Tesla Shares Surge 7.4% on September 15 Amid Heavy Trading

Lead: Tesla (NASDAQ: TSLA) stock climbed 7.4% to close at $395.94 in New York trading on Monday, September 15, 2025, on the back of a broad market rally and exceptionally high volume.

Nut Graf: The sharp one-day gain marks Tesla’s strongest performance in over a month, as investors piled into EV names following renewed optimism in tech shares. The uptick underscores robust demand and renewed confidence in Tesla’s growth trajectory despite a lofty valuation.

Key Metrics

Closing price: $395.94 (+27.13; +7.36%)
After-hours price: $422.00
Daily trading volume: 168.2 million shares ($66.58 billion dollar volume)
Market capitalization: $1.277 trillion
P/E ratio: 238.5

Market Context

Tesla’s rally came in step with a broader advance in technology and growth stocks, as the S&P 500 tech sector rose 1.8%. Investor sentiment was bolstered by strong retail sales data and optimism over potential interest-rate cuts by the Federal Reserve later this year.

Trading Dynamics

Trading in Tesla was characterized by large block orders in early afternoon sessions, driving the stock from a low of $370.50 to an intraday high of $400.00. The stock’s after-hours pop toward $422.00 points to continued momentum ahead of Tesla’s next earnings report.

Looking Ahead

Analysts expect Tesla’s share price to remain volatile as the company prepares to announce third-quarter delivery figures later this week. Market watchers will focus on production outlook at the new Mexico Gigafactory and margins in its energy-storage division.