imported post
I think the I-fund is too high and will drop. Most of its strength this year has been due to the very weak US dollar. If/when this situation changes, it'll hurt the I fund (as interest rates rise, the dollar should strengthen). However, if the dollar doesn't rebound, I'm sure the I fund will continue to climb - in which case, the only way you can make money off it is to buy the pullbacks and sell after a few up days (which is pretty much what I just did, buying some shares at the end of september and selling after the fund went up into the $13.60-13.70 range).
Both the C and S are about $0.40 off their highs earlier this month. On that basis, I'd say it's a good time to buy them. The C fund is at a critical point right now, though. It hasn't been below $11.70 since the end of August (it last hit $11.70 on the 27th of September but bounced off that). S fund has been more volatile, and it's tougher to spot a critical price level for that fund (looks like $12.73 is its low for the past month or so).