COST Flow Report

Analysis based on market close March 31, 2026

Flow Verdict

Confidence:

4.5 / 10

base 5; -0.5 mixed flow (bullish prem vs bearish P/C); -0.5 spot above MP with falling trend; +0.5 GEX pinning supportive of range

Watch next session: Spot reaction around $985-$990 zone; Flow in the $1000-$1002.5 calls for directional clues

Flow Summary

Net premium: +$47.0M bullish

P/C volume ratio: 1.41 — put-dominant volume

P/C OI ratio: 1.04 — balanced OI

A significant contradiction: net premium is strongly bullish, driven by massive, deep OTM call purchases, while near-spot volume is put-dominant (P/C 1.41). This suggests a market split between long-term, low-delta bullish bets and near-term defensive/hedging activity. The spot is above max pain, but the MP trend is falling.

Notable Prints

COST 4/17/26 $580 Put

Vol: 1,103

OI: 295

Vol/OI: 3.7x

IV: 132.1%

Notional: ~$639,740

Intent: Tail-risk hedge or speculative put purchase

Dual read: Bought (bearish hedge) or sold (bullish income, but unlikely given IV and strike)

Read-through: Extremely high IV (132%) and deep OTM nature suggest this is a cheap, long-dated hedge against a major downside move, not a near-term directional bet. It's a 'disaster insurance' purchase.

COST 4/2/26 $1002.5 Call

Vol: 269

OI: 106

Vol/OI: 2.5x

IV: 18.7%

Notional: ~$269,000

Intent: Near-term, at-the-money directional bet or delta hedge.

Dual read: Bought (bullish breakout) or sold (covered call/neutral)

Read-through: Low IV suggests this is likely a purchase (buying low vol). With spot at $996.43, this is a bet on a quick move above $1002.5 by Friday. Its significance is as a near-spot, near-dated signal amidst the OTM noise.

COST 4/2/26 $985 Put

Vol: 255

OI: 123

Vol/OI: 2.1x

IV: 23.5%

Notional: ~$251,175

Intent: Near-term protective put or bearish bet.

Dual read: Bought (bearish) or sold (bullish put write)

Read-through: Strike aligns with the max pain level for the weekly expiration ($977.5-$985). This is likely a hedge against a pullback to the max pain zone or a direct bet on that move. Reinforces the defensive tone in near-spot flow.

COST 4/24/26 $550 Put

Vol: 195

OI: 115

Vol/OI: 1.7x

IV: 72.3%

Notional: ~$107,250

Intent: Follow-on tail-risk hedge (similar to the $580P).

Dual read: Bought (hedge) or sold (income)

Read-through: Another deep OTM put with elevated IV. Part of a theme of securing long-dated, far-out downside protection, contributing to the put-dominant volume ratio.

Institutional Positioning

Call additions: Massive, concentrated buying in deep OTM calls ($460, $540, $600 strikes). This is likely long-term, low-delta bullish positioning or structured trade legs, not near-term directional.

Put additions: Near-spot puts ($985) and deep OTM multi-month hedges ($580P, $550P). The deep puts are meaningful for portfolio hedging.

GEX/DEX consistency: Partially. Positive GEX (+$11.7M) suggests pinning/mean-reverting forces, which aligns with spot hovering near max pain. However, the put-dominant volume flow contradicts pure bullish GEX interpretation, showing underlying hedging demand.

OI clusters: Major OI clusters: Upside: $1000C (1,756 OI), $1065C (1,609), $1030C (1,383). Downside: $820P (1,158 OI - the gamma flip level), $800P (1,088). Creates a wide potential range between $820 and $1065.

Hedging evidence: Clear. The $580P and $550P prints are textbook institutional hedging activity—buying cheap, long-dated puts for portfolio protection. The $985P is a nearer-term hedge.

Max pain context: Spot ($996.43) is 1.9% above aggregate max pain (~$978). Near-term MP is at $977.5-$985. The falling MP trend across expirations ($978 → $930) suggests options positioning is gradually shifting to lower price expectations over time.

Signal vs Noise

~The massive premium flow into deep OTM calls ($460C, $540C, etc.) is a SIGNAL of long-term bullish conviction or structured trade activity, but it is NOISE for near-term price direction. These are low-delta, high-premium plays likely unrelated to the next few weeks' move.

~The $580 Put and $550 Put prints, while unusual, are tail-risk hedges. They signal defensive positioning but not an imminent crash forecast.

~High OI at the $1600 Call is likely noise—remnant of old, lottery-ticket positions far from current price.

Key Conclusions

⚠️Flow is schizophrenic: bullish premium (deep calls) vs bearish volume (puts). Resolve via near-spot activity.

🛡️Institutional hedging is evident via deep OTM put purchases, indicating defensive overlay.

📌GEX pinning + spot near max pain suggests a battle around $985-$1000. Break below $985 is key for bears.

🎯Watch $985 (near-term MP/put strike) and $1002.5 (call strike) for near-term directional resolution.

Read the Flow analysis for COST for 2026-03-31. 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.