MMM -- New Dividend Play

I'm expecting MMM to declare a dividend with an ex-dividend date in the next week or so:

Date	Description	Amount	ROI	aROI	Profit
2018-08-10	Buy MMM @ $201.31	-$201.31
2018-08-10	Sell MMM 8/17 2018 $200.00 Call @ $3.00	$3.00
2018-08-17	If assigned at expiration	$200.00	0.84%	38.26%	$1.69
2018-08-10	Current value	$200.00	0.84%	306.05%	$1.69
2018-08-10	Buy and Hold	$201.83	0.26%	--	$0.52