What it means
Every financial centre grows a futures contract on its own short-term rate, and for Canada that contract was BAX. Each contract referenced three-month bankers' acceptances, the discounted paper through which Canadian companies borrow short term, so its price moved inversely to the Canadian three-month rate.
The mechanics follow the standard money-market futures design. Prices are quoted as an index: one hundred minus the implied annualised yield, so a price of 96.50 implies a rate of 3.50 percent.
The contract settles against the rate at expiry, and positions gain or lose as rate expectations move. The contract's job is hedging.
A corporate treasurer expecting to borrow in three months sells BAX futures to lock today's rate, while a lender expecting to deposit buys them. Because the underlying is a bank borrowing rate, the hedge tracks what companies and banks actually pay, which is what made the contract useful rather than ornamental.
The Montreal Exchange's own documentation sets out the contract in detail, from its size of one million Canadian dollars per contract to its quarterly expiry cycle, and the exchange built a curve of listed months so hedgers could match positions to dates well into the future. BAX also served as a signal.
Because its prices embed the market's expectation of the Bank of Canada's path, the strip of BAX contracts became the standard read on where Canadian short rates were headed, much as similar contracts do for other currencies. The contract's later history carries a lesson about benchmarks.
As Canada reformed its reference rates and bankers' acceptances faded from use, the exchange redesigned its short-rate complex around the new benchmarks, and BAX was retired in favour of contracts on the replacement rates. Instruments tied to a benchmark share the benchmark's fate.
For a manager with Canadian rate exposure, the practical inheritance is the pattern rather than the ticker: short-rate futures let a treasurer fix a future borrowing cost today, and whatever the current contract is called, the hedge ratio and basis questions are the ones BAX taught a generation of desks to ask. The basis question deserves the emphasis.
A futures hedge only protects if the company's actual borrowing rate moves with the contract's underlying, and the spread between the two, the basis, is where hedges quietly succeed or leak.
In practice
Real-world examples.
Example
A treasurer sells BAX futures to fix the rate on commercial paper the company plans to issue next quarter. If rates rise before the issue, the gain on the futures offsets the higher interest. If rates fall, the futures lose money, but the paper is cheaper to issue.
Example
A money-market desk reads the BAX strip to gauge where the market expects the Bank of Canada to take rates. Prices across successive quarterly expiries are converted into implied yields and compared with the policy rate. A steady decline in the strip's yields signals that cuts are expected.
Example
A pension fund buys BAX to lengthen the short end of its portfolio's rate exposure without selling its deposits. The futures require only margin, so the fund's cash holdings stay in place. The position is closed out before expiry.
Formula
Calculation
Price = 100 - implied three-month yield in percent, so each basis point of rate expectation moves the price by 0.01; profit per contract per basis point = contract size x 0.0001 x 0.25 for the three-month underlying.
Worked example: with a contract size of 1,000,000 Canadian dollars, each basis point is worth 1,000,000 x 0.0001 x 0.25 = $25 per contract. A price of 96.50 implies a rate of 100 - 96.50 = 3.50%. If rates rise 40 basis points, the price falls to 96.10, and a treasurer who sold 20 contracts gains 20 x 40 x $25 = $20,000. The extra interest on a 20,000,000 dollar three-month loan at 0.40% higher is 20,000,000 x 0.004 x 0.25 = $20,000, so the futures gain offsets the higher borrowing cost.Case study
Seen in the real world.
This is a fictional, illustrative example. Maple Ridge Tooling, an invented Canadian manufacturer, will roll $20 million of three-month debt at the next quarter. Fearing a rate rise, its treasurer sells 20 BAX contracts; rates rise 40 basis points by the roll date, the futures gain offsets the extra interest, and the effective borrowing cost lands near the rate that was available when the hedge was placed. The treasurer notes that the hedge worked because the company's borrowing rate moved closely with the contract's underlying. She records the small basis difference between the two and reports it to the board alongside the result.
Watch out
Common mistakes.
- Confusing the price with the rate. The contract trades at one hundred minus the yield, so a falling price means rising rates, and desks that read the index directly have the hedge backwards.
- Ignoring the basis. The futures track the interbank acceptance rate, not any one company's borrowing cost, and a hedge that never measures the spread between the two can leak exactly when rates move most.
- Assuming instruments outlive their benchmarks. BAX existed because bankers' acceptances did, and when the underlying benchmark faded the contract followed, a reminder that every hedge inherits the life expectancy of its reference rate.
Questions
People also ask.
What is BAX?
It was a futures contract on three-month Canadian bankers' acceptances listed on the Montreal Exchange, used to hedge or position on short-term Canadian interest rates, with prices quoted as one hundred minus the implied yield.
How was it used in practice?
Borrowers sold it to lock future funding rates and lenders bought it to fix deposit returns, while markets read the strip of contracts as the expected path of the Bank of Canada's policy rate.
Does BAX still trade?
No; as Canada reformed its reference rates and bankers' acceptances fell out of use, the exchange replaced BAX with contracts on the successor benchmarks, illustrating that futures die with the rates they reference.
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