ASML Flow Report

Analysis based on market close March 31, 2026

Flow Verdict

Confidence:

7.5 / 10

base 5; +2 strong put OI dominance & negative GEX; +0.5 spot below max pain; +0.5 high IV regime; -0.5 mixed net premium signal

Watch next session: $1245 PUT OI cluster for support test; Flow in $1400-$1500 calls for resistance clues; Net premium direction for conviction

Flow Summary

Net premium: +$65.1M (mixed signal - skewed by far OTM calls)

P/C volume ratio: 1.31 — put-dominant volume

P/C OI ratio: 1.41 — strong put-dominant positioning

The flow presents a conflicting picture. While net premium is positive, it's heavily skewed by massive premium in far OTM calls (e.g., $340 strike). The volume and, more importantly, the open interest tell a bearish story with clear put dominance. The negative GEX and spot trading below max pain reinforce the defensive positioning.

Notable Prints

ASML 4/2/26 $1430 Call

Vol: 1,482

OI: 138

Vol/OI: 10.7x

IV: 47.8%

Notional: ~$2.1M (1482 * $1430)

Intent: Lottery ticket directional bet or spread leg

Dual read: Bought (bullish speculation on large move) or sold (premium collection in high IV)

Read-through: Given the high volume vs. OI and strike ~$110 above spot, this is likely a low-probability, high-reward directional bet bought ahead of the 4/2 expiry. The 47.8% IV is below the term structure average, suggesting it was bought, not sold.

ASML 4/24/26 $790 Put

Vol: 527

OI: 250

Vol/OI: 2.1x

IV: 106.3%

Notional: ~$416K (527 * $790)

Intent: Tail-risk hedge or protective put roll

Dual read: Bought (deep protection) or sold (yield on extreme skew)

Read-through: Extremely high IV (106.3%) and deep OTM strike (~40% below spot) point to this being a premium sale (short put) for yield, not a directional bet. This is a volatility/income play, not a bearish signal on spot.

ASML 4/2/26 $1325 Put

Vol: 350

OI: 178

Vol/OI: 2.0x

IV: 38.7%

Notional: ~$464K (350 * $1325)

Intent: Near-term directional hedge or speculation

Dual read: Bought (bearish bet for quick drop) or sold (premium sale at support)

Read-through: Strike is just above current spot ($1320.83) with expiry in 2 days. The low 38.7% IV suggests these were likely bought (bearish) as a cheap hedge or bet on a slight dip below $1325 by Friday. Adds to the near-term defensive tone.

ASML 8/21/26 $910 Put

Vol: 338

OI: 200

Vol/OI: 1.7x

IV: 56.4%

Notional: ~$307K (338 * $910)

Intent: Longer-dated protective put or put spread leg

Dual read: Bought (medium-term hedge) or sold (yield generation)

Read-through: Strike is ~31% below spot, expiring in ~5 months. IV of 56.4% is in line with the term structure. This is likely part of a longer-dated hedge or part of a defined risk spread (e.g., put calendar or diagonal).

Institutional Positioning

Call additions: Minimal near spot. Large premium in far OTM calls ($340, $380) skews net premium but is non-directional.

Put additions: Significant OI clusters at $1245P (2,017 OI) and $1075P (1,943 OI) establish clear support levels and negative gamma.

GEX/DEX consistency: Yes — Negative GEX (-$2.4M) aligns with put-heavy OI, creating a pro-cyclical (trending) regime. Dealers are short gamma and will hedge by selling into weakness.

OI clusters: Major put walls at $1245 (2,017 OI) and $1075 (1,943 OI). Call walls are less concentrated near-term; $1400C has 1,035 OI.

Hedging evidence: Strong evidence of medium-to-long term hedging via the deep OTM put OI clusters ($980P, $800P, $600P). The $1245P cluster is a key near-term hedge level.

Max pain context: Spot ($1320.83) is below nearest expiry max pain ($1350) and the general MP trend is falling ($1350 → $1300), supporting a bearish drift. The $1245 gamma flip estimate is a critical near-term level.

Signal vs Noise

~Massive net premium from $340/$380/$770 calls is noise — these are likely far OTM speculative lottery tickets or part of complex multi-leg strategies, not directional bets on spot moving to those levels.

~$790 Put (4/24) with 106% IV is a volatility/yield play, not a -40% directional bet.

~The elevated P/C ratios (1.31 vol, 1.41 OI) are the stronger, cleaner signal than the net premium figure.

~Some of the put volume, especially in longer-dated, deep OTM strikes, could be overwriting (selling puts for income) rather than outright bearish bets.

Key Conclusions

⚠️Conflicting Signals: Bullish net premium driven by far OTM calls vs. bearish volume/OI/GEX. OI and GEX are more reliable.

🧱Key Gamma Level at $1245: This is the estimated flip point and a major put OI cluster. A break below accelerates negative dealer hedging.

📉Positioning is Defensive: P/C OI of 1.41 and negative GEX show institutions are positioned for downside or hedging against it.

🎯Watch Max Pain Drift: Spot below MP with a falling MP trend suggests gravity is to the downside toward $1300-$1245.

Read the Flow analysis for ASML 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.