I am a big fan of the approach described by Richard Schmitt in this book. I am not affiliated with the author, his organization, institution, his friends of his family. I am not promoting his book, however it might look like I do. Some people would just reject it as a scam without even reading the book. Before you reject it, please read it. The book might be available in your local library, so you do not have to buy it.
Now, after carefully reading the book several times, and actually applying it in practice by managing my 401(k) portfolio, I need to say what might not be for everyone. I believe your IQ should be above average, you need to be able to work with spreadsheets, formulas, i.e you need to be mathematically savvy if you want to do it yourself. You might delegate to do the trading to somebody else, but you will miss a lot of fun doing so.
First, let me tell you that this book helped me to understand investing in general and retirement investing in particular. At the beginning, I thought this approach is too good to be true. Beating S&P 500 consistently over several years is not what I've done in the past. So I was kind of skeptical that this might be true. Then I took the S&P 500 historical data starting from 1995 and have done simulations as if I've applied Richard Schmitt's approach to 401K investing. You can find my simulations on the blog site I created (see my profile link). The only period I see where the Schmitt's approach did not work was the period of continuous growth of stocks: from 1995 to 2000. But this was not a period of a "shaky economy" that we are in right now.
Second, I am working with this system every day since the end of 2011. The only difficulty I see for those people who would try this system having only two retirement accounts. Due to 60-90 day redemption fee policy in major investment firms, it will be difficult to do a daily trading when one of the accounts reach its maximum in stocks, for example. You would need to wait to start trading again.
To summarize, 401(k) Day Trading is for those people who want
- to manage 401(k) by on a daily/weekly, or even monthly basis,
- to beat S&P 500 over at least a 5-year period,
- to learn more about retirement accounts, and minimize the fees (thus increase your profit),
- to diversity their retirement savings with risks they can tolerate.
July 2012 Update: Since I am using the system on a daily basis, I now see how you can actually use one retirement account for 401k day trading. There are funds that mimic S&P 500 so those funds could be used for trading as well. As of today, my 401k trading account beats S&P by 1.5-2%. I continue posting the results on my site that you can find in my Amazon's profile.