Market Interest Rates: Rising interest rates generally decrease bond prices, as newly issued bonds offer higher yields, making older bonds less attractive. This impacts ITEIX.US, a bond fund.

Credit Risk: Changes in the perceived creditworthiness of the bond issuers held by the fund. Downgrades lead to price drops, while upgrades increase prices.

Inflation Expectations: Higher inflation erodes the value of future bond payments, decreasing bond prices and consequently ITEIX.US's value.

Economic Growth: Stronger economic growth can lead to higher interest rates, indirectly affecting bond prices negatively. Conversely, slower growth may lower rates and increase bond prices.

Fund Management: The skill and strategy of the fund managers in selecting and trading bonds affect the fund's performance and thus its price.

Supply and Demand: General supply and demand for bond funds. High demand increases the price, while increased selling pressure decreases it.

Duration: A measure of a bond fund's sensitivity to interest rate changes. Higher duration means greater price fluctuations with interest rate changes.

Expense Ratio: The annual cost of operating the fund, deducted from fund assets. A lower expense ratio is beneficial for returns.

Liquidity of Underlying Bonds: Illiquid bond holdings can make it difficult to sell quickly at fair prices, potentially impacting the fund's net asset value.