Demystifying the Bond market
The bond market is essentially a market where governments and companies borrow money from investors, and investors earn interest in return.
A simple way to understand it is:
Stock market = you buy a piece of a company.
Bond market = you lend money to a company or government.
1. Imagine a government needs ₹1,000 crore
Suppose the Government of India wants to raise ₹1,000 crore to fund infrastructure.
Instead of borrowing the entire amount from a bank, it can issue bonds.
For example:
Face value: ₹1,000
Interest (coupon): 7% per year
Maturity: 10 years
You buy one bond for ₹1,000.
The government promises:
₹70 interest every year
At the end of 10 years → your ₹1,000 principal back
So:
You → ₹1,000 → Government
Government → ₹70/year → You
and eventually:
Government → ₹1,000 → You
2. But bonds can be traded
Suppose you bought that 7% bond for ₹1,000.
A year later, new government bonds are being issued at 9%.
Why would someone buy your old bond paying only 7%?
They won't pay ₹1,000 for it.
You might have to sell it for, say, ₹850.
Now the buyer gets:
₹70 annual interest
plus ₹150 capital gain when the bond eventually returns ₹1,000
So the price of an existing bond falls when market interest rates rise.
Conversely:
Interest rates ↓ → Bond prices ↑
Interest rates ↑ → Bond prices ↓
This inverse relationship is one of the most important concepts in economics.
3. Why does the price change?
Consider two bonds:
| Old Bond | New Bond | |
|---|---|---|
| Face value | ₹1,000 | ₹1,000 |
| Coupon | 7% | 9% |
| Annual interest | ₹70 | ₹90 |
Nobody wants to pay ₹1,000 for the old bond when they can get ₹90 from the new one.
Therefore, the old bond's market price must fall until its effective return becomes competitive with the new 9% bond.
This is why economists often say:
Bond yield ↑ → Bond price ↓
and
Bond yield ↓ → Bond price ↑
4. What exactly is "yield"?
Suppose your ₹1,000 bond pays ₹70 per year.
Initially:
Yield = 70 / 1,000 = 7%
But if its market price falls to ₹875:
Current yield = 70 / 875 = 8%
The bond still pays only ₹70.
Its coupon hasn't changed.
But because you can now buy it for ₹875, your return relative to the purchase price is higher.
That's why financial news might say:
"10-year government bond yield rose from 7% to 7.5%."
It generally means bond prices have fallen, not that the government suddenly changed the coupon on all existing bonds.
5. Who participates in the bond market?
There are two major stages.
Primary market
The government/company issues a new bond.
Government → Bond → Investor
Investor → Money → Government
Secondary market
Investors trade those bonds among themselves.
Investor A → Bond → Investor B
Investor B → Money → Investor A
The government doesn't necessarily receive money every time a bond is traded in the secondary market.
6. Why do governments care about bond yields?
Suppose the RBI raises interest rates.
Banks' borrowing costs tend to rise, and bond yields generally rise too.
That affects:
Bond yields ↑
↓
Government borrowing becomes more expensive
↓
Corporate borrowing becomes more expensive
↓
Home loans / business loans tend to become more expensive
↓
People and companies borrow less
↓
Spending and investment slow
↓
Inflationary pressure can fall
So the bond market is a major transmission mechanism for monetary policy.
7. Government bonds are especially important
In India, you will hear about:
Treasury Bills (T-bills) — short-term government borrowing
Government Securities (G-Secs) — longer-term government bonds
State Development Loans (SDLs) — bonds issued by state governments
Corporate bonds — issued by companies
Government bonds are generally considered lower-risk than corporate bonds because the sovereign is the borrower, although "lower risk" doesn't mean completely risk-free in every sense.
A company might have to offer:
Government bond → 7%
but a weaker company might need to offer:
Corporate bond → 10%
The extra 3% is essentially compensation for taking additional credit risk.
8. One very useful economic concept: the yield curve
Imagine plotting government bond yields against their maturities:
3 months → 6 months → 1 year → 2 years → 5 years → 10 years → 30 years
You get a yield curve.
Normally, longer-term bonds have higher yields because investors want compensation for lending money for longer.
But sometimes you get an inverted yield curve:
Short-term yield > Long-term yield
Economists watch this closely because it can signal expectations of weaker future economic growth and/or future interest-rate cuts.
The big picture
You can think of the bond market as the price-and-interest-rate system for borrowing money across the economy.
BOND MARKET
│
┌──────────────┴──────────────┐
│ │
Borrowers Investors
│ │
Government / Companies Banks / Funds / Individuals
│ │
└────── Issue Bonds ──────────┘
│
↓
Interest rates
│
┌───────────┴───────────┐
↓ ↓
Bond prices Yields
↑ ↓
when rates fall when rates riseThe single relationship I'd remember first is:
Interest rates ↑ → Bond prices ↓ → Bond yields ↑
Interest rates ↓ → Bond prices ↑ → Bond yields ↓
How RBI, inflation, bond yields, stock prices, and the Rupee are connected
Inflation → RBI policy rate → bond yields → borrowing costs → company profits → stock prices → foreign investment → rupee
But the relationships aren't always one-directional. Let's build it step by step.
