Scalping

What Is Scalping?

Scalping is the fastest form of active trading, where traders aim to profit from very small price movements and hold positions for seconds to minutes. Scalpers execute a high volume of trades throughout the day, accepting tiny profits on each trade that accumulate into meaningful daily returns. The strategy relies on high win rates, fast execution, and tight risk management.

A scalper might target just a few cents per share on each trade, but by trading large share sizes and executing dozens or hundreds of trades, these small gains add up. The approach treats trading as a volume business rather than a big-swing business.

How Scalping Works

Order flow reading is a core skill. Scalpers study the order book (Level 2 data) and time and sales prints to detect short-term supply/demand imbalances. If they see large buy orders stacking at a price level, they may quickly buy ahead of that demand, looking to sell a few cents higher as the buying pushes price up.

Speed of execution is critical. Scalpers use direct market access (DMA) brokers and low-latency platforms to ensure their orders reach the exchange as quickly as possible. Even fractions of a second matter when holding periods are measured in seconds.

Tight stops limit risk on each trade. Because the profit target is small, the stop loss must be even smaller to maintain a favorable risk-reward ratio. A typical scalp might target $0.10 profit with a $0.05 stop loss. This asymmetry, combined with a high win rate, drives profitability.

Requirements and Challenges

Scalping demands exceptional focus and the fastest possible technology stack. The trader must process information and make decisions in real time, often under pressure. Mental fatigue is a significant factor; many scalpers limit their active trading to specific market hours (like the first two hours after the open) when volume and volatility are highest.

Transaction costs, including commissions and the bid-ask spread, are the scalper's primary enemy. Even commission-free platforms have implicit costs through payment for order flow and execution quality. A scalper who pays $0.02 per share in spread costs on each round trip must overcome that cost before reaching profitability.