This is why I hate talking to the lower educated people of the world. Your statement proved that having a discussion with you is worthless. Your quote as followed " McDonald's owned the market share for fast food".
Listen You non educated moron, McDonald's still owns the biggest market share amongst fast food companies. As of 2015. As of right now McDonald's market share are as followed ( Terms are in the millions. Do I have to elaborate more for you dumbass?)
1) McDonald's - 81,621
2) Starbucks- 29,313
3) Subway- 22,561
4)KFC ( Part of Yum Brand)-13,649
5)Chipotle-10,645
6)Pizza Hut- 8,511
7)Tim Hortons-4,590
8)Domino's-3,750
9)Burger King- 3,169
10)Panera Bread-2,966
Now dumbass, what I think you were trying to say ( But you're not too bright, so I could be wrong), was that McDonald's lost its share in overall amount of restaurants; Because that's the only respectable alternative to your dumb post.
That happened 5 years ago you low-educated fool ( Not 20 dumbass); and in 2011 it was to Subway. Again you're a low intelligent human being so I don't know, what goes on in that little brain of yours.
See this is why I don't like talking to the non-educated, it's a complete waste of my time. And if you did go to school, you should demand a refund because it was clearly a waste of time money and resources ( feel bad for the person slot you might have took).
The nerve of you Talking Shyt with no facts. But hey that's the Thing lower educated people do. So I shouldn't be surprised. But in this world I guess there's the educated and the not so educated. It's a sad reality! Don't ever insult my intelligence again; Because clearly you're not built for it. Man the nerve of the low educated! Ugh! EWWW! You disgust me!
Even though it maybe too complicated for your little tiny and non respectable intelligence. Try looking up the sources

if you think you can handle it. I know my post maybe too much for your little mind anyway. But hang in there dumbass you can do it. Maybe?! Clearly you struggle to look up facts. Don't hurt yourself dumbass!
Sources
1)
Most valuable fast food brands worldwide 2015 | Statistic
2)
Subway Runs Past McDonald's Chain

Please don't stress yourself!