Hi Nico, not sure I understand your question. As far as I am aware with my brokerage, margin interest is the same for any kind of equity. Unless there is a different form of leverage for DITM LEAPs I am unaware of. Please enlighten!
If you buy DITM option, you spend less money and don't have to use margin, and instead you pay time-value premium.
Example, let's look at Jan '19, 3 strikes at $100, $150, $180. They'd have around $1($100), $2-$3($150), $5-$7($180) of time value built in.
So instead of paying $351, you pay $351-$100, $351-$150 or $351-$180, i.e. you're saving good chunk of purchase price.
You can calculate if this is more advantageous for you or not, interest vs. time value, but also keep in mind:
- DITM can be bought only in lots that correspond to 100 shares
- They are less liquid, and it may be had to get close to the mid price on the spread
- You are not actually shareholder, you don't get to vote
- in RRSP and TFSA accounts, you can't sell covered calls on DITM, while you can do it if you owed shares
- DITM offer modest capital protection, i.e. your loss is limited to the price_paid=sp_price-strike_price+time_value, so in the case of catastrophic event, you do save close to $100, $150 or $180...