The earnings docket is in focus amid a slew of megacap reports, with a handful of Dow components stepping into the confessional as well. Caterpillar Inc (NYSE:CAT) and Microsoft Corp (NASDAQ:MSFT) are among them, and as both securities tumble after reporting results, now looks like a good time to check in.Microsoft Stock's Worst Day Since OctoberMSFT is down 6% to trade at $416.03 at last glance, pacing for its fourth daily loss in five and worst day since October, but a floor at $410 looks ready to contain ...