1. Start with inflation
Suppose inflation in India starts rising:
CPI inflation: 5% → 7%
People's purchasing power is falling, and there is a risk that inflation becomes persistent.
The RBI's primary tool for influencing demand is the repo rate.
2. RBI responds to inflation
If inflation is too high, the RBI can make monetary policy tighter.
For example:
Repo rate: 6.0% → 6.5%
Banks' funding conditions become more expensive, and lending rates tend to rise.
That affects:
Home loans
Car loans
Corporate loans
Working-capital borrowing
Consumer spending
Business investment
The objective is essentially:
Make borrowing more expensive → reduce excess demand → bring inflation down.
3. What happens to bond yields?
This is where our previous discussion comes in.
Suppose a government bond was yielding around 6.5%, and market interest rates move higher.
Investors will demand higher returns from bonds.
So:
RBI tightening → market interest rates ↑ → bond yields ↑ → bond prices ↓
For example:
RBI raises rates
↓
New bonds offer higher yields
↓
Old lower-yield bonds become less attractive
↓
Old bond prices fall
↓
Their effective yields riseThis is why the bond market often reacts very quickly to expectations about what the RBI will do.
4. Now the interesting part: stocks
Higher interest rates can hurt stocks through two channels.
Channel A — Companies' profits
Imagine a company has ₹1,000 crore of debt.
If its borrowing cost rises from 7% to 9%:
Interest expense increases
↓
Profit decreases
↓
Potentially EPS decreases
↓
Stock becomes less attractive.
This is particularly important for highly leveraged companies.
Channel B — Valuation
Suppose you have two choices:
Option A: Government bond → relatively low risk → 7%
Option B: Stock → considerably more risk → expected return 10%
The stock looks attractive.
But if bond yields rise to 9%, investors may say:
"Why take substantial equity risk for only a little extra return?"
They may demand a lower price for the stock.
This is one reason:
Bond yields ↑ → stock valuations tend to ↓
Growth stocks can be particularly sensitive because much of their expected cash flow lies far in the future.
5. What happens to the rupee?
Suppose US interest rates are 4% and Indian bonds offer 7%.
An international investor may think:
"India offers a higher yield. Maybe I should invest in Indian bonds."
This can create demand for Indian assets and potentially for INR.
So, all else equal:
Indian interest rates/yields ↑
→ Indian assets become relatively attractive
→ Foreign capital may flow toward India
→ Demand for INR ↑
→ Rupee may strengthen
But there's an important complication:
Foreign investors don't look only at the Indian interest rate.
They also care about:
Expected rupee depreciation
Inflation
US interest rates
India's growth prospects
Fiscal position
Current-account balance
Global risk appetite
So a higher Indian yield doesn't automatically mean a stronger rupee.
6. Now put everything together
Imagine India suddenly experiences high inflation.
And:
Higher Indian yields → potentially more foreign investment → potentially stronger INR
*depending on global conditions and expectations.
7. But the opposite happens when inflation is falling
Suppose inflation falls significantly.
The RBI now has more room to cut rates.
For example:
Repo: 6.5% → 6.0%
Then:
RBI cuts rates
↓
Bond yields ↓
↓
Bond prices ↑
↓
Loans become cheaper
↓
Consumption + investment ↑
↓
Corporate profits may improve
↓
Stocks may rise
At the same time:
Indian yields ↓
↓
Indian assets may become relatively less attractive
↓
Some foreign capital may move elsewhere
↓
INR may weaken
Again, that's a tendency rather than a rule.
8. Why can the stock market rise even when the RBI raises rates?
Suppose inflation is high, but the RBI raises rates less than investors expected.
For example:
Market expected:
+0.50%
Actual RBI increase:
+0.25%
The market may interpret this as less aggressive than feared.
So even though rates went up, stocks could rise.
Markets care enormously about:
What actually happened vs. what was already expected.
That's why you sometimes see apparently strange market reactions.
9. The RBI doesn't control bond yields directly
Another important distinction.
The RBI directly controls its policy rate.
But the yield on a 10-year government bond is determined by the bond market.
It reflects expectations about things such as:
Future RBI rates
Future inflation
Government borrowing
Economic growth
Global interest rates
Foreign investor demand
Risk
For example:
If investors believe the RBI will cut rates substantially over the next year, the 10-year bond yield can fall today, even before the RBI actually cuts the repo rate.
That's because bond markets are forward-looking.
