Can use coingecko, coinmarketcap and similar websites that show % of movement up and down then you go to the chart and see nothing happening, 80% of the time are just some shitty consolidations so you have to wait an hour or so for trend to develop.
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The sites you mentioned can absolutely not be relied on regardind the data you talked about and I would never make my trades on data from Coingecko or Coinmarketcap.
Why? The data on such sites are usually calculated, so they are not correct for the individual exchanges where you want to execute the trade. In addition, the data is not updated within seconds, but sometimes actually lags behind for several hours. Thus, these data are completely useless as indicators.
I usually use directly the data of the exchange on which I want to trade. It is also very easy to use bots to give personal signals such as ("Volume on BTC is increasing by leaps and bounds") and then react immediately, the exchanges also offer interfaces to be able to access this data yourself. The data is usually also very reliable and quite suitable as a trading signal.
Or simply it was the average of those all exchangers who had been trading up a particular coin ex. Bitcoin. Then its true that it isnt really just basing up on a single exchange on which those movements would really be that
calculated and this is why % movement whether up or down would really be not precise. It would be better on sticking on the platform you are trading or tend to trade or make use of rather than on making yourself trying out to reference with those common marketcap sites which shows that in overall average and not on a single point. So its never been recommendable for you to make use if you are really that trying to snip out
with those small percentage movements. Better be specific and would really be directly touching up the platform on which you do tend to use.
CMC and CG are really just that good on peaking about price movements but in speaking about making it as a signal or indication then it wont really be able to fit out on the criteria.