I'm shifting my asset allocation from 100% equities to about 90/10 and I'm researching bond funds at Fidelity. My elementary understanding of bonds tells me that short term funds are a better choice in the low rate environment as these bonds will mature quicker and higher yield bonds will enter the fund after a short term dip in price if rates rise. I have no clue about bonds though.
Also, I should point out that it was in my plan all along to shift to some bonds as my portfolio matured, not because equity prices have risen.
https://www.fidelity.com/mutual-funds/fidelity-funds/why-index-fundsFidelity Inflation-Protected Bond Index Fund View Fund View Fund
Fidelity Intermediate Treasury Index Fund View Fund View Fund
Fidelity Long-Term Treasury Index Fund View Fund View Fund
Fidelity Short-Term Treasury Index Fund View Fund View Fund
Fidelity U.S. Bond Index Fund View Fund View Fund
Fidelity Short-Term Bond Index Fund NEW View Fund View Fund