NEW YORK ( TheStreet) -- As the investor quest, make that need, for yield goes on, ETF providers continue to offer new funds in increasingly specialized segments of the fixed-income market that provide the opportunity for better payouts. One of the most recent funds in this space is the SPDR Blackstone/GSO Senior Loan Fund ( SRLN).As the name implies, SRLN invests in senior loans, which according to the fund's literature are defined as "first lien senior secured floating rate bank loans." The rates on these senior loans reset every 90 days which makes the duration of the fund very short. The benefit is that if interest rates start to move meaningfully higher, the value of the underlying loans and of the fund should not decline as many bond funds will.
When interest rates go up, bond prices go down. The further out the maturity of a bond or target maturity of a bond fund, the more the price would be expected to drop. As a rule of thumb, an increase of one percentage point for a bond maturing in 10 years will cause a price drop of 8% for that bond. Holders could wait until maturity to get their money back (the par value), but they would be getting below-market yields until that time. With bond funds, there is no par value to return back to. A bond fund might never recover what is lost to rising rates. SRLN offers the chance to avoid that by owning paper whose yield typically resets every 90 days. The 90-day reset is important to remember when looking at the fund's holdings because the way they are listed on the SPDR Web site they look like regular bonds that mature in five or seven years or whatever the case may be. The fund invests in health care at 12%, telecom at 11%, business services at 10% and retail at 9% before getting smaller from there. Senior loans are typically issued by companies with low credit ratings and so the credit quality of SRLN reflects that. BBB- and BB+ rated debt each comprise 7% of the fund, BB 14%, BB- 25%, B+ 26% and B-rated bonds 18%.