Pomegra Wiki

Day trading

Day trading is a trading strategy of entering and exiting stock or other positions within the same trading day, typically aiming to capture intraday volatility and avoid overnight risk. A day trader does not carry positions overnight, instead liquidating them by market close.

For overnight holding, see swing trading. For longer-term trading, see position trading. For ultra-short-term, see scalping.

How day trading works

A day trader:

  1. Monitors intraday charts throughout the day, looking for setups.
  2. Enters when technical signals align (breakouts, momentum signals, news catalysts).
  3. Manages during the trade, using stop-losses and profit targets.
  4. Exits before market close, eliminating overnight risk.
  5. Repeats with the next setup.

A day trader might enter Apple stock at 10:30 AM at $180, hold for 45 minutes as it rallies to $182, then exit for a $2-per-share gain, repeating this cycle 5–10 times daily.

Why day traders operate intraday

  1. Avoid overnight gaps. Overnight news, international events, or Fed announcements can gap stocks 5%+ or more. Day traders avoid this by not holding overnight.
  2. Leverage intraday volatility. Intraday volatility is often greater than overnight volatility. A stock might move 3% intraday.
  3. No overnight capital allocation. Money tied up overnight could be redeployed for multiple intraday trades, multiplying exposure.

Costs and challenges

  1. Commissions and spreads. With 10–20 trades per day, commission costs and bid-ask spreads compound. Retail brokers today have zero commissions, but spreads remain.
  2. Slippage. The price you want and the price you get often differ, especially at market open and close.
  3. Psychological intensity. Watching a position decline 1%, 2%, 3% intraday and needing to decide when to exit is emotionally taxing.
  4. Pattern day trader rule. In the US, accounts under $25,000 cannot execute more than 3 “round-trip” trades (buy-sell pairs) in 5 trading days. This rule is designed to protect retail traders from themselves.
  5. Taxes. All gains are short-term capital gains, taxed at ordinary income rates (often 37% at top federal rates).

The empirical record

Day trading is notoriously unprofitable:

  • Studies show that 90%+ of retail day traders lose money.
  • Those who are profitable often make less than minimum wage when accounting for time and taxes.
  • Institutional day traders (with superior technology, lower costs, and often speed advantages) are profitable, but this is not available to retail traders.

See also

Wider context