The graph above shows the stock price of four technology companies between 2011 and 2016 Summarise the information by selecting and reporting the main features and make comparisons where relevant

The line graph displays the stock values of four different high-tech
corporations from 2011 to 2016.
Overall, Facebook’s value steadily increased, while Yahoo’s decreased. Apple’s
stock price fluctuated wildly throughout the period and Google’s stayed
relatively unchanged.
Facebook started the period with a stock market valuation of approximately
7,500 and this consistently moved up in value year on year to reach a peak of
around 20,000 in 2016. Yahoo began the recorded period with a very similar
value to Facebook, but in contrast, its stock devalued every year, until it
reached a low of about 2,500 in 2016.
Apple stock was valued at just below 5,000 in 2011 and this jumped
dramatically to nearly 35,000 the following year, before plummeting to
around 7,000 in 2013. It recovered slightly in 2014 to around 12,000 and
subsequently fell to a price of just over 5,000 in 2016. Google’s shares
remained at around 1,000 for the entire period.