Why ArcelorMittal (MT) Stock Is Down Today

ArcelorMittal (MT) is down 4.7% today. Here is some analysis on what might have caused this price movement.

Analysis: The most likely catalyst is ArcelorMittal’s August 17 update that a missile strike damaged key production infrastructure at its Ukraine plant and partially halted operations there. The pullback may also reflect investors de-risking after a strong recent run, even though the company’s late-July results and second-half shipment outlook were broadly constructive.

Details:

ArcelorMittal said its Kryvyi Rih operation in Ukraine suffered a missile strike over the weekend, causing fatalities and injuries and damaging main energy and blast furnace facilities.

The company said production processes at the plant were partially halted while specialists assess the damage and the timeline for restoring operations.

In its second-quarter results, ArcelorMittal had pointed to stronger European momentum, stable to slightly higher third-quarter European shipments, and expectations that second-half volumes would exceed first-half levels.

That contrast between improving underlying demand and a sudden operational disruption likely made the Ukraine news the more immediate focus for traders today.

Sources:

ArcelorMittal, SEC, S&P Global

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$MT Hedge Fund Activity

We have seen 149 institutional investors add shares of $MT stock to their portfolio, and 174 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

FMR LLC added 9,833,857 shares (+631.4%) to their portfolio in Q2 2026, for an estimated $592,194,868
CASTLE HOOK PARTNERS LP added 1,290,147 shares (+inf%) to their portfolio in Q2 2026, for an estimated $77,692,652
BANK OF MONTREAL /CAN/ removed 789,829 shares (-85.9%) from their portfolio in Q2 2026, for an estimated $47,563,502
MAPLE ROCK CAPITAL PARTNERS INC. added 776,595 shares (+54.9%) to their portfolio in Q2 2026, for an estimated $46,766,550
STEADFAST CAPITAL MANAGEMENT LP removed 595,047 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $30,930,543
MAN GROUP PLC added 529,333 shares (+233.2%) to their portfolio in Q2 2026, for an estimated $31,876,433
MORGAN STANLEY removed 503,844 shares (-25.1%) from their portfolio in Q2 2026, for an estimated $30,341,485

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$MT Congressional Stock Trading

Members of Congress have traded $MT stock 1 times in the past 6 months. Of those trades, 1 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $MT stock by members of Congress over the last 6 months:

SENATOR ALAN ARMSTRONG purchased up to $15,000 on 03/30.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard. You can access data on congressional stock trades through the Quiver Quantitative API Congress trades endpoint.

$MT Analyst Ratings

Wall Street analysts have issued reports on $MT in the last several months. We have seen 0 firms issue buy ratings on the stock, and 1 firms issue sell ratings.

Here are some recent analyst ratings:

JP Morgan issued a "Underweight" rating on 03/09/2026

To track analyst ratings and price targets for $MT, check out Quiver Quantitative's $MT forecast page.

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.