Noteworthy Friday Option Activity: ALAB, MP, RKLB

MP Materials saw options volume of 36,436 contracts (≈3.6 million underlying shares), about 60.5% of its one‑month average daily volume of 6.0 million shares, led by concentration in the $48 put expiring Jan. 23, 2026 (2,099 contracts, ≈209,900 shares). Rocket Lab recorded 166,453 contracts (≈16.6 million underlying shares), roughly 60.5% of its one‑month average daily volume of 27.5 million shares, with heavy activity in the $70 put expiring Mar. 20, 2026 (13,027 contracts, ≈1.3 million shares); the large put flows point to notable bearish positioning and could increase near‑term volatility in both names.

Analysis

Market structure: Large put volume in MP (Jan 23, 2026 $48, ~209.9k shares) and RKLB (Mar 20, 2026 $70, ~1.3M shares) — each representing ~60.5% of one‑day ADTV — signals directional hedging/positioning pressure rather than fundamental news. Immediate mechanics: dealers short net put exposure will likely hedge by selling underlying stock, amplifying downside flow into equities and lifting implied volatility and skew; market‑makers and options sellers are the direct liquidity providers and fee earners. Commodities (rare earths linked to MP) and aerospace supply chains (RKLB) are unlikely to move on option flow alone, but elevated equity vol can tighten credit spreads and push risk‑off FX flows into USD safe haven shorts.

Risk assessment: Tail risks differ — MP faces regulatory/geopolitical tail risk (export controls, permit delays) that can re-rate cashflows materially; RKLB carries operational tail risk (launch failure, contract cancellations) and dilution risk from cash burn. Time horizons: delta‑hedging pressure is immediate (days), IV re‑pricing and expiries matter in the next 1–6 months, while fundamentals (rare earth demand, government contracts, launch cadence) play out over 6–24 months. Hidden: large option blocks can be portfolio insurance (non‑directional) or spreads; monitor if block trades correlate with institutional filings or index rebalance windows which would change interpretation.

Trade implications: For RKLB the concentrated put flow argues for a defined‑risk bearish options trade rather than naked short shares; consider buy Mar 20, 2026 70/40 put spreads sized 0.75–1.5% portfolio to capture downside convexity while limiting cash exposure. For MP, option activity may present a buying opportunity on weakness given US on‑shoring policy tailwinds; establish 1.5–3% long on a confirmed 2‑day close below $48 with stop ~15% and 6–12 month target +30%, or hedge longs with Jan 23, 2026 48/38 put spreads. Use IV percentile, put/call skew and OI/volume ratio as trade gating metrics.

Contrarian angles: The flow may be overstated — heavy put volume can be portfolio insurance by institutions, not pure directional bearishness; treating these prints as guaranteed sell signals is risky. Historical parallels: concentrated put buying in small caps has preceded both squeezes and collapses depending on liquidity; the key mispricing is in skewed IV, not price alone. Unintended consequence: crowded put‑buying can create dealer gamma exposure that exacerbates rallies, so set tight stops and layer positions rather than all‑in.

Key Decisions for Investors

• RKLB: Initiate a tactical bearish defined‑risk position by buying the Mar 20, 2026 70/40 put spread sized at 0.75–1.5% of portfolio; exit if RKLB > $90 for three consecutive sessions, or if IV drops below its 40th percentile for 10 trading days; cap max loss = premium paid.
• MP: Build a strategic 1.5–3% long position in MP on a confirmed 2‑day close below the $48 Jan 23, 2026 put strike; set an initial stop at 15% below entry and a target of +30% over 6–12 months, or hedge by buying the Jan 23, 2026 48/38 put spread if downside risk is unacceptable.