Whale Tracker

NEUTRAL — WATCH

No clear whale direction for MRVL. Bullish and bearish signals roughly cancel out. Insiders are net buyers (2,077,298 shares bought vs 241,313 sold) — bullish conviction from management. Strong institutional ownership at 85.5% with 6 of 10 top holders actively accumulating this quarter.

Action Plan

Hold existing positions — no strong directional signal
Wait for clearer whale activity before adding
Monitor next earnings for institutional positioning changes

📈 Options Flow 期权异动

Unusual options volume vs open interest. High volume/OI ratio signals whale positioning. Put/Call ratio indicates directional bias.

PUT / CALL RATIO

0 (Bullish)1.02.0+ (Bearish)

1.42

BEARISH

CALL VOLUME

45,345

PUT VOLUME

64,606

TOTAL VOLUME

109,951

UNUSUAL STRIKES

Unusual Strikes — Vol/OI > 3x (5C / 5P)

TypeStrikeExpiryVolOIRatio

PUT$1222026-06-0515,51840387.9x

PUT$1162026-06-052,0607294.3x

PUT$1192026-06-051,2035240.6x

PUT$1212026-06-059551950.3x

CALL$1312026-06-0548148.0x

CALL$1222026-06-0528128.0x

CALL$1142026-06-0524124.0x

CALL$1232026-06-0524124.0x

CALL$1422026-06-1240220.0x

PUT$1952026-06-121,2226419.1x

High Volume Contracts — Vol > 500 (10 contracts)

TypeStrikeExpiryVolume

PUT$1222026-06-0515,518

CALL$2002026-06-186,344

CALL$2202026-06-055,230

PUT$1202026-06-055,036

CALL$2152026-06-054,283

PUT$1752026-06-052,074

PUT$1162026-06-052,060

CALL$2102026-06-052,040

PUT$1152026-06-051,919

PUT$2002026-06-051,778

P/C OI RATIO

1.23

TOTAL OI

678,619

CALL OI

303,770

PUT OI

374,849

Put/Call volume ratio: 1.42 (bearish)
Total options volume: 109,951 (calls 45,345 / puts 64,606)
Top unusual: PUT $122.0 exp 2026-06-05 — vol/OI 387.9x
23 unusual strikes detected (8C / 15P)

👤 Insider Trading 内部交易

SEC Form 4 filings — officer and director buys/sells in the last 90 days. Net buying is a strong bullish signal.

90% BUY

10% SELL

SHARES BOUGHT (6m)

2,077,298

SHARES SOLD (6m)

241,313

NET INSIDER FLOW

+1,835,985

FORM 4 FILINGS (90d)

Recent Insider Transactions (0 buys / 10 sells / 0 grants)

TypeInsiderSharesDate

SELLMEINTJES WILLEM A4,0002026-05-15

SELLMURPHY MATTHEW JOSEPH7,5002026-05-13

SELLKOOPMANS CHRISTOPHER R10,0002026-05-01

SELLCASPER MARK JOHN10,0002026-04-17

SELLBHARATHI SANDEEP66,8922026-04-16

SELLMURPHY MATTHEW JOSEPH7,5002026-04-15

SELLMEINTJES WILLEM A30,0002026-04-15

SELLCASPER MARK JOHN6,9002026-04-06

SELLCASPER MARK JOHN17,8542026-04-02

SELLBHARATHI SANDEEP44,4142026-03-26

Insider buying: 2,077,298 shares
Insider selling: 241,313 shares
18 Form 4 filings in last 90 days
Net insider BUYING — bullish signal

🏦 Smart Money Flow 机构资金流向

Quarter-over-quarter position changes from 13F filings. Shows whether institutional investors are accumulating (buying more) or distributing (selling) — the strongest signal of whale conviction.

INSTITUTIONAL OWNERSHIP

85.5%

ACCUMULATION vs DISTRIBUTION

60% ACCUMULATING

40% DISTRIBUTING

NET SHARES FLOW

+50,797,078

FLOW SCORE

+0.34

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

★ NEW POSITIONVanguard Capital Management LLC4.36%NEW+19,552,612

★ NEW POSITIONVanguard Portfolio Management LLC3.70%NEW+16,609,055

▲▲ HEAVY BUYAmeriprise Financial, Inc.2.32%+21.6%+3,697,025

▲ ADDINGBlackrock Inc.7.11%+6.8%+4,036,909

▲ ADDINGVan Eck Associates Corporation1.20%+8.9%+880,924

▲ ADDINGGoldman Sachs Group Inc1.25%+7.5%+782,799

▬ HOLDFMR, LLC14.63%+3.5%+4,438,597

▬ HOLDState Street Corporation2.60%+2.2%+504,626

▬ HOLDGeode Capital Management, LLC1.40%+3.9%+475,871

▬ HOLDFranklin Resources, Inc.1.27%-1.6%-181,340

ETF & Mutual Fund Flow (4 adding / 1 selling)

ActionFundQoQ ΔShares Δ

▲ ADDINGFidelity Select Portfolios-Select Semiconduct+5.4%+1,878,082

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-0.2%-51,577

▬ HOLDInvesco QQQ Trust, Series 1+1.6%+293,643

▬ HOLDFidelity Securities Fund-Fidelity Blue Chip G+0.3%+63,143

▲ ADDINGFidelity Select Portfolios-Technology Portfol+6.2%+978,848

▬ HOLDiShares Trust-iShares Semiconductor ETF+3.4%+360,312

▲ ADDINGVanEck ETF Trust-VanEck Semiconductor ETF+8.8%+862,133

▲▲ HEAVY BUColumbia Fd.s Series TRT II-Columbia Seligman+24.4%+1,997,033

▼ TRIMMINGVANGUARD INDEX FUNDS-Vanguard Growth Index Fu-9.8%-1,051,733

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Mid-Cap Index F+0.4%+41,282

Institutional ownership: 85.5%
Smart money flow: 6 adding / 0 selling / 4 hold
Net shares added by institutions: +50,797,078
Biggest mover: Vanguard Capital Management LLC added 19,552,612 shares (+100.0%)

🕶 Short Interest & Dark Pool 做空 & 暗池

Short interest as % of float and days-to-cover. Rising SI = bearish pressure. High SI + decreasing = shorts covering (bullish). Squeeze risk rated by SI level.

SHORT INTEREST (% OF FLOAT)

0%10%20%30%+

SHORT % FLOAT

4.3%

DAYS TO COVER

1.2

SI CHANGE (MoM)

↑ 11.4%

SQUEEZE RISK

MINIMAL

SHARES SHORT

32,247,247

PRIOR MONTH

28,955,038

FLOAT SHARES

871,939,404

AVG VOLUME

27,298,371

Short interest: 4.3% of float
Days to cover: 1.2
Short interest MoM: ↑ 11.4%
Squeeze risk: MINIMAL

📡 Data Sources 数据来源

Options Flow

BEARISH (80%)

Insider Trading

BULLISH (90%)

Smart Money Flow

LEAN BULLISH (75%)

Short Interest

NEUTRAL (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 4.3% of float
[dark_pool] Days to cover: 1.2
[institutional] Institutional ownership: 85.5%
[institutional] Smart money flow: 6 adding / 0 selling / 4 hold
[insider] Insider buying: 2,077,298 shares
[insider] Insider selling: 241,313 shares
[options_flow] Put/Call volume ratio: 1.42 (bearish)
[options_flow] Total options volume: 109,951 (calls 45,345 / puts 64,606)