CRLs Trading Volume Surges 114% to 340M Ranking 353rd as Stock Gains 147% Amid Mixed Technical Signals

Charles River Laboratories International Inc. (CRL) saw its trading volume surge to $340 million on August 13, 2025, a 114.28% increase from the previous day, ranking it 353rd in market activity. The stock closed up 1.47% at $152.75, reflecting modest momentum amid mixed technical signals.

Technical analysis highlights a short-term upward trend with the stock nearing a critical support level at $150.33. While increased trading volume aligns with price gains, conflicting signals from moving averages and a negative MACD suggest caution. Resistance levels at $155.13 and $159.57 could trigger further buying interest if breached, though the stock remains vulnerable to downward corrections given its proximity to key support.

Volatility remains elevated, with a 3.33% intraday swing on August 12 and an average daily volatility of 4.27% over the past week. Analysts note the stock's high-risk profile, with a recommended stop-loss absent due to the mixed technical outlook. Short-term expectations project a trading range of $149.55–$155.95 for August 13, with potential for a 4.27% move from the previous close.

Backtesting of a volume-based trading strategy (buying top 500 high-volume stocks and holding for one day) from 2022 to 2025 showed a 0.98% average daily return and cumulative 31.52% gain over 365 days. This underscores the strategy's ability to capture short-term momentum while reflecting inherent market volatility and timing risks.