Synopsys Gains 1.93% as $0.73 Billion Volume Slumps to 167th Rank Amid Tech Sector Rotation

Synopsys (SNPS) rose 1.93% on October 6, 2025, with a trading volume of $0.73 billion, marking a 33.09% decline from the previous day’s volume. The stock ranked 167th in trading activity among U.S.-listed equities, reflecting a mixed liquidity profile despite the upward price movement.

Analysts noted that the modest gain occurred amid a broader market consolidation phase, with investors rotating into technology sectors showing resilience in R&D-driven plays. Synopsys’ performance aligned with sectoral trends but lagged behind peers in terms of volume participation, suggesting limited short-term catalysts for sustained momentum.

The back-test parameters outlined below require clarification to ensure accuracy: 1. **Universe**: Should the ranking include all U.S. common stocks, S&P 500 constituents, or another defined universe? 2. **Ranking metric**: Is volume calculated by share count or dollar value (shares × price)? 3. **Trade execution**: Are trades executed at the close of the purchase day and sold at the close of the next day, or opened and closed on the same day? 4. **Portfolio weighting**: Will the strategy apply equal weights across all 500 stocks daily, or use value-weighted allocations (e.g., proportional to dollar volume)? 5. **Transaction costs**: Should slippage and fees be factored into the analysis, or excluded for simplicity?

Clarifying these parameters will determine the back-test’s relevance to Synopsys’ liquidity dynamics and broader market conditions observed on October 6.