I'm getting ready to get into my employer's 401k and am considering the Putnum S&P 500 index fund. I've been looking for about an hour to find out it's ticker symbol so I can look at how it's been doing. No such thing. After going the literature with my plan I came across an 800 # for Putnum and gave it a call. They tell me it's not listed and that it's all done internally. I asked how, then, do I go about finding what it has traded at for a particular day. She said to look at the S&P and that will tell you (what an idiot). I told her that I was looking at the online prospectus and it's traded anywhere from 1/4 points to 4 points below the S&P in the past. This fund does not track the S&P exactly, I told her. I then asked, tomorrow, how do I find out the price during the middle of the day. She said I'd need to call.
That sounds ridiculous. So, my question is (fully aware that I can't get specific investment advice): Is this something I should be concerned about and maybe look for something listed? Are internally traded funds secure? The whole thing seems odd to me. Any insight to understand this would be appreciated.

-James