SPY Flow Report

Analysis based on market close April 9, 2026

Directional Theta Gang Flow Earnings Consensus

Flow Verdict

Confidence:

7.5 / 10

base 5; +2 GEX/flow strongly aligned; +1 GEX positive (pinning); -0.5 spot 4.0% from MP

Watch next session: Net call premium at $677/$680 — sustained lift or unwind; Large put prints around $650-$675 that flip net premium negative

Flow Summary

Net premium: +$217.9M bullish

P/C volume ratio: 1.71 — volume skewed to puts today (put-heavy by volume)

P/C OI ratio: 2.17 — overall OI is put-heavy (deeper put positioning versus calls)

Flow shows heavy net premium into calls concentrated at/just below spot (notably $677, $685, $695) while open interest remains dominated by deep put clusters (most large OI at $630, $615, $640 and the structural put floor $495-$630). Dealer GEX is strongly positive (+$1.2B) and near-term GEX concentration pins between $675-$680, producing a pinning regime where short-dated call buying is holding spot near $679.91 despite larger put OI further out.

Notable Prints

SPY 2026-04-13 $677 Call

Vol: 83,972

OI: 75,516

Vol/OI: 1.1x

IV: 13.8%

Notional: ~$73,075,649 (top premium flow figure)

Intent: Fresh directional call buying / speculative directional positioning into near-term expiries

Dual read: Aggressive outright call buys (bullish) or large blocks structured/traded vs stock (could be dealers/clients creating spreads)

Read-through: Large, concentrated call premium at $677 aligns with dealer GEX pinning at $675-$680 and is the single most significant short-term bullish pressure point. This print is large enough to move dealer hedges and sustain spot near current levels.

SPY 2026-04-13 $685 Call

Vol: 127,814

OI: 94,481

Vol/OI: 1.4x

IV: 11.7%

Notional: ~$61,132,886 (top premium flow figure)

Intent: Directional call accumulation / upside hedge by institutions

Dual read: Overt bullish purchases or calls sold as part of call-spread structures (less gamma for sellers)

Read-through: Large activity out to $685 reinforces a short-term skew to upside option exposure; combined with the $677 activity this suggests institutions/flow players are loading calls across the spot band rather than only selling premium.

SPY 2026-04-10 $680 Put

Vol: 112,893

OI: 1,316

Vol/OI: 85.8x

IV: 15.8%

Notional: ~$25.9M (112,893 * $2.29 * 100)

Intent: Short-dated directional puts into expiration (4/10) — expiry-driven positioning or cash-secured hedges

Dual read: Client buying puts (bearish/hedge) OR closing/rolling trades around expiry executed in big blocks (neutral if part of expiration churn)

Read-through: Very large same-day volume vs small OI indicates expiry-driven flow — this creates short-term downward gamma for dealers if buys are net, but the prevailing GEX +1.2B and concentrated call premium likely have offsetting pin forces near $675-$680.

SPY 2026-04-10 $679 Put

Vol: 85,899

OI: 473

Vol/OI: 181.6x

IV: 16.1%

Notional: ~$15.97M (85,899 * $1.86 * 100)

Intent: Same-session expiration put activity — likely short-dated hedging or expiry positioning

Dual read: Overnight bearish bets or intra-day/expiry-driven positioning (could be dealers facilitating flow)

Read-through: Extremely high vol/OI signals this is predominantly expiration-centric flow and less a durable structural shift in longer-dated positioning.

Institutional Positioning

Call additions: Material call premium concentrated at $675-$695 (notably $677, $680, $685, $695) across the next two expirations — active buying/accumulation at/just below spot.

Put additions: Large long-dated and structural put OI clusters centered at $630, $615, $640 and a broad put floor $495-$630 (big OI at $535, $590, $530 in longer curves). Short-dated heavy put volume is concentrated on the 4/10 expiry (677-682 strikes) — likely expiry-specific hedging.

GEX/DEX consistency: Yes — positive GEX (+$1.2B) and concentrated near-term positive GEX at $675-$680 align with the call-heavy net premium and pinning regime; dealer hedging should create buying into weakness around the pin band.

OI clusters: Near-term call OI clusters: $675 (28,847), $680 (21,457), $677 (15,776), $679 (14,498). Large put OI clusters deeper: $630 (126,627), $615 (92,344), $640 (87,816), $625 (72,548), $645 (52,409). Calls create a short-term pin/wall around $675-$680; puts create a longer-term support band in the low 600s.

Hedging evidence: Strong evidence of expiry-driven hedging (4/10) and longer-dated protective put concentration in the 615-645 band. Minimal evidence of systematic collaring today — more of a bifurcated structure: short-dated call accumulation vs long-dated put protection.

Max pain context: Max Pain is rising across expirations (short-term MP near $654 → longer expiries trending to $680). Near-term expiries still show MP lower than spot, but the immediate pin forces at $675-$680 (GEX) are holding spot above those MPs for now.

Signal vs Noise

~Large volumes in 4/10 puts (e.g., $680P, $679P, $677P, $678P, $681P) are predominantly expiry-driven (same-day) and likely include rolling/expiry hedging — treat as short-lived directional signal unless similar flow repeats in multi-day windows.

~High put OI at $630/$615/$640 are structural protective positions (long-dated hedges) and not immediate bearish flow despite large notional; they represent a put floor rather than active daily directional pressure.

~Heavy call volume at $677/$685 may include spread structures (call ladders or verticals) executed as large blocks — isolated prints can look like aggressive outright buys but may be part of hedged structured trades.

~Dealer rebalancing / market-maker gamma hedging around the pin band ($675-$680) explains much of the intraday buying pressure — much of the short-term flow is dealers hedging client activity, not pure directional conviction.

Key Conclusions

📌Pinning regime: concentrated GEX (+$107.8M at $680, +$70.7M at $679, +$58.7M at $677) is actively holding spot near $679.91

🐂Net premium strongly bullish: +$217.9M with large call flow at $677 and $685 — dealers must hedge, supporting spot

⚠️Put volume is heavy by ratio (P/C vol 1.71) and OI is put-heavy (P/C OI 2.17); large structural put clusters (630/615/640) provide downside support but reflect longer-term hedging

🧭Short-dated expiry prints (4/10) dominate the unusual activity list — treat as expiry-driven; watch if similar-sized flow persists into longer-dated expiries before raising conviction of a regime shift

🕵️If calls at $677-$685 continue to print and net premium remains elevated, expect dealers to keep pinning between $675-$680; a flip in net premium or repeat large put buys around 650-670 would invalidate the bullish tilt

Read the Flow analysis for SPY for 2026-04-09. This AI-generated report covers regime classification, key price levels, strategy recommendations, and actionable trade ideas drawn from end-of-day options data including gamma exposure, delta exposure, and implied volatility.