In this article, we will look at the 5 Stock Market Casualties You Can’t Ignore Today. For a deeper discussion and an extended list, please see 10 Stock Market Casualties You Can’t Ignore Today.

5. The Mosaic Company (NYSE:MOS)

The Mosaic Company fell for a third day on Friday, slashing 9.96 percent to close at $23.59 apiece, as investors took path from Bank of America’s (BofA) downgraded rating for its stock amid the impact of the ongoing tensions in the Middle East.

In a market note, BofA turned neutral for The Mosaic Company (NYSE:MOS), after issuing a “buy” recommendation previously, citing inflation in raw materials due to the Iran war.

While BofA remains bullish about the phosphates market, with prices expected to remain elevated over time, the war in the Middle East could cause inflationary pressures on sulfur and ammonia, which could dent The Mosaic Company’s (NYSE:MOS) earnings growth and cash flow moving forward.

In other news, The Mosaic Company (NYSE:MOS) earlier this month announced efforts to ramp up expansion into rare earths production with its planned development of the Uberaba mine site in Brazil.

The initiative will be made through its subsidiary, Mosaic Fertilizantes P&K Limitada, in partnership with Rainbow Rare Earths Ltd.

The two parties have already completed an economic assessment for the site, which indicated a processing potential of 2.7 million tons of phosphogypsum per year; 1,900 tons of separated neodymium and praseodymium oxide; and 600 tons of a samarium, europium, and gadolinium product rich in medium and heavy rare earth elements.

4. Constellation Energy Corp. (NASDAQ:CEG)

Constellation Energy dropped its share prices by 10.90 percent on Friday to close at $281.99 apiece, as investor sentiment was dampened by a combination of price target downgrades and broader market pessimism.

In a market note, JPMorgan slashed its price target for Constellation Energy Corp. (NASDAQ:CEG) to $400 from $410 previously, but maintained an “overweight” rating for its stock.

In other developments, Constellation Energy Corp. (NASDAQ:CEG) mirrored a wider market sentiment, with Wall Street’s three main indices all finishing in the red, after President Donald Trump’s announcements suggesting that the US and Israel’s war on Iran is far from over. According to Trump, he was not at all interested in a ceasefire with Iran.

Uncertainties aside, Constellation Energy Corp. (NASDAQ:CEG) on Wednesday raised $5 billion in fresh funds following the successful sale of approximately 4.4 gigawatts of natural-gas-fired generation capacity in Delaware and Pennsylvania.

The sale forms part of its compliance with the Department of Justice’s requirements following an antitrust review of its acquisition of Calpine Corp., the largest natural gas producer in the US.

“This transaction is an important step in satisfying the DOJ’s requirements and advancing our path forward,” said Constellation President and CEO Joe Dominguez.

“These are well-run facilities that will continue powering consumers and businesses for decades to come. We’re pleased to be moving ahead and expect to complete the remaining DOJ requirements later this year.”

3. Vistra Corp. (NYSE:VST)

Vistra Corp. fell by 12.64 percent to close at $146.02 apiece, as investors sold off positions after the cutoff date of its next dividend payment.

Last month, Vistra Corp. (NYSE:VST) announced the distribution of quarterly dividends amounting to $0.2280 per share to all common shareholders of record as of March 20, 2026, payable on March 31.

Additionally, holders of Vistra Corp.’s (NYSE:VST) “8 percent Series A Fixed-Rate Reset Cumulative Redeemable Perpetual Preferred Stock” of record as of April 1, 2026, are set to receive $40 for every stock they own on April 15.

The dividends are paid semi-annually, bringing the total annual dividend payout to $80 per share.

The dividends followed the results of its earnings performance last year, with full-year net income shrinking by 66 percent to $944 million from $2.812 billion in 2024. Operating revenues dipped by 3 percent to $17.7 billion from $17.2 billion year-on-year, while adjusted EBITDA declined by 5.3 percent to $5.9 billion from $5.6 billion.

In the fourth quarter alone, Vistra Corp. (NYSE:VST) netted $233 million, or 52 percent lower than the $490 million in the same quarter a year earlier. Adjusted EBITDA decreased by 14 percent to $1.7 billion from $1.9 billion year-on-year.

2. Applied Optoelectronics Inc. (NASDAQ:AAOI)

Applied Optoelectronics fell by 14.11 percent on Friday to close at $87.54 apiece amid a combination of profit-taking and a broader market pessimism, thanks to the ongoing tensions in the Middle East.

The drop can also be attributed to profit-taking activities, as investors turned sellers following a two-day rally that saw the company add an easy 18 percent, while mitigating risks from any potential developments over the weekend.

Earlier this week, Applied Optoelectronics Inc. (NASDAQ:AAOI) showcased a comprehensive range of transceiver products designed for future AI systems, from 100G to 1.6T, as well as its next-generation 400mW laser Continuous Wave (CW) for 25dBm external laser small form-factor pluggable (ELSFP).

The 25dBm Ultra-High Power ELSFP provides a critical high-link-budget foundation required for CPO/NPO architectures, and features extreme power with a hot-swappable, highly serviceable design to ensure reliability for mission-critical GPU clusters.

Additionally, Applied Optoelectronics Inc. (NASDAQ:AAOI) showcased its 6.4T On-Board Optics (OBO) and 800G and 1.6T Optical Interconnects through a live demonstration.

Powered by its 400mW external laser small form-factor pluggable (ELSFP), the 6.4T OBO provides an immediate, high-density solution for the signal integrity needs of hyperscale AI infrastructure, while the 800G and 1.6T Optical Interconnects provide the scalable bandwidth necessary to support evolving large language models and intensive AI training workloads.

1. Super Micro Computer Inc. (NASDAQ:SMCI)

Super Micro plunged by 33.32 percent on Friday to close at $20.53 apiece as investors unloaded portfolios after the US charged and arrested one of its co-founders for allegedly running a scheme to route US-made servers through Taiwan to Southeast Asia.

US prosecutors indicted Yih-Shyan “Wally” Liaw for violating US export controls, particularly for sending US-assembled servers containing Nvidia Corp.’s cutting-edge chips to China and selling the hardware to an unnamed Southeast Asian company for sale to Chinese customers.

Two others—sales manager Ruei-Tsang Chan and contractor Ting-Wei Sun—were similarly charged.

Following the arrest, Super Micro Computer Inc. (NASDAQ:SMCI) announced that Liaw had already resigned from the board of directors effective immediately, but it had already lost $6 billion of its market value during the day.

“The conduct by these individuals alleged in the indictment is a contravention of the Company’s policies and compliance controls, including efforts to circumvent applicable export control laws and regulations. Supermicro maintains a robust compliance program and is committed to full adherence to all applicable U.S. export and re-export control laws and regulations,” Super Micro Computer Inc. (NASDAQ:SMCI) said in a statement.

It underscored that it has not been named as a defendant in the indictment.

While we acknowledge the potential of SMCI to grow, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and have limited downside risk. If you are looking for an AI stock that is more promising than SMCI and that has 100x upside potential, check out our report about the cheapest AI stock.

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