Constellation Energy (CEG) Stock Drops 11% — Three Reasons Behind the Decline

TLDR

• CEG ended the day at $281.99, a 10.9% decline, significantly steeper than the S&P 500’s 1.51% drop
• Large tech hyperscalers are said to be scaling back on major power purchase agreements, damping demand forecasts
• A proposed federal rate cap in the PJM mid-Atlantic market might restrict how much CEG can charge for electricity
• A chemical spill at a Constellation facility resulted in employees being hospitalized, raising operational worries
• Analysts continue to forecast Q1 EPS of $2.70, a 26% increase from the prior year, along with full-year revenue of $38.71 billion

(SeaPRwire) –   Constellation Energy (CEG) had a tough Thursday, falling 10.9% to finish at $281.99. That’s a sharp decline, particularly on a day when the wider market was already unstable.

Constellation Energy Corporation, CEG

The selling momentum stemmed from several sources simultaneously, all of which were significant.

The most significant impact came from reports that major tech firms are reversing some of their power purchase commitments. These agreements had been a key part of CEG’s growth strategy, especially its AI data center focus.

Without that growth driver, investors began questioning whether the stock warranted its premium valuation.

Regulatory news further intensified the selloff. A proposed federal rate cap in the PJM mid-Atlantic power market — where Constellation runs a substantial portion of its nuclear plants — could cap the company’s electricity pricing.

This directly impacts revenue potential, and the market quickly factored this in.

Chemical Leak Adds to the Pressure

Then there was the operational update. A chemical leak at a Constellation facility led to employees being taken to the hospital, adding a level of concern beyond just financial matters.

While not catastrophic in size, the timing was poor. When confidence in a growth story is already wavering, an incident like this doesn’t help.

All three pressures — demand uncertainty, regulatory risk, and operational problems — hit on the same day.

Analyst Estimates Still Hold

Despite the selloff, analyst forecasts for the company haven’t changed much. Q1 EPS is still projected to be $2.70, a 26% rise from the same quarter a year ago.

Full-year estimates anticipate earnings of $11.63 per share on $38.71 billion in revenue — a 51.6% year-over-year revenue increase if met.

The Zacks consensus EPS estimate has actually increased by 2.41% over the last month, and CEG currently has a Zacks Rank of #3, which denotes a Hold.

The forward P/E ratio is 27.22 — above the industry average of 18.86 — indicating the stock was valued for growth prior to this week’s developments.

The PEG ratio of 1.77 is lower than the Alternative Energy sector’s average of 2.0, providing some buffer.

It’s also important to note that even after Thursday’s decline, CEG was up 8.51% over the previous month — meaning the stock had been performing well leading up to this.

Year-to-date performance is now -10.3%, showing how steep the reversal has been in 2026.

Investors will be closely monitoring the upcoming earnings report to see if the company addresses the power deal issue and provides an update on the facility incident.