Excluding CenturyLink, the 11 Largest Louisiana Companies Total Pretax Earnings Dropped Very Sharply By 74% in the 1Q 2020 ..... CenturyLink's 1Q of 2019 Pretax Earnings Was Burdened By a Massive $6.5 Bil Goodwill Impairment Charge.

From a review of Company SEC filings and the Google Finance website, I found 12 Louisiana Companies with stock market caps above $500 mil recently.  

The table below shows the US GAAP Pretax Income (Loss) From Continuing Operations for the first quarter of both 2020 and 2019 for each of these 12 Louisiana Companies.

Column1	Column2	Column3	Column4	Column5
		US	US
		GAAP	GAAP
		Pretax	Pretax
		Income	Income
		(Loss)	(Loss)	Better
		First	First	(Worse)
		Quarter	Quarter	%
Louisiana Largest Companies		2020	2019	Change
Market Caps Above $500 Mil	City HQs	mils $	mils $
CenturyLink	Monroe	433	(6,027)
Entergy Corp	New Orleans	52	301
IBERIABANK	Lafayette	49	130
Lamar Advertising	Baton Rouge	42	53
Amedisys	Baton Rouge	41	42
Pool Corp	Covington	31	32
LHC Group	Lafayette	31	27
AMERISAFE	DeRidder	13	24
Viemed Healthcare	Lafayette	4	2
Origin Bancorp	Ruston	0	17
Globalstar	Covington	(38)	26
H&E Equipment Services	Baton Rouge	(47)	19
Total all 11 Louisiana Cos … No CemturyLink		178	673	-74%