Thanks for the reply. ^GSPC is the price return rather than the total return with dividends reinvested, which is ^PXTY. The trouble is that ^PXTY doesn't have any historical data on Yahoo Finance. If you want to see the spectacular difference over the long haul, look at the first chart...
Can't find a forum where this thread will fit, so here goes: I can get daily data from Yahoo for a few days with the ^PXTY ticker, but not years of daily historical data. Morningstar only has year-to-date, not calendar year. I don't belong to Bloomberg, so I can't go anywhere with...