Interactive Brokers is likely the best brokerage firm you can use in Canada when it comes to non-RRSP accounts. Unfortunately, they do not support RRSP transactions (yet), but the nanosecond they do, I will be switching over. With dirt cheap commissions, it enables you to make certain transactions that you would never think of using most other brokerages. It costs US$1 to transact 200 shares on a US stock exchange, and CDN$2 to transact 200 shares on the TSX.
The only clear disadvantage I can find with Interactive Brokers is that they charge a minimum fee of US$10/month for activity and they will net this against whatever transaction volume you generate. So if you generate US$4 in commissions for the month, they will deduct US$6 from the account at the end of the month. This may sound like a rip-off if you’re a low-volume customer like I am, but this is actually a superior deal than most other brokerages if you plan on trading more than 5 times a year.
A hidden benefit is that low commissions allows a very effective layering strategy – when getting into positions, you can do so 200 shares at a time at the price decrement/increment you so desire. For example, instead of buying 400 shares at $20, you can buy 200 shares at 20 and 200 shares at $19.80 and still pay the same commission. It severely decreases execution risk (you can get partial positions at cheaper prices or sell partials for higher prices) and as a result will likely end up saving more money than just the commissions alone. In a game where 0.1% matters, this is important.
The other way that Interactive Brokers makes some money off their customers is that they give interest on their accounts using a tiered scheme. In US currency, you don’t earn anything on the first $10,000. On the next $90,000, you earn LIBOR minus 0.5%. (LIBOR is the London Interbank Offering Rate, about 5.29% right now). On money above that, they credit you LIBOR minus 0.25%.
The salient detail is the first $10,000 – you don’t earn interest on this money. This means if you hold any cash balance, you have money at work that is earning money for Interactive Brokers rather than yourself. At a risk-free 4.5%, this would work to roughly $450/year or $37.50/month.
There is a way to capture this for yourself, however. The IShares Short Term Bond Fund ETF (ticker symbol SHY) invests in short term government securities with maturities of 1-3 years. Right now it averages 1.9 years in duration, with a weighted average coupon of 3.92% and yield to maturity of 4.69%. Management expense ratio is 0.15%. In theory you should be earning around 4.5% out of this.
Because the shares trade at about US$80 a pop, you can get in and out in US$16,000 quantities for the cost of one whole US dollar. This means transactional expenses of 0.0063% per direction and you can easily see if you have excess cash in your account using Interactive Brokers that it’s very wise to dump it all into SHY until you can figure out something better to do with your money – this way you can reduce your cost of keeping cash at Interactive Brokers to an absolute minimum.
Note if you trade less than US$10/month and you do this, your marginal transactional cost of doing this is actually zero. It’s even worth it to park your cash in this sort of investment vehicle for half a month – using the example with numbers above, you can still clear about 0.175%/half-month if you bought and sold this on a regular basis, assuming your trades were spread-neutral.