Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Day 0 is the day of the EAs. Dashed lines denote market open (9:30 a.m. US/Eastern) and solid lines denote market close (4:00 p.m. US/Eastern). Solid lines also delimit days for aggregation of tweets at the daily resolution. Error bars denote one standard error.
