To increase their likelihoods of product-market success, innovating firms use strategic signals to communicate with market participants in order to reduce participants' perceived uncertainties associated with their innovative products. We examine, during a standards war involving a technology-based product, the influence of technology-, market-, and standards-related strategic signals on the stock price of one of the product-market's technology leaders. A technology leader is defined as a firm that develops and promotes its proprietary product design to become industry standard. Using event study methodology, we find that a technology leader's market-and standards-related signals have significant positive influences on this leader's stock price; competitor technology leaders' technology-related and standards-related signals have significant negative influences, while these competitor leaders' market-related signals have a significant positive influence; and competitor technology followers' market-and standardsrelated signals lacked significant influences, while these followers' technology-related signals possessed a weak negative influence.