True, cut right off tsp.gov- and actually the S is closer to 4.5% as far as I can figure- however my point was more to the fact that for the last 10 years in "buy and hold" terms, where you aren't watching the market like a hawk, your return in the highest risk/reward vehicle barely (if even really) would have got you what the G fund did.
I think this became symptomatic of the boom or bust mentality when the dot.com era spawned widespread trading, which continues in enhanced form today, with little regard to actual data or justification of market valuation.
I have about 10 years of contributions left, and if it were to continue at this rate, without constant attention, even hedged as much in TSP possiblities, I might just keep ahead of inflation. Therefore to essentially gamble on market dynamics during a period of uncertain direction and marginal fundementals in the big picture of the world economy makes me suspicious of the mentality, in this case the institutional traders with reams of data at their disposal, able to manipulate the markets at will, as evidenced by Banks' recent string of profitable trading days.
Call me dated, but I prefer to see more than 1 qtr of fundamentals and the market in progress, not just to a peak and back as it seems to be doing now.
I think the article about the market getting ahead of the recovery is quite fitting, the 10% unemployed aren't putting any $$ in the system to justify long term growth projections and maintaining housing values where 1/5 are either underwater or deliquent, and for me, that alone is enough to raise a healthy dose of skepticsm for a raging bull market.
I know the housing #s came out today, but there is also this from the 19th-
http://news.yahoo.com/s/ap/20100519/ap_on_bi_ge/us_home_foreclosures
My 2c