Let's see why investors are hitting the sell button this morning. You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources , and more. Learn More The Cochlear Ltd (ASX: COH) share price is sinking on Friday morning. At the time of writing, the hearing implant leader's shares are down 10% to $274.95. This follows the release of its half year results. Cochlear share price sinks on results day Sales revenue increased 5% (6%...