This is an actively managed bond ETF that invests in short-maturity California municipal bonds. Interest on California municipal bonds is exempt from federal tax and, for California residents, from state tax as well, and the short maturities help keep interest rate risk low.

It suits conservative investors who are California residents and want to benefit from federal and state tax savings while reducing interest rate risk.

It is an ETF run by iShares using an active (actively managed) approach.

The fund actively invests in short-maturity California municipal bonds in pursuit of tax-advantaged interest income. For California residents, interest is exempt from both federal and state tax, though the portfolio is concentrated in a single state, and keeping maturities short is designed to reduce exposure to interest rate swings.

• Narrow exposure to short-maturity California municipal bonds
• Dual exemption from federal and state tax

Assets under management (AUM) stand at $664.0M, and the expense ratio is 0.20% per year.

Compared with the national short-term municipal bond ETFs SUB and SHM, the main points of comparison are the California concentration and the state tax exemption.

Municipal bond ETFs are driven by the direction of interest rates, and short-term municipal bonds, with their short maturities, generally show smaller price swings when rates move. State-specific municipal bonds are affected by the fiscal conditions of that state, so their performance can diverge somewhat from national municipal bonds.

Fund flows into state-specific short-term municipal bonds vary with demand for tax benefits, the interest rate cycle, and the state's fiscal situation, and residents' demand for tax savings can also draw money into related products. It is also worth watching how performance diverges depending on interest rates and the state's fiscal environment.

Its strengths are the dual federal and state tax exemption and low interest rate sensitivity, while single-state concentration risk, residency restrictions, and limited returns are considerations.

For diversification across national short-term municipal bonds without single-state concentration, direct substitutes include SUB, and for exposure to California municipal bonds without a maturity limit, products such as CMF are also worth comparing. Those who want broad national municipal bond exposure can also consider products such as MUB. The three products shown in the table, SUB, SHM and VTES, all invest in national short-term municipal bonds and differ in California concentration and state tax exemption. This ETF is differentiated by its narrowly focused, dual tax-exempt exposure to short-maturity California municipal bonds.

Here are the points to review before investing in CALI. The dual tax savings and low interest rate sensitivity are attractive, but single-state concentration risk, residency restrictions, and the level of expected returns need to be confirmed in advance. It is also advisable to compare it with national short-term municipal bond products.

A deterioration in California's fiscal environment and a decline in short-term interest rates are the main variables for near-term performance, and because the fund is concentrated in one state, its regional risk is greater than that of national municipal bonds. The state tax exemption applies only to California residents, so the appeal diminishes for investors in other states.

It is a suitable candidate for conservative investors who are California residents and want federal and state tax savings while reducing interest rate risk. If you want national short-term municipal bonds without single-state concentration, consider products such as SUB; if you want dual tax-exempt exposure to short-term California bonds, it is advisable to compare and choose this product alongside them.