General Market Conditions: Broad economic trends, investor sentiment, and overall market performance influence TSPFX.US, as it invests in a wide range of US stocks.

Interest Rates: Changes in interest rates set by the Federal Reserve can impact stock valuations, affecting TSPFX.US. Higher rates can lead to lower valuations.

Economic Data: Key economic indicators like GDP growth, inflation, and employment figures influence market sentiment and, consequently, the price of TSPFX.US.

Company Performance: The performance of the underlying companies within the fund's portfolio directly affects its value. Strong earnings reports typically lead to higher prices.

Sector Performance: The performance of specific sectors represented in the fund's holdings, like technology or healthcare, can influence TSPFX.US. Strong sector performance benefits the fund.

Geopolitical Events: Global events and political instability can create market uncertainty, affecting investor confidence and the value of TSPFX.US.

Fund Flows: Large inflows or outflows of money into or out of TSPFX.US can impact its price. High demand can drive up the price.

Inflation: Rising inflation erodes purchasing power and can affect company profits, potentially impacting TSPFX.US's value. Companies may struggle to maintain profitability.

Investor Sentiment: Investor confidence or fear can drive market movements, impacting TSPFX.US's price. Positive sentiment generally leads to increased buying.

Regulatory Changes: New regulations or government policies can impact specific industries or the economy as a whole, influencing the value of TSPFX.US.