Understand the role of underwriters - merchant bankers

What is a Merchant Banker / Underwriter?

The Core Roles (WHAT they actually do)

Figure — Understand the role of underwriters - merchant bankers

HOW the money & risk actually flow — deriving the economics

Let's build the underwriter's payoff from first principles instead of memorising a fee formula.

Setup. A company issues $N$ shares at price $P$ . The target amount raised is:

$\text{Target} = N \times P$

The underwriter charges an underwriting commission — a percentage $c$ of the amount they agree to underwrite. If they underwrite the full issue:

$\text{Commission} = c \times (N \times P)$

Now the risk part. Suppose the public actually subscribes to $S$ shares out of $N$ . Define the shortfall:

$\text{Shortfall} = \max(N - S,\ 0)$

Under a firm (full) underwriting agreement, the underwriter must buy the shortfall at price $P$ :

Worked example Worked Example 1 — a well-received IPO

Company issues $N = 1{,}000{,}000$ shares at $P = ₹100$ . Commission $c = 2\% = 0.02$ . Public subscribes for $S = 1{,}200{,}000$ shares (oversubscribed).

Step 1: Fee. $F = 0.02 \times 1{,}000{,}000 \times 100 = ₹2{,}000{,}000$ . Why this step? Fee is % of the underwritten amount $N\cdot P = ₹10$ cr.
Step 2: Shortfall. $\max(1{,}000{,}000 - 1{,}200{,}000, 0) = 0$ . Why? Demand exceeded supply, so nothing is left over.
Step 3: Net. $2{,}000{,}000 - 0 = ₹2{,}000{,}000$ profit. Why? Pure fee, zero risk realised. Ideal outcome.

Worked example Worked Example 2 — an undersubscribed IPO

Same $N=1{,}000{,}000$ , $P=₹100$ , $c=2\%$ . But public only subscribes $S = 700{,}000$ .

Step 1: Fee. $F = ₹2{,}000{,}000$ (earned regardless).
Step 2: Shortfall. $\max(1{,}000{,}000 - 700{,}000,0) = 300{,}000$ shares.
Step 3: Cost to buy leftovers. $300{,}000 \times 100 = ₹30{,}000{,}000$ . Why? The underwriting promise forces them to buy at the agreed price $P$ .
Step 4: Net cash. $2{,}000{,}000 - 30{,}000{,}000 = -₹28{,}000{,}000$ . Why negative? They spent ₹3 cr acquiring shares they must now try to resell in the secondary market — real risk realised. This is what the fee compensates for.

Types of underwriting (WHY each exists)

Common Mistakes (Steel-man → Fix)

Forecast-then-Verify

Recall Before reading answer: If an IPO of 5,00,000 shares at ₹200 (commission 2.5%) is subscribed for only 4,00,000 shares under firm underwriting, what is the underwriter's net cash?

Fee $= 0.025 \times 5{,}00{,}000 \times 200 = ₹25{,}00{,}000$ .
Shortfall $= 1{,}00{,}000$ shares → cost $= 1{,}00{,}000\times200 = ₹2{,}00{,}00{,}000$ .
Net $= 25{,}00{,}000 - 2{,}00{,}00{,}000 = -₹1{,}75{,}00{,}000$ (a loss of ₹1.75 cr). ✅

Flashcards

What is a merchant banker?

A SEBI-registered institution that manages the entire process of issuing securities (advising, pricing, documentation, marketing).

What does an underwriter guarantee?

To buy the unsubscribed (leftover) portion of an issue, absorbing the risk of undersubscription.

Formula for underwriting commission on a fully underwritten issue?

F = c \cdot N \cdot P

(commission rate × number of shares × price).

Under firm underwriting, what does the underwriter do with unsold shares?

Buys them itself at the offer price and resells later in the secondary market.

Difference between merchant banker and stockbroker?

Merchant banker works in the primary market (new issues); stockbroker works in the secondary market (existing shares).

What is the Green Shoe option?

An over-allotment option letting underwriters sell up to 15% extra shares to stabilise the price and meet excess demand.

Firm-commitment vs best-efforts underwriting?

Firm-commitment = underwriter buys whole issue & guarantees money; best-efforts = underwriter only tries, no guarantee, unsold shares return to issuer.

Why does an underwriter charge a fee even when it makes no profit on shares?

The fee is an insurance premium for bearing the risk of undersubscription.

Why do underwriters form syndicates?

To spread the large downside risk of a big issue across multiple firms (like reinsurance).

Who owns the money raised in an IPO?

The issuing company (minus the underwriter's fee), not the underwriter.

Recall Feynman: explain to a 12-year-old

Imagine you baked 100 cupcakes to sell at the school fair, but you're scared nobody will buy them. Your older cousin says: "I'll help. I'll set the price, tell everyone how yummy they are, and here's the deal — if some cupcakes don't sell, I'll buy them myself. For all this, pay me a few cupcakes as my fee." That cousin is the underwriter. They (1) make sure your cupcakes are good, (2) pick a fair price, (3) advertise, and (4) promise to buy the leftovers so you always go home with money. If everyone buys the cupcakes, your cousin just keeps the fee and did easy work. If lots are left, your cousin is stuck eating cupcakes — that's the risk they took for the fee.

Connections

Primary Market — where the underwriter operates (new securities created).
Secondary Market — where leftover / listed shares later trade.
Initial Public Offering (IPO) — the event underwriters manage.
Prospectus and Red Herring Prospectus — the document merchant bankers prepare.
Book Building Process — how the price band & order book are formed.
SEBI Regulations — the authority registering and governing merchant bankers.
Green Shoe Option — price-stabilisation tool used by underwriters.

Concept Map

Hinglish (regional understanding)

Intuition Hinglish mein samjho

Socho ek company apne shares public ko pehli baar bechna chahti hai (IPO). Company ko dar lagta hai — "agar koi shares na khareede to?" Yahin par aata hai underwriter / merchant banker. Ye ek SEBI-registered expert hota hai jo pura issue manage karta hai: company ke accounts check karta hai (due diligence), sahi price decide karta hai, prospectus banata hai, aur bade investors ke saath roadshows karke demand banata hai.

Sabse important cheez — underwriter ek guarantee deta hai: agar public ne saare shares nahi khareede, to bacha hua portion khud khareed lega offer price par. Iske badle wo ek commission (fee) leta hai, jo issue amount ( $N \times P$ ) ka ek percentage hota hai. Yaad rakho: ye fee ek insurance premium ki tarah hai — risk uthane ka reward. Agar IPO oversubscribe ho gaya, underwriter ka kaam easy, poori fee free mein mil jati hai. Lekin agar undersubscribe hua, to use apni jeb se leftover shares khareedne padte hain, aur wo loss mein bhi ja sakta hai (jaise Example 2 mein -₹28M).

Isliye underwriter kabhi price bahut zyada nahi rakhta — agar price high hua to shares bikenge nahi aur uska paisa phasega. Bade issues mein risk kam karne ke liye kai underwriters milkar syndicate banate hain, jaise insurance companies reinsurance karti hain. Ek aur cheez — Green Shoe option se demand zyada ho to 15% extra shares bech sakte hain aur price stabilise kar sakte hain.

Bottom line: merchant banker = primary market ka expert jo naye securities issue karta hai; stockbroker = secondary market ka banda jo purane shares trade karta hai. Dono alag hain. Underwriter matchmaker + inspector + insurer, teeno ek saath hota hai — isiliye IPO safely complete hota hai.

Test yourself — Primary vs Secondary Market & IPOs

Connections