Boeing Co Shares Plummet 6.9% Amid Valuation Debate

Boeing Co (BA) shares fell by 6.9% on September 28, 2026, closing at $184.39 in a challenging trading environment.

The stock has struggled this year, down 15.1% year-to-date and 16.7% over the past year.

The GF Value estimate of $210.84 suggests that Boeing is undervalued by approximately 12.5%, but relying solely on earnings-based metrics like P/E can be misleading due to its current unprofitability and cash-flow negativity.