Uber's $1.31 Billion Surge Propels It to 52nd in Market Activity Amid Strategic Cost Cuts and Emerging Market Expansion

Uber (UBER) surged 1.28% on Sept. 12, 2025, , ranking 52nd in market activity. The ride-hailing giant's shares saw renewed investor interest amid strategic updates and operational adjustments that positioned the stock for short-term momentum.

Analysts noted that recent operational metrics highlighted cost optimization efforts, including reduced driver incentives and improved unit economics, which bolstered investor confidence. The company's focus on expanding delivery services in emerging markets also contributed to positive sentiment, though long-term challenges remain in sustaining profitability amid competitive pressures.

To run this back-test robustly I need to pin down a few practical details: 1. Universe — Which market/universe should the “top-500-by-volume” be selected from? 2. Weighting & sizing — Do you want the 500 names held with equal weights each day? 3. Frictions — Ignore transaction costs and slippage, or apply an estimate (e.g., ? 4. Benchmark — Any preferred benchmark to compare results against (e.g., SPY)? Once I have these details I’ll generate the data-gathering plan and run the back-test.