To sell or not to sell?

Recent acquisition Northern Star Resources [NST] in the ASX 200 portfolio is a great example of the conundrum faced by long-term investors when a new stock leaps out of the starting blocks. Profit-taking is evident from the tall shadows/wicks early in the week and in the decline of 21-day Twiggs Money Flow. Medium-term selling pressure suggests the stock is likely to retrace and give back some of the gains of the last two weeks. The temptation must be great to sell the stock and lock in profits of close to 30 percent.

NST

It is important, however, to stick to the plan. We are investing for a longer time frame in anticipation of much larger gains. There is no guarantee that any individual stock, including NST, will deliver. But I can guarantee you that they will not deliver long-term gains if you sell within the first few weeks.

Investors in S&P 500 stock Micron Technology [MU] faced a similar conundrum in July 2013. The stock had put in a good run from $9.00 before encountering profit-taking as it approached $15.00. 21-Day Twiggs Money Flow retreated below zero and the stock fell back to $12.50. Many investors would have taken this as a sign to get out.

MU July 2013

With hindsight, the decision to stay the course looks easy: support held at $12.50 and MU is now trading at $33.00. But I am sure that there were many investors who forgot their original plan and took profits at $12.50.

MU 2013/2014

….They just aren’t bragging about it.