The broad market exchange-traded fund SPDR S&P 500 ETF Trust (SPY) was down 0.3%, and the actively traded Invesco QQQ Trust (QQQ) retreated 0.2% in Monday's premarket activity as the US and Iran exchanged attacks after almost a month's lull.

US stock futures were also lower, with S&P 500 Index futures down 0.2%, Dow Jones Industrial Average futures slipping 0.2%, and Nasdaq futures retreating 0.1% before the start of regular trading.

The Dallas Fed manufacturing survey for August will be released at 10:30 am ET.

In premarket activity, bitcoin was down by 1%. Among cryptocurrency ETFs, the cryptocurrency fund ProShares Bitcoin Strategy ETF (BITO) was 0.7% higher, Ether ETF (EETH) advanced 0.7%, and Bitcoin & Ether Market Cap Weight ETF (BETH) rose 4.8%

Power Play:

Energy

The iShares US Energy ETF (IYE) was up 1.5%, while the State Street Energy Select Sector SPDR ETF (XLE) gained 1.8%.

PG&E (PCG) stock was more than 18% lower following multiple analyst downgrades.

Winners and Losers:

Technology

The State Street Technology Select Sector SPDR ETF (XLK) retreated 0.5%, the iShares US Technology ETF (IYW) was 0.4% lower, and the iShares Expanded Tech Sector ETF (IGM) was down 0.3%. Among semiconductor ETFs, the State Street SPDR S&P Semiconductor ETF (XSD) was up 0.1%, while the iShares Semiconductor ETF (SOXX) rose by 0.01%.

Science Applications International (SAIC) stock was up 12% after the company reported higher fiscal Q2 revenue and raised its fiscal 2027 outlook.

Consumer

The State Street Consumer Staples Select Sector SPDR ETF (XLP) was down 0.2%, the Vanguard Consumer Staples Index Fund ETF Shares (VDC) retreated 0.1%, and the iShares US Consumer Staples ETF (IYK) was 0.03% higher. The State Street Consumer Discretionary Select Sector SPDR ETF (XLY) lost 0.5%. The VanEck Retail ETF (RTH) was inactive, while the State Street SPDR S&P Retail ETF (XRT) was down 0.1%.

GameStop (GME) shares were up more than 3% pre-bell after the company said it expects higher Q2 net income. The company also said that it agreed to amend several agreements with existing holders to exchange and cancel about $1.4 billion in 0% convertible senior notes due 2030 and 2032.

Financial

The State Street Financial Select Sector SPDR ETF (XLF) retreated 0.4%. Direxion Daily Financial Bull 3X Shares (FAS) was down 1.3%, while its bearish counterpart, Direxion Daily Financial Bear 3X Shares (FAZ), was 1.2% higher.

Aon (AON) stock was down 2% after it agreed to acquire insurance brokerage USI Insurance Services from KKR (KKR) and other shareholders in an all-cash deal worth roughly $17 billion. KKR shares were 1.2% higher.

Health Care

The State Street Health Care Select Sector SPDR ETF (XLV) advanced 0.3%, the Vanguard Health Care Index Fund (VHT) was down 0.1%, while the iShares US Healthcare ETF (IYH) slipped 0.1%. The iShares Biotechnology ETF (IBB) was 0.6% lower.

Alpha Tau Medical (DRTS) stock was down 1% premarket following a 1.2% decline in the prior session. The company said Monday it has completed patient enrollment in a study evaluating intratumoral Alpha DaRT combined with first-line chemotherapy in newly diagnosed, inoperable locally advanced or metastatic pancreatic adenocarcinoma.

Industrial

The State Street Industrial Select Sector SPDR ETF (XLI) retreated 0.6%, the Vanguard Industrials Index Fund (VIS) was down 1.1%, and the iShares US Industrials ETF (IYJ) was inactive.

SpaceX (SPCX) stock was nearly 1% lower premarket. NASA said Saturday the space agency and SpaceX are delaying their launch date for the Crew-13 manned mission to the International Space Station in order to address an oxidizer leak on the propulsion system of the Dragon spacecraft.

Commodities

Front-month US West Texas Intermediate crude oil rose by 3.5% to $86.31 per barrel on the New York Mercantile Exchange. Natural gas was down 0.7% at $2.87 per 1 million British Thermal Units. The United States Oil Fund (USO) advanced 2.9%, while the United States Natural Gas Fund (UNG) was 0.1% lower.

Gold futures for November were down by 0.9% at $4,488.70 an ounce on the Comex. Silver futures retreated 0.5% to $67.42 an ounce. SPDR Gold Shares (GLD) decreased 0.5%, and the iShares Silver Trust (SLV) was 0.3% higher.