Diamondback Energy stock falls 8 percent after $1.9 billion shareholder sale

Published on 09/17/2026 at 21:40 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Diamondback Energy stock dropped 8.03 percent to USD 194.54 on September 16, 2026 after a USD 1.9 billion block sale by its largest shareholder. Analyst Raymond James still raised its price target to USD 255.00 per share on September 17, 2026, keeping a Strong Buy rating.

Extreme Makroaufnahme von Rohöltropfen auf rauer Sandsteinoberfläche im Texas-Schiefergestein — Diamondback Energy US25278X1090 Rohöl als Makroaufnahme auf porösem Sandstein aus dem Permian Basin, Illustration mit AI erstellt.

Diamondback Energy stock (ISIN US25278X1090) closed at USD 194.54 on September 16, 2026 on Nasdaq, down 8.03 percent in one session after a USD 1.9 billion block sale by its largest shareholder and a pullback in crude oil prices.

Large block trade hits the share price

According to Wall Street Journal on September 16, 2026, Diamondback Energy’s shares fell about 8 percent after SGF Capital, a family office linked to oil heiress Autry Stephens, sold roughly USD 1.9 billion worth of stock in an unregistered block trade.

As Investing.com reported on September 16, 2026, SGF Capital sold about 9.1 million Diamondback Energy shares at USD 205.80 each, a 2.7 percent discount to the prior closing price of USD 211.53, reducing its ownership to roughly 23 percent of the company.

Diamondback Energy stock’s 8.03 percent decline to USD 194.54 on September 16, 2026 came in a broader energy selloff following the Federal Reserve’s interest rate decision and falling crude prices, according to Seeking Alpha.

Valuation and recent operating milestones

On September 16, 2026, the share price of Diamondback Energy at USD 194.54 sat within a 52-week trading range of USD 135.59 to USD 216.90, meaning the stock traded about 43.5 percent above the 52-week low and roughly 10.3 percent below the 52-week high, as highlighted by GuruFocus.

The same analysis from GuruFocus on September 16, 2026 estimated a fair value, or GF Value, of USD 210.18 per share for Diamondback Energy, implying the stock at USD 194.54 was about 7.4 percent below that valuation benchmark.

Beyond the short-term price pressure, Diamondback Energy has recently delivered strong operating momentum: according to a summary on MarketBeat dated August 20, 2026, the company reached production of more than 1 million barrels of oil equivalent per day, posted record quarterly revenue and earnings, raised its guidance, and doubled its share buyback program.

Analyst consensus remains constructive: based on data compiled by MarketBeat on September 17, 2026, Diamondback Energy carries an average rating of Moderate Buy with an average price target of USD 224.55 per share.

Raymond James raises price target despite volatility

As Dow Jones Newswires via TradingView reported on September 17, 2026, Raymond James maintained its Strong Buy rating on Diamondback Energy stock and raised its price target to USD 255.00 per share from USD 248.00.

The Raymond James move lifts its target by USD 7.00 per share, or about 2.8 percent, and puts the new target roughly 31.0 percent above the September 16, 2026 closing price of USD 194.54, underlining how at least one major analyst house views the post-selloff level as an opportunity rather than a warning signal.

Meanwhile, the average price target of USD 224.55 per share compiled by MarketBeat stands about 15.4 percent above the USD 194.54 closing price, suggesting that, even after the block trade, consensus still expects upside over the medium term.

Stock level and investor perspective

Per data on September 17, 2026 from GuruFocus, Diamondback Energy stock’s USD 194.54 close on Nasdaq on September 16, 2026, within a 52-week range of USD 135.59 to USD 216.90, leaves the shares trading closer to the upper end of their yearly band but still below recent highs, as investors digest both the large shareholder sale and changing interest rate conditions.