- Creating a simple covered call position, buying the underling equity and selling-to-open calls
- Creating a call bear option spread, selling the lower strike call, and buying the higher strike price.
- Closing out a covered call position.
- Reducing trading costs—typically commissions are reduced compared to executing the trades independently
- Beating the bid/ask spread.
- Eliminating the risk that the market will move against while you are in the middle of creating a two part position
- Allowing you to explore the best price available on a multiple position sale.
- Circumventing the $0.05 minimum increments on some option prices.
- Debit—I go into debt
- Credit—I get the credit..
Figuring out the order price is the next challenge. Your broker’s software might suggest a value—but you will probably leave at least a little money on the table if you use this number. It’s like ordering your combo meal à la carte rather than buying the “meal deal”. My goal is to set a price that doesn’t fill immediately, but rather takes several minutes to execute. When I see a delay I’m pretty sure I’ve gotten close to the best deal available.
I have found that splitting the bid / asked prices is a good starting point for combo orders. If that price doesn’t fill in a reasonable time you can always sweeten the offer. So for example if I want to create a covered call position with Apple:.
If you get a fill at this lower offer you have saved $0.16 per share. If your order doesn’t fill after a reasonable amount of time, either the market has moved against you, or your price isn’t sweet enough. Fidelity’s and Schwab’s software will generally allow you to change your price without cancelling your order. If not —you’ll need to cancel and re-submit to change the price. Remember on a debit order lower is better for you and on a credit order higher is better.
Partial fills can happen anytime you use a limit style order. If you are ordering more than unit quantities (e.g., 1 call / 100 shares of stock, or single long/short option pairs) in a combo order you may see only a part get filled. For example if I want to buy 300 shares of USO and sell-to-open 3 calls the exchange might execute only one third or two thirds of your order.
Generally partial fills are a good thing because it suggests you are right on the edge of what the market makers are willing to do. Your commission costs are unchanged regardless of how many chunks your order gets divided into during the course of the day. However if the market closes, or the market moves against you before your order completely fills then you will have to pay another commission if you want to complete your order. You can prevent partial fills by selecting “All” in the “All Or None” (AON) order conditions, but you may need to sweeten your offer in order to get a fill. I generally put my combo orders in during the morning, and I rarely have a problem. Either the market won’t bite at all, or if I get some partial fills the order generally completes.
- Orders that mix both stocks/ETFs and options are not automatically handled and generally don’t provide fast execution. Actual humans have to get involved with these trades, so expect execution in minutes, not seconds after you submit your order.
- I have seen combo orders go stale Even though they should have executed they don’t—maybe the brokers lose their sticky notes… Cancelling and reentering the order will usually trigger execution.
- You may see a “market” option in addition to the limit option with combo orders. Avoid these. Execution may be slow and you have no guarantee of what price your order will fill at..
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