Ainvest Option Flow Digest - 2026-04-14: 🚨 $401M Memory Supercycle Bet Headlines 9-Ticker Flow — SNDK's $287M LEAP Spread Is the Biggest Single-Stock Trade of 2026

$401M in institutional option flow dominated by SNDK's $287M LEAP spread — the biggest single-stock options bet of 2026. Plus SPY $50M bear put spread, IWM $27M contrarian bull bet, MU $11.4M HBM4 calls. Memory supercycle meets earnings hedging. Full breakdown inside.