Diamondback Energy stock heads into the open after a 1.1 percent gain

At the close on September 8, 2026, Diamondback Energy stock ended at USD 204.36, up 1.1 percent. Oil strength and a broader energy bid also helped the shares, while Nasdaq futures were firmer before the open.

Diamondback Energy stock closed at USD 204.36 on the Nasdaq on September 8, 2026, up 1.1 percent. The move came as energy shares drew support from higher oil prices and pre-market futures stayed firm before the open.

September 8, 2026 in numbers

Diamondback Energy Inc. (ISIN US25278X1090, Nasdaq: FANG) traded between USD 200.45 and USD 205.12 in the session, with volume of 2.28 million shares. The close sat above the day's midpoint and left the stock near the upper end of its recent range.

Investing.com said Diamondback Energy and Marathon Petroleum each climbed 1.1 percent in premarket trading on September 8, 2026, as oil-related names benefited from Iran tensions. Reuters reported that Brent crude futures closed close to USD 100 a barrel the same day, a backdrop that kept the energy trade bid.

Today before the bell

Before the open on September 9, 2026, futures linked to the Nasdaq were higher in early trade, with the Nasdaq Composite quoted at 26,421.41 in the latest pre-open market wrap. That matters for Diamondback Energy because energy stocks were already reacting to firmer oil and risk appetite in the prior session.