IB is shooting itself in the foot by failing to publicize the following.
IB is making markets in EFPs, and allowing its customers to do so as well, thru its own internal ECN book devoted especially to EFPs. It is called IBEFP. IB usually maintains spreads on this ECN which are far narrower than the spreads one would have to pay by entering each leg of an EFP separately. Separately legging into an EFP would require one to pay the spread on an SSF, which would be very expensive. IBEFP replaces that mile-wide spread with a far narrower spread made by IB, and sometimes, narrowed even more by IB customers.
Conversions were previously superior to EFPs, for purposes of collecting interest or other financing needs, because of the smaller spread costs; but now, thanks to IBEFP, spreads are smaller for EFPs than for conversions. Commissions are also much smaller.
Another advantage of EFPs is that they eliminate the risk of early assignment created by the short call in a conversion. Early assignment can leave the remaining long put and long stock legs incompletely hedged and this can result in losses.
IB is making markets in EFPs, and allowing its customers to do so as well, thru its own internal ECN book devoted especially to EFPs. It is called IBEFP. IB usually maintains spreads on this ECN which are far narrower than the spreads one would have to pay by entering each leg of an EFP separately. Separately legging into an EFP would require one to pay the spread on an SSF, which would be very expensive. IBEFP replaces that mile-wide spread with a far narrower spread made by IB, and sometimes, narrowed even more by IB customers.
Conversions were previously superior to EFPs, for purposes of collecting interest or other financing needs, because of the smaller spread costs; but now, thanks to IBEFP, spreads are smaller for EFPs than for conversions. Commissions are also much smaller.
Another advantage of EFPs is that they eliminate the risk of early assignment created by the short call in a conversion. Early assignment can leave the remaining long put and long stock legs incompletely hedged and this can result in losses.