https://finance.yahoo.com/
S&P 500 is far more representative of the U.S. stocks that stock holders own, on average, since it is about 85% of the total U.S. stock market, capitalization weighted (i.e. weighted by the total value of their shares).
The +5.54% is phenominal. Yesterday the S&P 500 was still in bear market territory (more than 20% down from its Jan 3 all time high).
With today's close, it is down 17.5% from the all time high, no longer in bear territory, although technically a bear market lasts from when it began (January 3) to when it reaches a new all time high.
It's also nice that, at 3,956, it is only a little over one percent away from 4,000 again.
Also of note, the Treasury 10 year note's yield dropped 0.322 percentage points to 3.8290%, a 7.76% drop. That's good for mortgage rates, which usually follow closely. It's also an eye-popping change, in and of itself. Oh, and when the yield drops, the value of one's bonds goes up.
Symbol ### Yield ### Change ### %Change
^TNX Treasury Yield 10 Years ### 3.8290 ### -0.3220 ### -7.76%
^FVX Treasury Yield 5 Years ### 3.9430 ### ### -0.3420 ### -7.98%