Not all bonds are equally safe. Ratings agencies grade borrowers from very safe (“investment-grade”, like AAA down to BBB-) to riskier (“high-yield” or “junk”, BB+ and below). A riskier borrower has to offer a higher interest rate to get anyone to lend to them — that gap over a safe government bond is the spread.
- Investment-grade (IG) — safer companies; a narrower spread. In Finisdom, LQD tracks a basket of these.
- High-yield (HY) — riskier companies; a wider spread for the extra risk. HYG tracks a basket of these.
- Emerging-market (EM) debt — government and corporate bonds from developing economies; EMB tracks a basket of these, and spreads there react to both credit risk and the dollar.
- Duration — how sensitive a bond’s price is to interest-rate moves. Longer-dated bonds swing more when rates change.
Think of it like a loan to a friend. Lending to your steady, reliable friend is (mostly) fine at a low rate. Lending to a friend who’s flaky about paying you back — you’d want a higher rate to make it worth the risk. The spread is that “worth the risk” premium, set by the whole market instead of just one lender.
Finisdom’s Macro Overview shows the current high-yield spread and whether it’s tight or widening. The Portfolio Lab and Allocation Explorer both include HYG, LQD, and EMB in their instrument universe, alongside the Treasury ETFs (TLT, IEF, SHY, AGG) you’ve already met.