10. A simple real-world example
Imagine this situation:
Scenario A — High inflation
Inflation: 7%
RBI repo: 6.5%
10-year G-sec: 7.2%
Bank loan: 9.5%
Stock valuations: relatively pressured
Rupee: potentially under pressure if inflation is persistent
Scenario B — Inflation falls
Inflation: 4.5%
Markets expect RBI cuts.
10-year G-sec: 6.7%
Bank loan rates gradually fall.
Companies can borrow more cheaply.
Future profits become more valuable.
Stock valuations can expand.
The rupee may weaken somewhat because Indian yields are lower—but strong growth or foreign capital inflows could offset that.
The most important mental model
When you read financial news, think of these five variables as a system, not five independent things:
And remember these three relationships:
Relationship 1
Inflation ↑ → RBI tends to tighten → interest rates ↑
Relationship 2
Interest rates ↑ → bond yields ↑ → bond prices ↓
Relationship 3
Higher rates → generally pressure stock valuations and borrowing → potentially support INR through higher relative yields
The really interesting next step is understanding why a 10-year G-Sec yield can rise even when the RBI has NOT changed the repo rate. That is where expectations, government borrowing, inflation forecasts, and the bond market really come together.
Apart from repo rate what other rate is controlled by RBI
The RBI influences several other interest rates besides the repo rate, but there is an important distinction between rates the RBI directly sets and rates it influences through the market.
Key RBI policy rates
| Rate / facility | What it means | RBI's role |
|---|---|---|
| Repo rate | Rate at which banks borrow short-term money from RBI against securities | Directly set |
| SDF (Standing Deposit Facility) | Rate banks earn for parking money with RBI without collateral | Directly set |
| MSF (Marginal Standing Facility) | Rate at which banks can borrow overnight from RBI, typically as an emergency/liquidity facility | Directly set |
| Bank Rate | Historically linked to RBI's lending/penalty framework; now aligned with the MSF rate | Set by RBI |
| Reverse repo rate | Rate for banks parking money with RBI | RBI sets it, but its role has changed with the SDF |
The important corridor
Think of RBI's operating framework roughly like this:
MSF / Bank Rate
↑
│
Repo Rate
│
↓
SDF RateThe repo rate is the central policy rate.
The SDF rate effectively forms the lower bound for overnight money-market rates, while the MSF rate forms the upper end of the RBI's operating corridor.
What about the 10-year government bond rate?
This is not directly controlled by RBI.
For example, if you see:
"10-year G-Sec yield = 6.8%"
that is a market-determined rate.
It is influenced by:
RBI's repo rate
Expectations of future repo rates
Inflation expectations
Government borrowing requirements
Demand/supply of government bonds
Global interest rates
Foreign investment flows
So the RBI can strongly influence the 10-year yield, but it doesn't simply announce:
"Today's 10-year G-Sec rate is 6.8%."
And bank FD/home-loan rates?
These are also not directly set by RBI.
For example:
RBI repo rate → banks' funding conditions → MCLR/EBLR → home-loan rates
Many floating-rate retail loans are linked to an external benchmark, commonly the RBI repo rate, so changes in repo can flow through relatively quickly.
FD rates, corporate bond yields, and many other market rates are determined by banks and markets, although RBI policy has a major influence.
One subtle but important point
You may hear people say "RBI controls interest rates."
More accurately:
RBI directly controls a small set of policy rates and uses them to influence the much larger set of interest rates determined by banks and financial markets.
That's why the repo rate → bond yields → loan rates → stocks → rupee chain we discussed earlier is so important.
To suck liquidity, RBI mandates certain amount to be parked by bank with RBI. What is it called
Cash Reserve Ratio (CRR).
- CRR = the percentage of a bank's Net Demand and Time Liabilities (NDTL) that it must maintain as cash with the RBI.
- The bank does not earn interest on CRR balances.
- Because that money cannot be freely lent out, increasing CRR can remove liquidity from the banking system.
For example, if CRR were 4% and a bank had ₹1,000 crore of NDTL:
₹40 crore → maintained with RBI
₹960 crore → available for other uses/lending
Don't confuse CRR with SLR
There are two important reserve requirements:
| CRR | SLR | |
|---|---|---|
| Full form | Cash Reserve Ratio | Statutory Liquidity Ratio |
| Maintained | With RBI | By the bank itself |
| Form | Cash balance | Liquid assets, mainly govt securities, gold, etc. |
| Can bank earn return? | No interest from RBI | Yes, securities can earn interest |
| Main effect | Directly removes lendable liquidity | Requires banks to hold liquid assets |
So if you're specifically remembering "RBI mandates banks to park a certain percentage with RBI to suck liquidity", that's CRR.
There's also a fascinating connection between CRR, SLR, repo rate and money creation by banks—which explains how RBI can control how much ₹100 of bank deposits can ultimately turn into loans.
No comments:
Post a Comment