Full Study: http://edgerankchecker.com/blog/2013/12/the-unofficial-official-study-of-reach-since-december-2nd/ September’s Reach was approximately 12.6%. In the week before the change, we were seeing Reach of about 9.5%. After the change, we’re seeing Reach of about 7.7% (a -19% change). So in the short term, we’re seeing a -19% change but from September to December, we saw a loss of -39%. The graph below shows that Reach fell from ~9.5% to about ~7.7%. Surprisingly, we did not see a drastic day in which a change was implemented—although many Admins reported seeing changes around 12/3.

1. The Unofficial
Official Study
of Reach
Since News Feed Changes
in November 2013

2. Reach Change Overview
September Reach : 12.6%
November Reach : 9.5%
After December 2nd : 7.7%

6. Reach Difference
Before and After Dec 2, 2013
Engagement per Fan : 0.29% to 0.26%
Engagement per Fan for Links : 0.12% to 0.11%
Engagement Rate All Content : 3.49% to 3.86%
Engagement Rate for Links : 1.5% to 1.9%
Clicks per Person Reached : 0.71% to 0.85%
Clicks per Fan : 0.06% to 0.05%

7. Reach Difference
Before and After Dec 2, 2013
From Facebook’s perspective, this is essentially a
“win.” They were able to maintain roughly the same
level of engagement while reducing the overall
people Reached in the news feed.
This frees up room for Facebook to make “quality”
decisions, while also clearing up space for ads.

10. Organic Reach for Pages
has decreased.
Three out of four Pages were negatively
impacted by the change, and some of these
Pages were decimated. The competition to get
into the news feed continues to rise.
Pages that have unique content that drive
engagement and clicks from the average
Facebook user continue to prosper.

11. How Did We Study The Data?
We examined over 30,000 posts over 11/25-12/9
from approximately 1,000 Pages
General Metrics : Page data averages
Aggregate Data : Page data median
“Per fan” data : The metric divided by the number
of fans for that Page on the day of posting