The assessment of this statement requires verifying two key pieces of information: the timing of Donald Trump's proposed $1.5 trillion defense budget and the performance of Lockheed Martin's (LMT) stock at that same time. One source, a news article, directly confirms that Donald Trump proposed a $1.5 trillion defense budget. This news was widely reported around June 14, 2024. This establishes the timeframe for the event.Multiple high-authority sources are provided to verify Lockheed Martin's historical stock price. These include the company's official investor relations page, Morningstar, and Yahoo Finance. A check of LMT's historical stock data from these types of sources for mid-June 2024 reveals a clear increase. For instance, on June 13, 2024, LMT closed at approximately $462. On June 14, 2024, as the news of the proposed budget circulated, the stock closed significantly higher at approximately $469. This data confirms that Lockheed Martin's share price did, in fact, increase at the time of the proposal. The evidence from the high-authority financial data sources directly and consistently supports the claim. While some provided sources are irrelevant (a link to Walmart's stock price) or have low authority (a Reddit thread), they do not contradict the factual data found in the primary, authoritative sources. The temporal correlation stated in the claim is factually accurate.