Notable Monday Option Activity: OSCR, ZETA, ABR

Zeta Global (ZETA) saw 38,288 option contracts trade today (≈3.8M underlying shares), equal to about 68.2% of its one‑month average daily volume; the most active contract was the $25 call expiring Jan. 9, 2026 with 3,854 contracts (~385,400 shares). Arbor Realty Trust (ABR) recorded 22,891 option contracts (≈2.3M shares), about 67.4% of its one‑month ADV, concentrated in the $8.50 Jan. 9, 2026 call with 16,936 contracts (~1.7M shares). These flows represent sizable directional positioning and elevated derivatives activity that could affect intraday liquidity and price action in both names.

Analysis

Market structure: The outsized front‑month call flow in ZETA (3,854 contracts) and ABR (16,936 contracts) equals ~68% of each name’s ADV and creates material short‑gamma for dealers into Jan 9 expiry. Immediate winners are long equity holders and option buyers if stocks gap higher pre‑expiry; primary losers are short equity and naked call sellers who must buy stock to hedge. The delta‑hedging mechanics can amplify price moves over the next 1–5 trading days, and volume-to‑ADV ratios (~0.68) imply price impact similar to a large buy block.

Risk assessment: Tail risks include a forced gamma squeeze (rapid >15–30% intraday moves) and regulatory/insider‑info risk if block buyers had material nonpublic information; for ABR, an unexpected dividend announcement or REIT guidance would be a second‑order shock. Time horizons split cleanly: immediate (days) dominated by hedging flows and IV re-rating; short‑term (weeks) driven by earnings/credit spreads and rates; long‑term (months) by fundamentals (ZETA ad spend, ABR portfolio yield). Hidden dependency: much of flow may be part of structured spreads or corporate hedges (not pure directional), so price moves can reverse post‑expiry.

Trade implications: For tactical front‑month plays, favor defined‑risk bullish structures to capture squeeze without unlimited downside — e.g., ZETA Jan 9 25/28 call debit spread and ABR Jan 9 8.5/11 call debit spread sized 1–3% NAV each, trim at +30% P/L or if underlying closes below strike by >5% before expiry. Conversely, prepare to sell short‑dated calls (or buy puts) after expiry if IV collapses >20% vs 30‑day average and momentum fades; consider short ABR vs long AGNC/other agency mREITs only if fundamentals diverge.

Contrarian view: Consensus treats the blocks as pure directional bullish bets — that may be overstated. Historically (gamma events like Feb‑2021), large front‑month activity can create transient spikes that reverse once dealer hedges unwind; absent fresh fundamentals, post‑expiry mean reversion of 10–25% is plausible. Unintended consequence: buying on the squeeze into expiry often leaves late buyers holding expensive, illiquid options/stock after IV collapses; prioritize defined‑risk entries and strict exit rules within 1–7 days.

Key Decisions for Investors

• Establish a tactical, defined‑risk long in ZETA: buy Jan 9, 2026 25/28 call debit spread sized 1–2% NAV (max loss = premium). Close if spread +30% or if ZETA closes < $23 (≈10% below strike) before expiry.
• Establish a tactical, defined‑risk long in ABR: buy Jan 9, 2026 8.5/11 call debit spread sized 2–3% NAV. Take profits at +30% or cut at −20% intraday; if ABR trades >+10% pre‑expiry, scale out 50% to capture delta‑hedge flow.
• Prepare a short‑volatility reversion trade post‑expiry: if IV for ZETA or ABR falls >20% vs 30‑day average within 2 trading days after Jan 9, sell short‑dated calls (cash‑secured) equal to 1–2% NAV, or sell call credit spreads for defined risk.
• Do not hold directional positions through either company’s next earnings or dividend announcement; monitor insider/13D filings 0–7 days after Jan 9 and cut exposure immediately on any new material disclosure (threshold: >5% ownership change).