Spruce Soars 1378% on 890M Dollar Surge to 129th-Most-Traded Stock Amid Mystery Catalyst

Spruce (SPRB) surged 1,378.46% on October 6, 2025, with a trading volume of $0.89 billion, marking a 426,588.38% increase from the prior day and ranking 129th in market activity. The dramatic price movement reflects intense short-term interest, though underlying catalysts remain unclear given the absence of disclosed corporate events or sector-specific developments in the provided data.

Back-test parameters for evaluating high-volume-driven trading strategies have been outlined, focusing on NYSE and NASDAQ-listed stocks. The methodology ranks securities daily by dollar trading volume, selecting the top 500 names for one-day holding periods. Execution assumes no transaction costs or slippage, with rebalancing occurring daily. The test window spans from January 3, 2022, to October 6, 2025, ensuring historical accuracy by including delisted securities to avoid survivorship bias.

Confirmation of these assumptions is required before proceeding. Adjustments to exchanges, entry timing, or cost structures can be incorporated upon request. The framework aims to isolate the performance of volume-based momentum strategies, offering insights into whether such approaches could have captured Spruce’s anomalous price action during the specified period.