Sector Performance: SPSM tracks the S&P 1500 Materials Sector. The overall health and performance of companies within the materials sector heavily influence its price.

Economic Conditions: Broad economic indicators like GDP growth, inflation, and interest rates impact the demand for materials and subsequently, SPSM's price.

Commodity Prices: Since materials companies deal with raw materials, price fluctuations in commodities like metals, chemicals, and timber affect their profitability and SPSM's value.

Supply Chain Issues: Disruptions in the global supply chain, whether due to geopolitical events or other factors, can impact material availability and prices, affecting SPSM.

Company-Specific News: Major news events related to large companies within the S&P 1500 Materials Sector can cause price fluctuations in SPSM.

Investor Sentiment: Overall investor confidence and risk appetite towards the materials sector can drive buying and selling pressure on SPSM, influencing its price.