How Smaller Businesses can Compete when Market Leaders Consolidate? In the same month that EMC and Dell discussed the largest tech merger in history, #2 pharmacy Walgreens declared its intent to buy #3 pharmacy Rite Aid, further consolidating another key consumer sector. And of course, this week, AB InBev reached a deal to acquire SABMiller for $107B, resulting in a global conglomerate with approximately $64B in revenues.