Today's VFFSX price change hasn't been updated, so anywhere you're looking at VFFSX's price change, over any period of time that you might think should include today, it does not reflect what happened today.
What happens when you add (not exactly how it works but close enough) today's +1.42% to the 1yr -11.05%?
Werewolfdad t1_j6p75w5 wrote
Mutual fund prices don’t update until 6pm
So you didn’t wait long enough to check