yes it is, I never really actually notice the difference between the chart provided by my broker and some free chart until it happened to me.
if you based your trading decision on chart and on support/resistance break out then this could be the case. one hour chart.
here it goes, I was so confident, so so so confident that upon a break of my resistance the price will rally upward, so i put my buy order in just above my resistance, and as it unfolded, the price went through my resistance with a solid long bar and then price moved downward and close below resistance.
Made me wonder whats went wrong??? until i accidently stumbled across -fxtrek chart (where u can find through dailyfx com) - free with limited access-
here i found the price did not cross my resistance, so i opened another 2 broker demo and checked their chart which seems to be the same like my broker chart but also showed some quite differences.
my conclusion , based on some experience i had especially ‘break out’ is that the free chart gave me more accuracy but too bad it has limited access and you cannot move the chart forward…
cheeriooo