Forget scaling. The market trades on decimals. Scalping was profitable in the 1990s when online trading was started.
Fractions in the 90;s had huge spreads. You could scalp between the bid and ask and make money. With penny spreads that is impossible. PLUS 80% of the market activity is OFF the public exchanges and you can’t see that activity on your Level 2 screen. So when you try to scalp BLAM you get whacked.
Loss after loss after loss. Scalping was HARD in the 90s with a huge spread between the Bid and Ask. Now it is IMPOSSIBLY hard.
Intraday is basically scalping by another name.
Swing trading is the holding of a stock poised to move with momentum a pre-calculated and pre- determined point gain potential based on short term trends, indicators, buy entry candlestick signals and risk to profit ratios of at least 4/1 or higher. The hold time is a few days to several days. Risk is substantially lower than intraday scalping.