Level 3 · Module 2 · Mechanics
Demat, Broker & Order Types
The practical mechanics: accounts, charges and the buttons you'll actually press.
In this lesson
What you'll be able to do
- Know what demat vs trading accounts do
- Use market, limit and stop-loss orders correctly
- Read the real cost of a trade
Think about it
Why can a 'market order' on a thinly traded stock fill at a price you never intended?
Story
Let's picture it
Because a market order says 'any price, right now'. If only a few sellers are quoting and they're far above the last price, your order climbs the ladder to fill. On liquid large-caps this barely matters. On an illiquid small-cap, it can cost several percent instantly. A limit order says 'this price or better', slower, but it never surprises you.
Visual
Order types
Market order
Executes immediately at the best available price
Limit order
Executes only at your price or better, may not fill
Stop-loss order
Triggers an order once a set price is hit, to cap a loss
AMO
After-market order, queued for the next session
Plain English
The simple explanation
A demat account holds your shares; a trading account places orders. Most brokers open both together, linked to your bank account.
Costs are more than brokerage: STT, exchange transaction charges, SEBI turnover fee, stamp duty, GST and DP charges on sell. Small on large trades, meaningful on tiny frequent ones.
Delivery means you receive the shares in your demat. Intraday means you square off the same day, higher risk and a different cost and margin profile.
Real world
Discount brokers
Flat-fee brokers changed Indian retail investing by lowering the visible cost of trading. Lower cost per trade, however, quietly encourages more trades, and frequency, not fees, is what usually hurts returns.
Watch out
Common mistakes
- Using market orders on illiquid stocks
- Ignoring DP charges and taxes when computing gains
- Treating intraday leverage as free money
Did you know?
SEBI requires brokers to send a contract note after every trade, it itemises every charge. Reading one once teaches you the full cost stack.
Your turn
Mini challenge
Find any contract note or a broker's charge list. Add up every non-brokerage cost on a hypothetical ₹10,000 trade.
Quick quiz
1 / 3
Wrap up
Summary
Demat holds, trading transacts, order type controls how you enter, and total cost is far more than brokerage.
- Limit orders control price; market orders control speed
- Costs = brokerage + STT + exchange + stamp + GST + DP
- Intraday ≠ delivery
Revise