Size matters. Especially if small. This has proved true for small and medium-sized US companies, after the election of Donald Trump at the White House. The Russell 2000 index, which represents small and medium enterprises has indeed gained about 10% in the first 10 days following the presidential elections. A trend that could continue, analysts say, because small-medium enterprises would be less subject to risks than larger companies whether the Trump economic policy would point to a high protectionism. Among the titles that showed greater gains in this period there are also pharmaceuticals: PTC Therapeutics (+ 141%), Ocular Therapeutics (+ 108%), Asterias Biotherapeutics (+ 82%).