Am a newbie UK based trader on a small 2k testing account with triple screen setup, assessing the performance of 8 different trading systems (mostly US stock) which cover the range of algo assisted, statistics, expert advice, copy, long med and intraday scalps. With the aim over the next year to find the best assortment which work for a lofty goal of attaining 20 % month upward, average round the year. While on etoro this Monday or Tuesday using tradingview pro with 1 second updates there was incredibly fast updates on the stock activity of the now infamous Hertz (see video). I had my stock screener setup to survey the USA market for fastest changing stocks, and removed the indicators for ease of viewing. Nothing else except the indices were updating this smoothly and quickly. See video here, after two more 3 hour sessions of this, my account balance was up from $1930 to $2430… then the chart activity slowed down, couldn’t get jump on the broker and stopped with balance at $2300. Its just a simple beginners strategy of waiting for the up or down trend, then jumping on it so that if it went the other way fast, getting the right jump in would pay for the spread and set me to zero or negligible cost if I had to exit on reversal. This was all in the seconds timeframe, exiting after minutes. The test worked repeatedly and was able to set myself in for long or short opportunities. It seemed like the trading activity on Hertz was so frenetic (or whatever caused the fast update) the info from trading view provided 0.5 to 1 seconds jump on Etoros broker update (including my close response), so you could exit before their systems updated the price. Did about 100 more of these Hertz stock scalps and netted 25% on my entire trading account over two 2 hour sessions, using on average half my balance, so in Hertz % terms must have been about 50%. Then yesterday the activity slowed down and I couldn’t get a jump on what was happening. Except when the fed announced OK news for the economy, the Herz activity jumped again for minutes and you could see in real time for a while till it slowed down and I lost about 10% of the 50% gain I had till realized it was done, so stopped trading. Great, my first successful trading scalping experience having broken even for months. But it seems like a one off due to unprecedented day market activity in combination with some type of faster updates to Hertz price for reasons I don’t understand. Never came across this before or since, but am newbie… so this is what I want to ask. First, is this a rare, or possibly new scenario due to more people jumping in the market at home ? Or its not and traders here have setups which allow this kind of half a second jump on brokers insight on a regular weekly basis, if so what is employed ? In terms of the following. The trading software The data feed or anything else Finding slow brokers ? And filtering the stocks to find which send in data so quickly.