Lockheed Martin Corporation (LMT) closed Thursday at $571.75, shedding 3.00% on the day as selling pressure weighed on the aerospace and defense name. The decline extended a rough stretch for the stock, which has now lost 4.43% over the trailing seven-day period.
Despite the near-term weakness, Lockheed Martin retains meaningful ground gained over a broader timeframe. The shares are still up 12.75% over the past 30 days, reflecting a period of notable strength that preceded this week's pullback.
The company's market capitalization stands at $135.97 billion as of August 21, 2026, keeping Lockheed Martin among the largest defense contractors by market value. The session's move trimmed but did not erase the month's accumulated gains.
Trading activity on the day illustrated the tension between the stock's longer-term momentum and shorter-term selling. Whether the 30-day advance provides a durable floor for LMT remains to be seen as the market digests the recent price action.
