Unusual Options Flow Detected in Erasca and Enphase Energy

Market data from April 28 reveals a surge in options trading for Erasca Inc (ERAS) and Enphase Energy Inc (ENPH), with volumes reaching a significant percentage of their respective average daily trading totals. Erasca Inc saw 41,309 contracts traded, equivalent to roughly 4.1 million underlying shares. This activity represents 58.2% of the stock's monthly average daily volume of 7.1 million shares. The volume was particularly concentrated in $15 strike call options expiring December 18, 2026, with 8,378 contracts changing hands, indicating a long-term bullish outlook from some market participants. Simultaneously, Enphase Energy Inc experienced a similar volume spike, with 36,228 contracts traded, or approximately 3.6 million shares. This volume accounts for 57.8% of its monthly average daily volume of 6.3 million shares. Unlike the activity in ERAS, the flow in ENPH was notably bearish. Heavy volume was recorded for $25 strike put options expiring May 1, 2026, with 11,137 contracts traded, representing 1.1 million underlying shares. This suggests traders are hedging against or speculating on a price drop in the immediate term. Such concentrated options activity often signals institutional positioning or anticipation of upcoming catalysts. However, the divergent nature of these trades reflects stock-specific expectations rather than a broader sector-wide trend.