On Tuesday, the upward momentum in semiconductor equipment and materials stocks continued. At the time of writing, Amkor Technology (AMKR.US) was up more than 6%, after having surged over 6% earlier in the session. Lam Research (LRCX.US) gained over 4.7%, Applied Materials (AMAT.US) rose 3%, and ASML (ASML.US) advanced more than 1%, with the latter two simultaneously reaching new all-time highs.