New Year's Day is the January 1 entry in the holiday and early-closings calendar published by NYSE Group. NYSE Group operates the New York Stock Exchange and is a subsidiary of Intercontinental Exchange. The entry shuts all NYSE cash equity, options and bonds markets for the full day, with no trading at all.
The holiday is an operating calendar, not an economic statistic, so it has no level, no rate and no directional signal. A New Year page reading means zero trading only, and it never covers bond-market hours on their separate schedule. It also never applies to New Year's Eve, since December 31 stays a normal full trading day.