Understand brokerage charges and pricing models

1.5.5 · Stock-Market › Brokerage, Demat & Account Setup

WHAT is brokerage?

WHY do the models differ? (Derivation from first principles)

WHY percentage brokerage exist karta hai? Historically brokers advice + relationship service dete the. Service karne ki cost (unka maanna tha) tumhari move ki gayi money ke saath scale hoti thi, isliye woh turnover ka ek hissa charge karte the.

Ek side ka turnover $T = Q \times P$ ho (quantity $\times$ price).

$Brokerage_{%} = \frac{p}{100} T = \frac{p}{100} QP$

Yeh per leg charge hota hai (ek baar buy par, ek baar sell par), isliye ek round trip ki cost $2 \times$ hoti hai.

WHY flat model aaya? Technology ne "cost scales with turnover" wali assumption ko khatam kar diya. ₹500 ka order aur ₹5,00,000 ka order execute karne mein broker ka same server time lagta hai. Toh discount brokers ne kaha: ek constant charge karo.

$Brokerage_{flat} = f (independent of T)$

Real brokers inhe ek cap ke saath combine karte hain:

$Brokerage = min (f, \frac{p}{100} T)$

HOW break-even turnover derive karein jahan flat, percentage ko beat kare. Dono ko equal set karo:

$\frac{p}{100} T^{⋆} = f \Rightarrow T^{⋆} = \frac{100 f}{p}$

Agar tumhara turnover $T > T^{⋆}$ → flat sasta hai.
Agar $T < T^{⋆}$ → percentage sasta hai.

Figure — Understand brokerage charges and pricing models

Worked Examples

Common Mistakes (Steel-manned)

Recall Feynman: 12-saal ke bache ko samjhao

Socho ek dukandaar jo tumhara paisa lekar bazaar mein toffees kharidne jaata hai. Ek dukandaar kehta hai "Jo tum kharcho uska 30 paise per ₹100 lunga." Doosra kehta hai "Main sirf ek flat ₹20 lunga, chahe kuch bhi ho." Agar tum bahut saari toffees kharid rahe ho, toh flat ₹20 ek bargain hai. Agar tum sirf ek toffee kharid rahe ho, toh chhota sa percentage better hai. Saath mein, raja (government) hamesha apna chhota sa tax leta hai — dukandaar ki fee aur raja ka tax do alag cheezein hain!

Active Recall Flashcards

Brokerage kya hai?

Woh fee jo broker tumhara buy/sell order execute karne ke liye charge karta hai; broker ki apni revenue, statutory taxes se alag.

Do main brokerage pricing models kaun se hain?

Percentage-of-turnover model aur flat-fee (discount) model.

Per leg percentage brokerage ka formula?

\frac{p}{100} \times

turnover, jahan turnover = quantity × price.

Flat aur percentage ke beech break-even turnover ka formula?

T^{⋆} = \frac{100 f}{p}

, jahan

f

flat fee hai aur

p

percentage.

Break-even turnover ke upar kaun sa model sasta hai?

Flat-fee model.

Brokerage ek baar charge hota hai ya per leg?

Per leg — buy par alag aur sell par alag.

GST kis base par charge hota hai?

18% of (brokerage + exchange transaction charges), turnover par NAHI.

Kya "zero brokerage" ka matlab zero cost hai?

Nahi — STT, stamp duty, exchange fees, GST aur DP charges tab bhi lagte hain.

Flat-fee discount brokers kyun aaye?

Kyunki technology ne execution cost ko trade size se independent bana diya, "cost scales with turnover" wali assumption tod di.

Break-even turnover agar flat = ₹20 aur percentage = 0.30% ho?

T^{⋆} = 100 \times 20/0.30 \approx ₹6, 667

per leg.

Connections

Statutory Charges — STT, Stamp Duty, GST, SEBI Fees
Contract Note — Reading Your Trade Bill
Discount Broker vs Full-Service Broker
Demat & DP Charges
Turnover and Position Sizing
Break-even Analysis in Trading