Institutional investors might not dump their coins but it doesn't mean we are going to go up. There are tons of events that can happen. Look what happened yesterday over $10B in over leverage longs. We touched $51K however look at how many people are holding profits in the $30-51K range, if we keep dipping we can quickly take out more people, even the low leverage and spot traders. If there is fear the markets might have a fast down trend.
There are also other issues such as what will happen when MtGox coins are released. There is going to be massive supply hitting the market because people are going to want to at least take partial profits since they were hodling since $1000 or so. This is another event that might start the bear market.