Spreads are bonuses as well as costs - Stock Markets operate on a bid and ask based system. The numerical difference between the bid and ask prices is referred to as the spread between them. The ask prices are immediate execution (market) prices for quick buyers (ask takers); bid prices for quick sellers (bid takers). If a trade is executed at market prices, closing that trade immediately without queuing would not get you back the amount paid because of the bid/ask difference. The spread can be viewed as trading bonuses or costs according to different parties and different strategies. On one hand, traders who do NOT wish to queue their order, instead paying the market price, pay the spreads (costs). On the other hand, traders who wish to queue and wait for execution receive the spreads (bonuses). Some day trading strategies attempt to capture the spread as additional, or even the only, profits for successful trades.
Of course, you still have to factor in losses. Smaller gains can only produce growth in your portfolio if losses are kept small. Rather than the normal 7% to 8% stop loss, take losses quicker at a maximum of 2% to 3%. This will keep you at a 3-to-1 profit-to-loss ratio, a sound portfolio management rule for success. It's a critical component of the whole system since an outsized loss can quickly wipe away a lot of progress made with smaller gains.

Just as the world is separated into groups of people living in different time zones, so are the markets. If you start trading on the Cac 40 at 11:00 ET, you might find you’ve missed the best entry signals of the day already, minimising your potential end of day profit. So, if you want to be at the top, you may have to seriously adjust your working hours.

Before day trading, if someone wanted to trade a stock, they needed to call a stock broker to place their order, who would then route the order through a specialist on the floor of the exchange. The specialist would match the buyer with a seller and write up a physical ticket that would transfer the stock and send that confirmation back to both brokers. Commissions were charged at a flat rate of 1% of the total amount of the trade. That means that to buy $10,000 worth of stock, it would cost you an additional $100 in commissions. In 1975, the SEC (Securities and Exchange Commission) made fixed commission rates illegal opening up the markets to the first of the discount brokers competing for business by lowering their commissions and making short term trading much more profitable.
The tick volume is measured by how much the price is has ticked “up” or “down” in that particular candle bar. So the more people are getting in at the time, the longer the volume line will become. This is because there will be more movement in price action with all of those entry orders flying in. So it makes sense that the volume indicator is, first of all, very accurate, and second has no real lag to it. It is currently showing you what the price action is doing the number of “ticks” on that candle bar. This results in the bar looking like this:

Day trading is the act of buying and selling a financial instrument within the same day or even multiple times over the course of a day. Taking advantage of small price moves can be a lucrative game—if it is played correctly. But it can be a dangerous game for newbies or anyone who doesn't adhere to a well-thought-out strategy. What's more, not all brokers are suited for the high volume of trades made by day traders. Some brokers, however, are designed with the day trader in mind. You can check out our list of the best brokers for day trading to see which brokers best accommodate those who would like to day trade.