Pakistan Investment Bonds (PIBs) are medium- and long-term rupee bonds issued by the Government of Pakistan to finance its budget. They are issued under the Pakistan Investment Bonds Rules, 2000, and sold at auctions run by the State Bank of Pakistan (SBP) acting for the Finance Division. Unlike short-term bills, most PIBs pay interest, called a coupon, during their life and repay the face value at maturity.
PIBs are Pakistan's counterpart to the Treasury Bonds (TBs) and Treasury Notes issued by the US Treasury and to government bonds in other countries. They are the long-dated partner of Market Treasury Bills (MTBs) and form the core of what Pakistan's debt statistics call permanent debt, the part of domestic debt with original maturities beyond one year.
Pakistan Investment Bonds in plain terms
A PIB is like renting your savings to the government for several years. You hand over Rs 100,000; every six months the government sends you a fixed "rent" payment, and at the end of the agreed period it gives your Rs 100,000 back.
With a fixed-rate PIB, the rent never changes, which is reassuring if interest rates fall but frustrating if they rise. With a floating-rate PIB, the rent is reset at intervals to follow current market rates, a bit like a tenancy where the rent is reviewed every few months. Either way, the bond can be sold to another investor before the period ends, at whatever price the market will pay that day.
Types of PIB
- Fixed-rate PIBs. These pay a fixed coupon rate twice a year until maturity. The SBP's InvestPak portal lists 3-, 5-, 10-, 15-, 20- and 30-year tenors, though recent auctions have concentrated on the shorter end, including a 2-year paper.
- Floating-rate PIBs. First auctioned in May 2018 with a 10-year tenor, their coupon equals a benchmark, the weighted-average yield of the 6-month MTB auction, plus or minus a margin set at auction. Versions with semi-annual and quarterly resets have been issued.
- Zero-coupon PIBs. Introduced in 2025, these pay no periodic interest; they are bought at a discount and redeemed at face value, like a long-dated bill. A 15-year zero-coupon PIB was first sold in mid-2025.
The government also issues Shariah-compliant rupee sukuk, mainly Ijara Sukuk, for Islamic banks that cannot hold interest-bearing PIBs.
How PIB auctions work
The SBP announces a quarterly auction calendar with target amounts by tenor. Primary dealer banks submit competitive bids on behalf of themselves and clients, stating the amount and the yield (for fixed bonds) or the margin over the benchmark (for floaters). The government sets a cut-off and accepts bids within it; it can also reject all bids in a tenor if yields are judged too high, which happens fairly often. New bonds are frequently "re-opened" so that additional amounts of an existing issue are sold, building larger, more tradeable lines.
The Pakistan Economic Survey 2024-25 shows how investor demand shifts with rate expectations. During July–March FY2025, floating-rate PIBs made up about 70% of the Rs 23.9 trillion offered, but the share of fixed-rate bonds in accepted amounts rose to about 22.5% as investors tried to lock in yields before expected cuts in the interest rates.
Who holds PIBs and why
- Banks. Scheduled banks are the largest holders; PIBs count towards statutory liquidity requirements and serve as collateral in the repurchase agreement (repo) market and in the SBP's open market operations (OMOs).
- Institutional investors. Insurance companies and pension funds buy long tenors to match long-term liabilities.
- Mutual funds and individuals. Income funds hold PIBs, and individuals can buy them through an Investor Portfolio Securities account at a bank or through the SBP's InvestPak portal.
- Non-residents. Overseas investors can buy PIBs through special rupee accounts, though their holdings have been modest and volatile.
Secondary-market prices of PIBs feed the government yield curve used to price corporate bonds and loans, alongside KIBOR at the short end.
Risks for investors and the government
For investors, fixed-rate PIBs carry interest-rate risk: when market yields rise, their prices fall, and a bank holding them may face unrealized losses. Floaters reduce that risk but leave income exposed to falling rates. All rupee bonds carry inflation and currency risk for foreign holders.
For the government, the heavy use of floaters means that a rise in the policy rate quickly raises interest costs across a large part of the debt. Debt managers therefore balance cheap short-term funding against the certainty of long fixed-rate borrowing, a trade-off at the heart of debt management.