This job is easy.....
Basically, look at this screenshot:
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I have 25 similar screenshots (but have line graph instead) without the "Alert Sent Out Here " text.....On my screenshots, at lowest point in graph you'll need to write "Buy Alert Sent Out" and at highest point you need to write "Sell Alert Sent Out"
Simple as that
11 freelancers are bidding on average $49 for this job
I can easily do this for you for a reasonable price, in the time you have allocated. This job will be an easy task which I would be glad to do for you.