Constellation Energy (NASDAQ:CEG) experienced a significant decline on Tuesday, closing down 4.22% at $248.37, as market participants digested the implications of the Calpine lock-up expiration. This drop came despite a broader market rally, with the S&P 500 gaining 0.79% and the Dow Jones Industrial Average adding 0.26%.
The stock's recent performance has been notably weak. Over the past two trading sessions, CEG has fallen by a compounded 5.9%, with a 1.78% decline on Monday followed by Tuesday's sharper 4.22% drop. In contrast, the S&P 500 rose approximately 2.0% during the same period, highlighting the stock's underperformance.
Since its secondary public offering on June 1 at $281 per share, CEG has fallen 11.6%. Additionally, the stock is trading 11.0% below the $279 per share that Constellation paid in its block buyback, underscoring the pressure from potential additional supply.
Lock-Up Dynamics and Supply Concerns
The primary catalyst for the sell-off appears to be the expiration of the lock-up agreement related to the Calpine acquisition. Under the terms of the registration rights agreement, former Calpine holders received 50 million new Constellation shares. Half of these shares became eligible for sale on June 30, 2026, with the remaining half set to be released on June 30, 2027.
However, the immediate supply may be less dramatic than some headlines suggest. While initial reports mentioned a 25 million-share lock-up, the prospectus indicates that only up to 5.118 million shares could be sold after the lock-up expiration. This near-term eligible block represents about 1.4% of the 357.1 million shares outstanding and is roughly equivalent to one day's trading volume, based on Tuesday's 5.02 million shares traded.
Constellation CFO Shane Smith addressed the lock-up during the company's May earnings call, noting that the company was seeking flexibility around the event but could not comment on the holders' plans.
Buyback and Market Context
On June 1, selling holders agreed to sell 11 million shares in the secondary offering, with an additional 1.35 million shares potentially available if underwriters exercise their option. Constellation did not participate as a seller and received no proceeds from the offering. However, the company did repurchase 2 million shares from the underwriters for $558 million, leaving approximately $3.5 billion available for future buybacks.
Despite the negative price action, Constellation's fundamentals remain tied to its power generation assets and the Calpine acquisition. CEO Joe Dominguez emphasized a focus on execution, while CFO Smith highlighted the company's strong, visible cash flow. The company has maintained its 2026 adjusted operating earnings forecast of $11 to $12 per share.
The company's filing also cautioned that additional share sales, or even the expectation of such sales, could continue to pressure the market price of its common shares. This warning appears to be materializing as the market adjusts to the new supply dynamics.
