents the day after hitting new trend highs. It bounced right back up above $18. I want you to see when that happens and realize what that is telling you. That one move on a stock is more valuable than any book you can read. It tells you that only the weak got shaken out of the stock because they don't know what the heck they own it for. So yes, I see TWTR moving higher on a trend. IF it meets your objectives in higher reward with some more risk than some industrial stock then I'd look for any pullback as an entry point.