Whale Tracker

NEUTRAL — WATCH

No clear whale direction for MU. Bullish and bearish signals roughly cancel out. Insiders are net sellers (241,306 shares sold vs 23,676 bought) — management reducing exposure. Strong institutional ownership at 80.8% with 4 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)

0.87

NEUTRAL

CALL VOLUME

293,203

PUT VOLUME

254,168

TOTAL VOLUME

547,371

UNUSUAL STRIKES

High Volume Contracts — Vol > 500 (10 contracts)

TypeStrikeExpiryVolume

CALL$8002026-05-1526,698

CALL$9002026-05-1523,726

CALL$8502026-05-1517,939

CALL$8102026-05-1513,808

CALL$10002026-05-1511,971

PUT$7502026-05-1511,510

CALL$7902026-05-1511,071

CALL$7952026-05-1510,843

PUT$7002026-05-159,152

CALL$8202026-05-158,542

P/C OI RATIO

1.0

TOTAL OI

CALL OI

PUT OI

Put/Call volume ratio: 0.87 (bullish)
Total options volume: 547,371 (calls 293,203 / puts 254,168)

👤 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.

9% BUY

91% SELL

SHARES BOUGHT (6m)

23,676

SHARES SOLD (6m)

241,306

NET INSIDER FLOW

-217,630

FORM 4 FILINGS (90d)

Recent Insider Transactions (0 buys / 9 sells / 1 grants)

TypeInsiderSharesDate

SELLGOMO STEVEN J2,0002026-05-11

SELLMEHROTRA SANJAY40,0002026-05-01

SELLRAY MICHAEL CHARLES7,6012026-05-01

SELLCORDANO MICHAEL D3,4072026-04-14

SELLSADANA SUMIT24,0002026-04-10

SELLCORDANO MICHAEL D3,4072026-04-09

SELLARNZEN APRIL S40,0002026-04-01

GRANTLIU TEYIN MARK972026-03-31

SELLSADANA SUMIT25,0002026-02-02

SELLRAY MICHAEL CHARLES12,2682026-01-27

Insider buying: 23,676 shares
Insider selling: 241,306 shares
10 Form 4 filings in last 90 days
Net insider SELLING — bearish 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

80.8%

ACCUMULATION vs DISTRIBUTION

40% ACCUMULATING

60% DISTRIBUTING

NET SHARES FLOW

+35,409,730

FLOW SCORE

+0.16

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

★ NEW POSITIONVanguard Capital Management LLC6.49%NEW+36,568,641

★ NEW POSITIONVanguard Portfolio Management LLC2.04%NEW+11,512,307

▲ ADDINGJPMORGAN CHASE & CO1.40%+19.9%+2,621,542

▲ ADDINGMorgan Stanley1.45%+5.1%+794,166

▬ HOLDBlackrock Inc.9.15%+2.4%+2,447,023

▬ HOLDState Street Corporation4.68%+2.1%+1,090,021

▬ HOLDGeode Capital Management, LLC2.31%-0.2%-41,663

▬ HOLDFMR, LLC3.51%-1.2%-468,761

▼ TRIMMINGPrimecap Management Company1.94%-11.8%-2,920,858

▼▼ HEAVY SELLCapital World Investors3.73%-27.8%-16,192,688

ETF & Mutual Fund Flow (0 adding / 3 selling)

ActionFundQoQ ΔShares Δ

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar+0.4%+137,392

▬ HOLDVANGUARD INDEX FUNDS-Vanguard 500 Index Fund+2.5%+693,055

▬ HOLDInvesco QQQ Trust, Series 1+1.6%+379,366

▼▼ HEAVY SEVANGUARD CHESTER FUNDS-Vanguard PRIMECAP Fund-20.4%-3,760,704

▬ HOLDiShares Trust-iShares Core S&P 500 ETF+1.1%+158,822

▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.6%+88,567

▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P +3.0%+396,777

▼ TRIMMINGGROWTH FUND OF AMERICA-14.9%-2,104,053

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Value Index Fun+3.0%+305,538

▼▼ HEAVY SEAMERICAN BALANCED FUND-35.9%-5,360,115

Institutional ownership: 80.8%
Smart money flow: 4 adding / 2 selling / 4 hold
Net shares added by institutions: +35,409,730
Biggest mover: Vanguard Capital Management LLC added 36,568,641 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

3.3%

DAYS TO COVER

0.8

SI CHANGE (MoM)

↑ 18.9%

SQUEEZE RISK

MINIMAL

SHARES SHORT

37,273,548

PRIOR MONTH

31,355,866

FLOAT SHARES

1,123,583,990

AVG VOLUME

43,834,924

Short interest: 3.3% of float
Days to cover: 0.8
Short interest MoM: ↑ 18.9%
Squeeze risk: MINIMAL

📡 Data Sources 数据来源

Options Flow

NEUTRAL (80%)

Insider Trading

BEARISH (90%)

Smart Money Flow

LEAN BULLISH (75%)

Short Interest

NEUTRAL (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 3.3% of float
[dark_pool] Days to cover: 0.8
[institutional] Institutional ownership: 80.8%
[institutional] Smart money flow: 4 adding / 2 selling / 4 hold
[insider] Insider buying: 23,676 shares
[insider] Insider selling: 241,306 shares
[options_flow] Put/Call volume ratio: 0.87 (bullish)
[options_flow] Total options volume: 547,371 (calls 293,203 / puts 254,168)